20150922 Prosper TH Comparable cost presentation 9-22-15 FINALProsper TH Price Info
For discussion purposes only
Toured Projects Probable Construction Costs
Lewisville Town Hall
Over $350 per SF
2003
Corinth Town Hall
$225 per SF
2003
Coppell Town Hall
$275 per SF
1985
Relevant Construction Costs
Melissa City Hall
June 2010
$250 per SF
(Site development by developer)
Building $ per SF: $163
Finish out $ per SF: $87
Relevant Construction Costs
Prosper HS
August 2009
$223 per SF
Building $ per SF: $139
Finish out $ per SF: $84
Relevant Construction Costs
Windsong Elementary School
September 2015
$212 per SF
Building $ per SF: $137
Finish out $ per SF: $75
Relevant Construction Costs
Prosper Fire Station No. 2
June 2015
$375 per SF
Building $ per SF: $272
Finish out $ per SF: $103
Relevant Construction Costs
North Texas Municipal Water District Admin Bldg
August 2014
(3-Story Tilt Wall)
$234 per SF
Building $ per SF: $152
Finish out $ per SF: $82
Relevant Construction Costs
Ortho Texas Office Bldg
(Class A Building)
December 2015
$275 per SF
Building $ per SF: $179
Finish out $ per SF: $96
PROSPER TOWN HALL/MULTI-PURPOSE BUILDINGPRELIMINARY COST COMPARISON*September 22, 2015 Building Area (SF) Assumed Current Cost ($/SF)** Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) BUILDING RELATED COSTSTOWN HALL*Year 2020 Needs Assessment23,139 220.00$ 5,090,580$ 23,139 174.05$ 4,027,343$ 23,139 363.19$ 8,403,853$ 23,139 325.29 7,526,885$ 23,139 165.40$ 3,827,191$ Added Space for 2024 per Needs Assessment 8,956 220.00$ 1,970,320$ 8,956 174.05$ 1,558,792$ 8,956 363.19$ 3,252,730$ 8,956 325.29 2,913,297$ 8,956 165.40$ 1,481,322$ 32,095 32,095 32,095 32,095 32,095 MUNICIPAL COURT**Year 2020 Needs Assessment2,416 220.00$ 531,520$ 2,416 174.05$ 420,505$ 2,416 363.19$ 877,467$ 2,416 325.29 785,901$ 2,416 165.40$ 399,606$ Added Space for 2024 per Needs Assessment 1,114 220.00$ 245,080$ 1,114 174.05$ 193,892$ 1,114 363.19$ 404,594$ 1,114 325.29 362,373$ 1,114 165.40$ 184,256$ 3,530 3,530 3,530 3,530 3,530 LIBRARYYear 2020 Needs Assessment10,146 220.00$ 2,232,120$ 10,146 174.05$ 1,765,911$ 10,146 363.19$ 3,684,926$ 10,146 325.29 3,300,392$ 10,146 165.40$ 1,678,148$ ***Revised from Class A to class B office building due to decreased finish equipment.Added Space for 2024 per Needs Assessment 2,369 220.00$ 521,180$ 2,369 174.05$ 412,324$ 2,369 363.19$ 860,397$ 2,369 325.29 770,612$ 2,369 165.40$ 391,833$ 112,515 12,515 12,515 12,515 12,515 TOTAL BUILDING COSTS2Complete Finish Out35,701 220.00$ 7,854,220$ 35,701 174.05$ 6,213,759$ 35,701 363.19$ 12,966,246$ 35,701 325.29 11,613,178$ 35,701 165.40$ 5,904,945$ Added Space for 2024 per Needs Assessment 12,439 220.00$ 2,736,580$ 12,439 174.05$ 2,165,008$ 12,439 363.19$ 4,517,720$ 12,439 325.29 4,046,282$ 12,439 165.40$ 2,057,411$ 3Additional Shell Space needed to make up 50,000 SF1,860 220.00$ 409,200$ 1,860 174.05$ 323,733$ 1,860 363.19$ 675,533$ 1,860 325.29605,039$ 1,860 165.40$ 307,644$ SUBTOTAL RAW BUILDING ONLY COSTS 50,000 220.00$ 11,000,000$ 50,000 174.05$ 8,702,500$ 150,000 363.19$ 18,159,500$ 50,000 325.29 16,264,500$ 50,000 165.40$ 8,270,000$ 145 Represents estimated IT cost of $125K + Security cost of $75K. Based on ROM Estimate from DataCom Design Group.Exterior upgrades to brick & punched openings22,500 10.00$ 225,000$ 222,500 10.00$ 225,000$ 26Interior finish beyond basic paint, carpet, lay-in clg.50,000 7.50$ 375,000$ 250,000 7.50$ 375,000$ 2Additional interior costs for acoustic elements4,000 10.00$ 40,000$ 34,000 10.00$ 40,000$ 3Foundation cost for structured slab20,000 10.00$ 200,000$ 420,000 10.00$ 200,000$ 47 Amount from original Needs Assessment estimate increased relative to building size increase.Upgrade to (2) MRL Elevators, 2,500#-$ 14-$ -$ 148Fire Alarm System50,000 2.00$ 100,000$ 50,000 2.00$ 100,000$ Fireproof cabinet(s) for vital documents50,000 0.10$ 5,000$ 