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O-26-25 Approving a Special Use for a Preliminary Planned Unit%sa U-Z TO: Village Board Meeting FROM: Jason Berry, Community Development THROUGH: Jason Berry, CEcD, AICP, Economic & Community Development Director SUBJECT: An Ordinance Approving a Special Use for a Preliminary Planned Unit Development (PUD) Plan for a Medical Office Building at 15505 E 127th Street in Lemont, IL (Silver Cross) DATE: April 28,2025 SUMMARY/BACKGROUND Silver Cross Hospital requests Preliminary Planned Unit Development (PUD) approval for phased redevelopment of its 3.06-acre property at 15505 E 127th Street. The project includes a 20,608-square-foot medical office building, updated parking, landscaping, and site improvements to maintain operations during construction. A PUD is required due to the presence of two buildings during phasing and several requested deviations from the Unified Development Ordinance (UDO), including exterior materials, signage, and a reduced corner side yard setback. A rooftop screening deviation has been identified but will be considered with the Final PUD. ANALYSIS Comprehensive Plan The Lemont 2030 Comprehensive Plan designates the site as Community Retail but also identifies the 127th Street corridor as a "Health Care Sector," supporting continued investment in medical and wellness -related uses. Planning & Zoning Commission .(PZC ) A public hearing was held at the PZC meeting on April 9, 2025. The PZC voted (6-0) to recommend approval with conditions that have been incorporated into the attached ordinance. Committee of the Whole (COW) The proposed PUD was discussed at the COW meeting on April 21, 2025. Consistency with Village Policy Lemont 2030 Comprehensive Plan STAFF RECOMMENDATION Approve attached ordinance. BOARD ACTION REQUESTED Motion to approve attached ordinance. An Ordinance Granting a Special Use for a Final Planned Unit Development Plan for Silver Cross Redevelopment on 3.05 Acres at 15505 E 127th Street in Lemont IL ORDINANCE NO. - 2 Y' AN ORDINANCE GRANTING A SPECIAL USE FOR A PRELIMINARY PLANNED UNIT DEVELOPMENT r: , PLAN FOR SILVER CROSS HOSPITAL REDEVELOPMENT ON 3.05 ACRES LOCATED AT 15505 E 1271h STREET IN (Silver Cross) ADOPTED BOF THE VILLAGE Y THE LEMON' THIS 281h DAY OF APRIL, 2025 Published in pamphlet form by Authority of the President and Board of Trustees of the Village of Lemont, Counties of Cook, Will and DuPage, Illinois, this 28tn day of April, 2025. ORDINANCE _0 '/ 'kl AN ORDINANCE GRANTING A SPECIAL n A PRELIMINARY PLANNED UNIT DEVELOPMENT (PUD) PLAN FOR OFFICE CROSS HOSPITAL D LOCATED STREET IN LEMONT, REDEVELOPMENT ON 3.05 ACRES ILLINOIS (Silver Cross) WHEREAS, Silver Cross Hospital, represented by Vince Pryor, (hereinafter referred to as "the Petitioner") is the owner of the 3.05-acre property at 15505 E 127r" Street (PIN# 22-29-402-020) (hereinafter referred to as the "Subject Property"), legally described and depicted in Exhibit A; and WHEREAS, the Petitioner applied pursuant to the provisions of the Lemont, Illinois Municipal Code, Title 17 Unified Development Ordinance ("UDO") seeking a special use for a preliminary planned unit development (PUD), consisting of the following (hereinafter referred to as "Silver Cross Preliminary PUD"): 1. PUD Preliminary Plan for Silver Cross Hospital by Kimley Horn dated 3/14/2025, attached hereto and incorporated herein as Exhibit B; and 2. Preliminary Engineering Plans for Silver Cross Medical Office Building by Kimley Horn dated 3/14/2025, attached hereto and incorporated herein as Exhibit C; and 3. Stormwater Memo by Kimley Horn dated 3/14/2025, attached hereto and incorporated herein as Exhibit D; and 4. Parking Memo by Kimley Horn dated 3/7/2025, attached hereto and incorporated herein as Exhibit E; and 5. Trip Generation Memo by Kimley Horn dated 3/7/2025, attached hereto and incorporated herein as Exhibit F; and 6. Silver- Cross Photometric Plans by Jensen & Halstead dated 2/28/2025, attached hereto and incorporated herein as Exhibit G; and 7. Silver Cross Sign Package by VanBruggen Signs dated 3/ t 4/2025, attached hereto and incorporated herein as Exhibit H; and S. Silver Cross Architectural Package by Jensen & Halstead dated 3/17/2025, attached hereto and incorporated herein as Exhibit I; and 9. Preliminary Landscape Plans by Kimley Horn dated 3/14/2025, attached hereto and incorporated herein as Exhibit J. WHEREAS, the Planning and Zoning Commission of the Village of Lemont, Illinois conducted a public hearing on April 9, 2025 for the Preliminary Planned Unit Development approval request and voted 6-0 to recommend approval of the Preliminary Planned Unit Development (PUD) with conditions specified as a part of this ordinance below; and WHEREAS, a notice of the aforesaid public hearing was made in the manner provided by law and was published in the Dozily Smithtown, a newspaper of general circulation within the Village; and WHEREAS, the President and Board of Trustees of the Village have reviewed the matter herein and have determined that the requested Preliminary PUD are in the best interest of public health, safety, and welfare of the residents of the Village of Lemont, and hereby adopts the finding of facts as set forth in Exhibit K. NOW, THEREFORE BE IT ORDAINED by the Village President and Board of Trustees of the Village of Lemont, Counties of Cook, DuPage, and Will, Illinois as follows: SECTION ONE: Incorporation of Recitals. The foregoing findings and recitals are hereby adopted as Section 1 of this Ordinance and are incorporated by reference as if set forth verbatim herein. SECTION TWO: Special Use. A special use for a planned unit development is granted as provided and conditioned in this Ordinance. SECTION THREE: Conditions. The special use for a planned unit development shalt have the following conditions: 1. General Conditions. Unless otherwise approved by the Village Board the Subject Property shall be developed and maintained in accordance with Village Code, the conditions of this Ordinance and the exhibits to this Ordinance. 2. Prior to final PUD approval the following plans/permits shall be applied for and submitted for approval to the Village: a) Final engineering plan, b) Final photometric plan, c) Final landscape plan, and d) Final architectural plans. 3. Specific Conditions. The following specific conditions shall apply: a) Final PUD Plan. An application for Final PUD is required at the time of final PUD submittal. b) Departures from Zoning Standards. The following departures from the UDO are a part of this PUD and ordinance: l . Section 17.07.010 & Table 17-07-01. Allow for a corner side yard setback of 20 feet as indicated in Exhibit B; and 2. Section 17.10.040 and Table 17-10-01. Allow for reduced minimum parking requirements during phased construction; and 3. Section 17.11.140 B.: Allow increase in maximum monument sign area to 88 feet; indicated on Exhibit H. 4. Section 17.11.140 B.: Allow an increase in maximum height of monument sign to 9.08-feet, as depicted in Exhibit H. 5. Section 17.11.140 F.: Allow for an additional wall sign totaling three (3) wall signs on the new building, as depicted in Exhibit H. 6. Section 17.21,030 Exterior Wall Materials. Allow the use of aluminum cladding as an exterior material. 7. Section 17.21.030 E.: Roofline and Mechanical Screening. Parapet design does not fully conceal rooftop equipment from public view. See Condition c) below. c) Final approval of rooftop mechanical screening shall be subject to review of supplemental sight -line studies, including views from the east along 127"' Street. The Village reserves the right to require enhanced architectural screening consistent with the UDO and Silver Cross precedent projects (Silver Cross Orland Park) if determined necessary to mitigate visual impacts. The final elevations will be approved in the Final PUD. d) The public amenity space shall have at least three (3) qualifying elements such as benches, raised planters, textured paving or public art, in accordance with Section 17.21.030 H of the UDO. e) Outstanding Comments. The Petitioner must address all comments forthcoming in the Final plan reviews by the Consulting