1550,000 0.10$ 5,000$ 159Based on ROM estimate from DataComm Design Group10ADDITIONAL BUILDING RELATED INFRASTRUCTURE COSTSIT/Security50,000 5.40$ 269,992$ 50,000 4.00$ 200,000$ 550,000 4.00$ 200,000$ 5IT Equipment Room Infrastructure50,000 4.48$ 224,083$ 50,000 4.48$ 224,000$ 950,000 4.48$ 224,000$ 911Assumed number based off of original Needs Assessment estimate.AV & Equipment50,000 14.57$ 728,271$ 50,000 7.50$ 375,000$ 1050,000 7.50$ 375,000$ 1012Means includes a 17kW generatorEmergency Generator50,000 2.80$ 140,052$ 50,000 -$ -$ 1250,000 -$ -$ 1213SUBTOTAL247.25$ 12,362,399$ 229.63$ 10,446,500$ 220.98$ 10,014,000$ BUILDING COST CONTINGENCY @ 7% (reduced from 10%)1724.72$ 1,236,240$ 16.07$ 731,255$ 15.47$ 700,980$ 14SUBTOTAL BUILDING RELATED COSTS271.97$ 13,598,639$ 245.70$ 11,177,755$ 236.45$ 10,714,980$ 15BUILDING RELATED ESCALATION16Year 20148% 21.76$ 1,087,891$ Year 20157% 20.56$ 1,028,057$ 5% 12.29$ 558,888$ 5% 11.82$ 535,749$ Year 2016 to March (bid date)167% 22.00$ 1,100,021$ 2.5% 6.45$ 293,416$ 2.5% 6.21$ 281,268$ Reduced from mid-point of construction to projected bid date in first quarter of 201617TOTAL BUILDING RELATED COSTS336.29$ 16,814,608$ 264.44$ 12,030,059$ 254.48$ 11,531,997$ Town Hall Cost ExamplesClass B Office Building*** Year 2020 Building Scope + Finished Space to total 50,000 SF Based on 2015 R. S. Means Data Based on 2015 R. S. Means Data RSA Estimating Consultant North Richland Hills C. H. 6 Year 2020 Building Scope + Finished Space to total 50,000 SF 7 4 Year 2020 Building Scope + Finished Space to total 50,000 SF 5 Year 2020 Building Scope + Finished Space to total 50,000 SF ADDITIONAL BUILDING RELATED COSTS (not included in Means) Based on Needs Assessment CONSTRUCTION COSTSRSA's estimator has very recent data on a similar project in the DFW area. This is a smaller project a little over 30,000 SF and includes higer level of finish Year 2020 Building Scope + Finished Space to total 50,000 SF 3 This Cost Comparison is being provided at this time based on Unit Costs from the previous Needs Assessment commissioned by the Town of Prosper and updated Escalation Factors from RSA's estimator. These unit costs will be updated in future estimates after further evaluation by the Design Team.Based on R.S. Means, Square Foot Costs, 2015. Means costs are escalated to January 1, 2015.Used same cost from Needs Assessment estimate. Not enough information yet to provide realistic ROM estimate.See below See belowUse standard hydraulic elevators. Means includes two hydraulic elevators. Assume no City requirement for sand oil interceptor. Consider use of vegetable oil.Expected increases to level of finish at interior & exterior. Reduced to 1/2 of previous numberAssume no built in vault. Use fireproof cabinet(s). Begin with minimum number and purchase additional cabinets as needed.Based on ROM estimate from DataComm Design Group. RSA has lowered this cost to approximately 1/2 of the previous amount. The assumption is that Prosper may be able to install a more basic AV system and upgrade over time as budget allows.Includes landscape, trees, flatwork, and irrigation. Area represents assumed site area not devoted to building or parking. Due to site coverage by building and assumed parking RSA has reduced the amount of site area assumed to be landscaped.Expected premium for structured concrete foundation. Possibly not required. Dependant on Geotech Report.Expected increase for acoustic partitions, acoustic doors, sound absorbtive panels, etc. Reduced to 1/2 of previous number.RSA ROM includes concrete parking, utilities from street to building, on-site storm control (no detention), site lighting. We have reduced this number to $12/SF of assumed site area. However, until such time as we have a topographic survey, geotechnical report, and a better idea of the building location RSA nor Pogue will be able to