Planner, Village Engineer, Village Arborist, Village Ecologist, Village Plumber and Fire Marshal, prior to Final PUD approval. SECTION FOUR: The preliminary planned unit development (PUD) approval shall lapse in the event the Petitioner does not file a complete application for Final PUD approval within one (1) year of the date of this Ordinance, unless otherwise extended by the President and Board of Trustees of the Village. SECTION FIVE: That the Village Clerk of the Village of Lemont be and is directed hereby to publish this Ordinance in pamphlet form, pursuant to the Statutes of the State of Illinois, made and provided. SECTION SIX: That this Ordinance shall be in full force and effect from and after its passage, approval and publication as provided by law. ADOPTED BY THE PRESIDENT AND BOARD D OF TRUSTEES OF THE VILLAGE OF LEMONT, COUNTIES OF COOK, WILL, AND DuPAGE, ILLINOIS, on this 281" day of 0 . M Janelle Kittridge Dave Maher Ken McClafferty Kevin Shaughnessy Rick Sniegowski Ron Stapleton AYES: NAYS V ABSENT: ABSTAIN JOfIN KG®SKE, Village President Attest HARLENE M. SMO LEN, Village Clerk F I ® L 1 1 jout.tl-g IIa1 Boundary & Topographic Survey m _71 FF z 'o LW LLI LU Ld z w w w w tJ Preliminary PUD Plan NV�d A2MINIIAHd dOjjjo IV31CII w JOH<(<Aalwl and SSOHO b]Alls LU M Ng (DiVA18d) MIVAginoo oo(ii-ine I-T LU --------------- 4.- Engineering Plans u A 0 <<( Aa w I �l zlAOO el iAzJHS zlolz]Ao IVOIGAA SSO�0 SEATS ae I J3 ,tea 0- 0- z > > < 0 0 LU W G� C� w < .5 0 w z z 0 0 (Q Z UJ cn co < < Z z W z > >IJ 0 0 7 Ir C� (I- Z z C) w w , I W < ul 0 O as not HOW I -71 7-1 Awl Z lu LU Von a _._; -� _- Nd-ld OWda o 0 SNOIlIQN00 Xd 3oldd0 TdOI4dN1 f — UaQy«<Aal l —" sso�jo �J]nlls JJ,b 'E g e'g 3 3' j4s 'a53 a a� a - 5 E y5 3 3F ,, gas 3 '�_ $ Yes b 35 tlzFQ a 2� 3 y 58is OR y L� L J '! `w. 9 Y �i'x 3 2- jSg a. b 3 i tl 8 tl Y -6 as3 1 s3 3 B b b b �j o E � EaU.<!—H =,-3 _.33.,� x ix x x+r\ N i o� < J J lJ Q t / 1 o �. xxxx xx-xx,xxxx.xl W WOW( NV_ld �WS Ssobo 83A]IS CD 0 CC - Jul ui LU G_ 0 I ui z 0 0� < uj z z 0, '9 LU q < (giVARld) ONVAAinou oomine I \wl ),I I Najd A -LIS 1 IOIJ:JO IVOIC UJOH0<A,31WIA LU U, m W 0 < as >w Lij o 2: LLJ E Yj P-� a_ (31VARJd) (INVA3inoo oomina A UJOH0<Aalwl)l NV Id SSdOOb d2Jld 311S �13Idjo I'VoloAn SSOHO 2JdnTS U .. --- (31VMJd) - MIVA3 nos oomins --_---� iL Z a , i do U) �wIz.JI I 2 —- — - F N W -- - - ( I , p -77 NVId SNIUV HE) lolijo lvolclzln UJOW(Aa IWI)l 91 7" - LU LUO I _ 'z _ l31VAWd) n I LU NV�d),irliin 10 ]VOICKIA in UJOH0<AajWI)j SSObO 2JEIAIIS 33 Ng E ;2 M- P W hN H .8-nn N (3-LVA[Hd) ClIdIVAinnos 000-rine 14� L4 LLJ LL) - — -- — -- — -- — -- — -- — -- — -- — --- Stormwater Memo Klmley)))Horn To: Village of Lemont HR Green Bruce A. Hill Municipal Executive I From: Taylor Eschbach, P.E. Kimley-Horn and Associates, Inc. Date: March 14, 2025 Re: Proposed Silver Cross Medical Office Building Development 15505 127TH Street Lemont, IL, 60439 Kimley-Horn and Associates, Inc., serves as the engineering consultant for Silver Cross Hospital. They are proposing to demolish the existing medical office building and construct a new building with associated parking. The sitework includes demolition, grading, storm sewer, water service, sanitary sewer, and paving installation. The project will be phased so that the existing building can remain in use until the new building is constructed and operational. This memo will evaluate the pre and post development runoff characteristics of the development for the approximately 3.05 AC property. Village of Lemont and Metropolitan Water Reclamation District of Greater Chicago (MWRD) requirements will be addressed. Existing Conditions The current site features a 12,807 square foot building accompanied by a paved parking lot, existing utilities, and detention. The site has an existing ridge line that runs north to south at the existing building. The western side of the site drains via sheet flow to an existing swale directly north of the property. The eastern side of the site drains via sheet flow to an existing basin at the southeast corner of the site and discharges to an existing control structure in the private road to the east. Proposed Conditions In proposed conditions, new storm sewer is proposed in the parking lot. The storm sewer will outlet into the two proposed basins on the north side of the site. The east basin will outlet into the existing storm sewer on the private road that is east of the site. An outlet control structure has been incorporated into the proposed sewer to meet the existing storm sewer conditions. Per the attached Impervious Area Exhibit, the proposed impervious area is 1.61 acres. Kimley,,>)Horn Page 2 Sformwater Detention Design The intent of this memo is to show compliance with both Village of Lemont and MWRD requirements for the modified detention basins. Per Lemont code, the allowable release rate is 0.15 cfs per acre of development. Per MWRD code, the allowable release rate for the Calumet Sag Channel watershed is 0.30 cfs per acre of development. As the allowable release rate required by the Village ordinance is less, the 0.15 cfs/acre value was used in the preliminary stormwater management calculations. The analysis of the proposed stormwater detention basins was completed with the assistance of HydroCAD Version 10.20. Detailed analysis has been provided in the attached HydroCAD Calculations. The combined basins meet the detention release rate requirements for both the Village of Lemont and MWRD. See the table below for the release rates based on the development area. 0.00 CFS 0.14 CFS 0.1 CPS 0:1 C Given the above actual release rate, the normal water level of the west pond is 753.60' and the high water level is 755.87'. This results in a bounce of approximately 2.37 feet. The bottom of the pond is set at 753.10 to allow room for volume control storage. The normal water level of the east pond is 752.50 and the high water level is 755.99'. This results in a bounce of approximately 3.49 feet. The bottom of the pond is set at 752.00 to allow room for volume control storage. The proposed basins will be natively planted and wetland style in conformance with WMO requirements. The necessary volume control will be provided below the outlet pipe at the bottom of the basins. Required and provided volume control calculations have been attached for reference. Summary The existing site will be improved to include new storm sewer infrastructure and new stormwater management basins that conform with current MWRD and Village of Lemont code requirements. The existing drainage patterns will be maintained as the site will continue to have a ridge separating the site between east and west. Both sides of the site will drain from south to north and be routed through the proposed stormwater management basins. The east side will ultimately outfall to the existing storm sewer in the private road to the east and the west side will ultimately outfall to the swale directly north of the property. Attachments HydroCAD Calculations Volume Control Calculations Impervious Area Exhibit 10E East East Pond -1 DW Z-/\ West West Pond 7Sm7cal R acnl �ion� (Link Rout ng Dregram for Concept Basins 111111 Preparetl by 4 mley Horn 8 Assoc ales. Pi pled 3n312025 �raena.� rG.iC Sc >ri 0)l<< r.20J) rrvaro<nn 5°M1.vare a°.u. ons LlC Concept Basins Huff 0-10sm 30 scaled 10 24.00 hrs F 100-yr 24-hr Rainfall=8. 57" Prepared by Kimley-Horn & Associates Printed 3/1312025 HydroCAD" 10.20-5c s1n 02344 © 2023 HydroCAD Software Solutions LLC Pout, 3 Summary for Subcatchment 1 W: West Runoff = 0.92 cfs @ 15,69 hrs, Volume= 0.655 af, Depth= Z97' Routed to Pond W -. 'Plest Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CR Time Span= 0.00-120.00 his, d1= 0,05 hrs Huff 0-10sm 3Q scaled to 24.00 hrs F. 100-yr 24-hr Rainfa11=8.57" Area (ac) CN Description 0.986 95 Urban commercial, 85°o imp, HSG D 0. 148 15.00 % Pervious Area 0.838 85.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (fee,) (flRq i"._) (cfs) 10.0 Direct Entry, Subcatchment 1 W: West W Huff 0-10sm 3Q scaled to 24.00 hrs f�(y# F. 100-yr 24-hr Rainfall 8.57" yy`i Rff Area=0.986 ac unonoff RuVolume 0 655 of Runoff Depth-7 97" _ Tc t00min tj CN 95 Concept Basins Huff 0-10sm 3Q scaled to 24.00 hrs F 100-yr 24-hr Rainfall-8.57" Prepared by Kimley-Horn & Associates Printed 3/13/2025 HydmCA0O 10.20-5c s'h, 023-4 © 2023 HydroCAD 3aft-ire Saluaons LLC Page 2 Summary for Subcatchment 1E: East Runoff = 1.93 cfs @ 15.69 hrs, Volume= 1.368 of Depth- 7.97' Routed to Pond E -. East Pond Runoff by SCS TR-20 method, UH=SCS. 111/elghted-CN, Time Span= 0,00-120.00 hrs, dt= 0.05 hrs Huff 0-10am 30 scaled to 24.00 hrs F. 100-yr 24 nr Rainfa11=8.57' Area (ac) CN Descuellou 2060.95 Urhan commercial 85 % ;mp. FiSG D 0.309 15.00% Pery ors Area 1.751 85.00% Impervious Area Ic Length Slope Velocity Capacity Description _ (min) (feet) (tt/fl) (fuss') (cfs) _ 10.0 Direct Entry, Subcatchment 1 E: East Huff 0-10sm 3Q scaled to 24.00 hrs ! F. 100-yr 24-hr Rainfa11=8.57" Runoff Area=2.060 ac Runoff Volume-1 368 of !. Runoff Depth=7 97' Tc=10.0 mm CN 95 LL 1} kk��l LMMI Concept Basins Huff 0-1Osm 3Q scaled to 24,00 hrs F. 100-yr24-hr Rainfall=8-57" Prepared by Kimley-Horn & Associates Printed 3/13/2025 H do,CADV 10.20-5c s1n 02344 © 2023 H dmCAD Software Solutions LLC Pago 4 Summary for Pond E: East Pond (44) Hint: Outlet device #1 is below defined storage Inflow Area = 2.060 ac, 85.00% Impervious, Inflow Depth = 7.97" for F. 100-yr 24-hr event Inflow = 1.93 cfs @ 15.69 hrs, Volume= 1.368 of Outflow = 0.31 cfs @ 24. 11 hrs, Volume= 1.368 af. Atlen= 84%, Lag= 504.8 min Primary = 0.31 cis @ 24.11 hrs. Volume= 1.368 of Routing by Slor-Ind method, Time Span- 0.00-120.00 hrs, dt= 0.05 hrs Peak Elev= 755.99' @ 24,11 hrs Surf.Area= 17,137 sf Storage- 40,972 cf Plug -Flow detention time= 1,320.E min calculated for 1.367 of (100% of inflow) Center-cf-Mass del. time= 1, 321.3 min ( 2,157.5 - 836.2 ) Volume Invert Avail.Stora e Stora e Description 41 752.50' 41,147 cf Custom Stage Data (Prlsmaticy_isted belory (Recale) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic -feet) (cubic -feet) 152.50 6,674 0 0 753.00 8,032 3,677 3,677 754.00 10.903 9,468 13,144 755.00 13.966 12,435 25,579 756.00 17,170 15,568 41,147 Device Routing Invert Outlet Devices #1 Primary 751,80' 2.4" Vert. OrificelGrate C= 0.610 Limited to weir flow at low heads Pr mary OutFlow ;M-0.31 Us@ 24. 11 hrs HW=755.99' (Free Discharge) L1-Orifice/Grate (Orifice Controls 0.31 cis @ 9.90 fps) Concept Basins Huff 0-10sm 3Q scaled to 24. 00 hrs F 100-yr 24-hr Rainfall=8.57" Prepared by Kimley+torn & Associates Printed 31/3/2025 Lyd,,CAD�D 1-0.20-5n sin 92344 ©2023 hiydroCAD Software Solutions --LC- Page 5 Pond E: East Pond nyd,oyr,r,n Inflow Area=2.060 ac Peak Elev=755.99' Storage=40,972 cf I y i 11 91 ri� r, 10 11a 121 Concept Basins Huff 0-10sm 30 scaled to 24,00 hrs F. 100-yr 24-hr Rainfall=8.57" Prepared by Kimley-Horn & Associates Printed 3/1312025 HydroCADO 10.20-Sc sin 02344 J 2023 Hydro CAD SofRvare Solutions LLC Page 7 Pond W: West Pond rtyaroyrann f� Concept Basins Huff 0-10mn .3Q scaled to 24.00 hrs F 100-yr 24-hr Rainfall=8.57" Prepared by Kimley-Horn & Associates Printed 3113/2025 HydroCAD'P 1Page "o Summary for Pond W: West Pond (441 Hint: Outlet device 47 is bolo,, defined storage Inflow Area = 0.986 ac, 85.00 % Impervious, Inflow Depth = 7.97" for F. 100-yr 24-hr, event Inflow = 0.92 cfs @ 15.69 hrs, Volume= 0.655 of Outibvl = 0.14 cfs @ 24.11 nrs, Volume= 0,655 of, Atten= 85% Lag= 505.2 min Primary = 0.14 ofs @ 24. 11 nrs, Volume= 0.655 at Routing by Star -Ind method, Time Span= 0.00-120.00 hrs, or- 0.05 hrs Peak Elev= 755.87' @ 24.11 hrs Surf.Area= 11,137 sf Storage- 20.162 of Plug -Flow detention time=1,447.6 min calculated for 0-655 of 000 % of inflow) Center -of -Mass det, time = 1,447.4 min ( 2,283.6 - 836.2 ) Voltme eh Avail.Sterage Storage Description _ 41 753,60' 215750 Custom Stage Data (Prismatic)t-fisted bee v (Recolc) Ra,aton Surf.Area me.smoc Cum.Sc e (feet) (sq-f, _(cubic -feet) -bc-fee, 753.60 6.827 0 0 754.10 7.678 3,625 3,626 755.10 9,490 8,584 12,210 755.60 10,450 4,985 17,195 756.00 11,450 4, 380 21.575 Device Routing Invert Outlet Devices #1 Primary 75110' 1.8" Vert. Orifice/Grate C= 0.610 Limited to weir :low at low heads Primary OutFlow :Ma-0. 14 cfs @ 24. 11 Inns HW-755.87' (Free Discharge) -1=OrificelGra[e (Orifice Controls 0.14 cfs @ 8.04 fps) � « 2 . } } z ] 2 Cl \ � ... \ y=,z - � /)« � z a \ � \ �z \ \ a \ - � ■ 20 � \ § § \ Parking Memo David Dastur To: Jensen & Halstead, Ltd. From: Emma Albers, P.E., PTOE Kimley-Horn and Associates, Inc. Date: March 7, 2025 Interim Construction Conditions Parking Evaluation for Silver Cross Professional Subject: Building Lemont, IL Kimley-Horn and Associates, Inc. (Kimley-Horn) was retained by Jensen & Halstead Ltd. to perform a parking evaluation at the existing Silver Cross Professional Building located at 15505 E 127th Street in Lemont, Illinois. The existing site is planned to be redeveloped with a proposed medical facility, which includes medical office space and an urgent care. During construction of the proposed medical facility, however, the existing medical office building would remain open and operational. To construct the proposed facility, the existing parking lot on the east portion of the site would be demolished. To accommodate existing parking demand on site during the interim construction condition, a temporary parking lot is proposed on the south side of the existing building. The site plan for the interim construction conditions is included as Attachment A. As part of this evaluation, parking occupancy data was collected on site. This data was used to evaluate adequacy of the temporary parking lot proposed on site during construction of the proposed facility. A summary of the data collection, evaluation methodology, and key findings is outlined below. Existing Parking Demand Kimley-Horn conducted parking occupancy every half hour at the existing medical office building during a typical weekday (Thursday, February 20, 2025) from 8:OOAM to 4:OOPM. This time period is reflective of peak operating hours at the existing facility. There are two parking areas on site, one lot located on the west side of the building, generally used by employees, and one lot on the east side of the building, generally used by patients and visitors. Between the two parking lots, a total of 70 spaces are currently provided, including 5 Americans with Disabilities Act (ADA) spaces. A summary of the observed parking occupancy is provided in Table 1. During the count period, the peak occurred at 11:OOAM with 22 occupied spaces (31 percent). A copy of the parking count data is provided as Attachment B. Klmley',3.) Table 1. Observed Parking Occupancy - Silver Cross Professional Building 8:OOAM 11 16% 8:30AM ( 19 27% 9:OOAM 17 24% 9:30AM 21 30% 10:OOAM 20 29% 10:30AM 19 27% 11:OOAM I 22 31 11:30AM ( 19 27%° 12:OOPM 18 26% 12:30PM 15 21 % 1:00PM 15 21 % 1:30PM 15 21 % 2:OOPM 14 20% 2:30PM 13 19% TOOPM 16 23% 3:30PM 11 16% 4:OOPM 5 7% The Silver Cross Professional Building is approximately 16,050 square feet of gross floor area. Therefore, the peak parking demand ratio is 0.28 spaces per 200 square feet of gross floor area on a typical weekday. As shown on the interim conditions site plan, 44 spaces would be provided in the proposed temporary parking lot, which would result in a parking supply ratio of 0.55 spaces per 200 square feet of gross floor area, which would accommodate the existing parking demand. Conclusion Based on a review of parking demand at the existing Silver Cross Professional Building, the peak parking demand is approximately 22 vehicles. During the construction phase, 44 parking spaces would be provided in the temporary parking lot on the south side of the building, which is expected to adequately accommodate the existing parking demand. Spillover of parking to adjacent properties or streets is not anticipated. Please do not hesitate to contact us with any questions related to the information in this memorandum. Klmley'�,))Horn Attachments, Attachment A: Site Plan Attachment B: Existing Silver Cross Professional Building Parking Count Data KImIey,-p))Horn Site Plan Existing Silver Cross Professional Building Parking Count Data Date: 2/20/2025 Weather Condition: Clear Kimley,,Morn Location: Lemont, IL PARKING OCCUPANCY COUNT Total Parking Supply Kimley)))Horn Page 2 M-1 Mm PLI WISIODIUMMOV1901 W01 Trip Generation Memo MEMORANDUM David Dastur To: Jensen & Halstead, Ltd. Emma Albers, P.E., PTOE From: Kimley-Horn and Associates, Inc. Date: March 7, 2025 Trip Generation Analysis: Proposed Medical Office Building Subject: Lemont, IL Kimley-Horn was retained by Jensen & Halstead Ltd. to prepare trip generation projections for a proposed Silver Cross medical facility located at 15505 E 127th Street in Lemont, Illinois. A copy of the proposed site plan is provided as Attachment A. DEVELOPMENT CHARACTERISTICS The site is currently developed with an approximately 16,050-square foot medical office building, located near the center of the site, that will be demolished following completion of the proposed medical office building. The two buildings are not intended to operate simultaneously. The proposed facility would be located on the east side of the site and would include approximately 17,380 square feet of medical office space and an approximately 2,641-square foot urgent care facility. The current site maintains two parking lot areas with driveways provided to each along 127th Street. The proposed development would include a consolidated parking lot west of the proposed building. Access to the site would remain consistent with existing conditions, however, via the two existing full -access driveways on the south side of the site on 1271h Street. TRIP GENERATION To evaluate the anticipated impacts of the proposed use relative to the existing medical office building, trip generation estimates were developed for the existing and proposed buildings. The Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition is a compilation of traffic count data collected at sites throughout the United States for a range of land uses based on building floor area, unit count, and other relevant variables. Trip generation data for ITE Land Use Code (LUC) 720, Medical -Dental Office Building was used in this evaluation for the existing building. For the proposed facility, the land use code (LUC) for a Medical - Dental Office Building (LUC 720) was used for the medical office space and a Clinic (LUC 630) were used for the urgent care space to provide trip generation rates. Both land use codes use building floor area to calculate trip generation for proposed site. A summary of the ITE data for a Medical -Dental Office Building (LUC 720) and Clinic (LUC 630) is provided in Table 1. imley ,�>>or Ili l rip G7-eI ar a on, Data Medical -Dental Office Building (LUC 720) Clinic (LUC 630) X = 1,000 square feet gross floor area T = Trips Per 1,000 sq. ft T = 42.97X—108.01 50% in/50% out Per 1,000 sq. ft T = 35.86X +0 34.88 50 /o in/50 /oout Ln(T)= 0.90 Ln(X) +1.34 4.07X — 3.17 79% in/21 % out 30% in/70% out T = 2,19X + 8.68 T = 3.53X +2.98 81 % in/19% out 30% in170% out The subject site is currently developed as a medical office building. Per the rates provided in Table 1, trip generation estimates for the proposed development plan and existing building are provided in Table 2. The site -generated trips projected during the peak hours were rounded to the nearest multiple of five for the purposes of this analysis, and daily trips were rounded to the nearest multiple of ten. Table 2,Site-Generated Traffic Projections cornpar;son" Proposed Medical -Dental Office 17,380 Building (LUC 720) 1 sq. ft. Proposed Urgent Care (LUC 630) 2,641 sq. ft. New Site Trips Existing Medical -Dental Office 16,050 Building (LUC 720) sq. ft. generation projections rounded to the nearest five. 640 40 10 50 20 50 70 130 10 5 + 15 ( 5 I 10 I 15 770 55 1 15 65 25 ( 60 85 -580 -35 1 -10 -45 -20 -45 -65 As shown in Table 2, the net change in trips from the existing medical office building to the proposed facility is expected to be minimal. AVERAGE DAILY TRAFFIC (A T) REVIEW Trip Distri Litio In order to estimate the potential impact of change in daily site -generated traffic on the adjacent roadway network, an estimated trip distribution was developed. The estimated distribution of site -generated traffic on the surrounding roadway network as it approaches and departs the development is a function of several variables, such as the nature of the surrounding land uses, prevailing traffic volumes/patterns, characteristics of the street system, and the ease with which motorists can travel over various sections of that system. The anticipated direction distribution of site -generated trips is outlined in Table 3. u L , °. � " s sue, i abk- 3 stfinnated °I rip gist ibil! o West via 127th Street 45% East via 12711, Street ( 55% It was estimated that the traffic generated by this site would divide approximately evenly between the east and west on 127th Street. Annual average daily traffic (AADT) data was obtained from the Illinois Department of Transportation (IDOT) for the surrounding roadway network to determine how much daily traffic would increase with change in site -generated trips. The net new trips from the change in proposed development plan compared to the existing use was used and dispersed among the network based on the estimated trip distribution. Using this distribution, the estimated daily increase of traffic from change in site -generated trips on the surrounding roadway network can be seen in Table 4. 'Fable 4, Existing and Future AADTs AADT data from IDOT was obtained from 127th Street. For a more conservative analysis, all site -generated traffic was assumed to come from this roadway. As shown in Table 4, the estimated increase to daily traffic on the nearby roadway is approximately 1.7 percent and is not anticipated to materially impact the roadway network. Additionally, 1271h Street currently provides a two-way left -turn lane, which is expected to adequately accommodate site -generated traffic. Based on Kimley-Horn's review of the site plan, existing roadway network, estimated trip generation, and comparison to the existing development, the proposed medical facility redevelopment is not expected to materially impact the roadway network. The existing access configuration would remain consistent with existing conditions and is expected to adequately accommodate the minimal increase in site -generated traffic projections from the proposed medical facility. Please do not hesitate to contact us with any questions related to the information in this memorandum. Attachments: Conceptual Site Plan (�UVAI'Hd) CRWADinoa 000-nno 5,12 1 V N I d ,V >11 )'d irn;� -ld NV IiIS II)IJ-J(D 11VOIC1101 1� Ssoaod]Alls 8 CN Lit EXHIBIT G Photometric Plans alD LU HIR 1 moons 1 HIM Ow HIM!" oil A 9 g 9 2 Sig 0 0 T! vy I I AT; I 1 11 1 a -1 A WS; 5g �Emlmm Sign Package • • f ✓# G� h1 Y Ell y¢� r3 1� Z i �I coLIJ L11 v � w LU J)? U LU = � 1 mL ® Q V'1 LU co - � 9L Q � �C `te d LU LL — - F J€ Y �. ) i 7 N o �o� -_ Ln LL N 22 LU O 0� Oqje cc 0 E Ln N F I m IN 0@ E C) 00 a 0 1 > Ln rq 0 N Architectural Package uD a o z Or O _O F Ln' Q w Q ' J W z Co v I Landscape Plans 3d � NV�d IVAOWd2� wr — , �OIddO �'dOladW o W � UJOHO(AgIWIN SSOHO 2J3nIIS UJOH0<AalwDl NV]d IVAOAzRd '21 NOUVAHdSzl�ld ]EHi ]Oljjo jvol(IzM SsoLjo bDA�IS A g E g ol W 1H A I > > > > > > >> > > > > > > > > > > > j j 7 > > > > > >> >> 0 0 > . . I . . -- 0 > . . . . . . zi of mi 21 -i ----- --- ---- a 5� --- 5� 5� -2 01 75 -m -2 2 a 3 3 C�:� �2 S2 E L 5 D 7) D �D 2 c, U� U5 IU 5 Cf (L� 0 :5 IUIC=f,l , yWI jo�olol < U U < < 0 0 < < 0 0 0 0 0 < < 0 C, < 0 0 < 0 o o �d L, 10 0 o� i 0 0 Nf/Id t �1JOH(H/���LUI� ddVOSaNVI �OLIJO WOI(Eln ,:,,,, --- - -- - (aivniad) obvnainoa ooa ina g r� I I o , O I n o oe. All _ u a oI �l U i�,OH<(<Agiwl� SlIdldo ShcON ddVOSONV' dOldd0 �VOIC] SSObO 2JDA�IS Y o o v w - ,v_j ._. w 0 w U z a a �I = p S a - of t / r`-1 S I,I C C FINDINGS, Based upon the evidence and testimony presented during the public hearing, the Lemont Village Board of Trustees finds the following: 1. The Lemont 2030 Comprehensive Plan's fiiture land use map designates the subject site Community Retail (CR). 2. The proposal achieves goals and objectives of the Lemont 2030 Comprehensive plan. 3. The Silver Cross Redevelopment PUD sufficiently meets the standards for PUD objectives found in § 17.08.010 C