determine a safe cost assumption for the sitework. The Contingency percentage has been lowered from 10% to 7%. At this early stage prior to an accepted design, a fair amount of contingency is advisable. Nevertheless, we have reduced the number to 7%. As the design progresses and becomes more defined, the contingency can be further reduced. The final Construction Documents will need to maintain some contingency to allow the team to deal with unknown factors that may arise during construction. Note: Column 3 reflecting the original Needs Assessment estimate has not been lowered from its original 10% Contingency.Year 2016 escalation is reduced to reflect a reasonable expectation for of escalation to bid date in early 2016 rather than the previous mid-point if construction. This revision is based on discussions with the CM@R. Note: Column 3 continues to reflect the 7% escalation for 2016 that was indicated in the original Needs Assessment"Assumed Current Cost" is the $220/SF unit cost used in the previous Needs Assessment to represent the projected building cost. This amount was used to represent End of Year 2013 fully finished basic building construction before "Infrastructure Costs". The value of $154.00/SF found in column "2" is 70% of the $220.00/SF and represents the projected cost to constuct unfinished shell space.North Richland Hills is a much larger building. It's total size is 182,000 SF. This creates an economy of scale that results in a lower per SF costPage 1 of 2Copyright Randall Scott Architects, Inc. September 22, 2015
PROSPER TOWN HALL/MULTI-PURPOSE BUILDINGPRELIMINARY COST COMPARISON*September 22, 2015 Building Area (SF) Assumed Current Cost ($/SF)** Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Building Area (SF) Assumed Current Cost ($/SF) Total Current Cost ($) Town Hall Cost ExamplesClass B Office Building*** Year 2020 Building Scope + Finished Space to total 50,000 SF Based on 2015 R. S. Means Data Based on 2015 R. S. Means Data RSA Estimating Consultant North Richland Hills C. H. 6 Year 2020 Building Scope + Finished Space to total 50,000 SF 7 4 Year 2020 Building Scope + Finished Space to total 50,000 SF 5 Year 2020 Building Scope + Finished Space to total 50,000 SF Based on Needs Assessment Year 2020 Building Scope + Finished Space to total 50,000 SF 3 ON-SITE RELATED COSTSON-SITE INFRASTRUCTURE COSTSLandscape/Flatwork10.08$ 504,188$ 75,000 5.00$ 375,000$ 675,000 5.00$ 375,000$ 6Site Fence-$ -$ -$ LEED Enhancements-$ -$ -$ On-Site Water Detention-$ -$ -$ Site Development/Parking36.30$ 1,815,000$ 177,500 12.00$ 2,130,000$ 13177,500 12.00$ 2,130,000$ 13Franchise Utility Impact Fees-$ -$ -$ SUBTOTAL46.38$ 2,319,188$ 17.00$ 2,505,000$ 17.00$ 2,505,000$ ON-SITE COST CONTINGENCY @ 7%174.64$ 231,919$ 1.19$ 175,350$ 1.19$ 175,350$ SUBTOTAL ON-SITE COSTS51.02$ 2,551,106$ 18.19$ 2,680,350$ 18.19$ 2,680,350$ ON-SITE RELATED ESCALATIONYear 20148% 4.08$ 185,535$ Year 20157% 3.86$ 175,331$ 5% 0.85$ 125,250$ 5% 0.85$ 125,250$ Year 2016 to March (bid date)167% 4.13$ 187,604$ 2.5% 0.45$ 65,756$ 2.5% 0.45$ 65,756$ TOTAL ON-SITE COSTS63.09$ 3,099,576$ 19.49$ 2,871,356$ 19.49$ 2,871,356$ TOTAL ALL BUILDING AND ON-SITE COSTSTOTAL ALL BUILDING RELATED COST FROM ABOVE336.29$ 16,814,608$ 264.44$ 12,030,059$ 254.48$ 11,531,997$ TOTAL ALL ON-SITE RELATED COST FROM ABOVE63.09$ 3,099,576$ 19.49$ 2,871,356$ 19.49$ 2,871,356$ CONSTRUCTION MANAGER'S PRE-CONSTRUCTION FEE0.15$ 7,500$ 0.15$ 7,500$ 0.15$ 7,500$ 0.15$ 7,500$ 0.15$ 7,500$ SUBTOTAL363.34$ 18,167,000$ 325.44$ 16,272,000$ ESCALATION FOR ESTIMATES 5 AND 6Year 20146% 19.53$ 976,320$ Year 20155% 18.17$ 908,350$ 5% 17.25$ 862,416$ Year 2016 to March (bid date)162.5% 9.54$ 476,884$ 2.5% 9.06$ 452,768$ TOTAL BUILDING AND ON-SITE COSTS399.53$ 19,921,684$ 283.93$ 14,901,415$ $ 391.04 $ 19,552,234 $ 371.27 $ 18,563,504 273.96$ 14,403,353$ 363.19$ 18,159,500$ See belowCONSTRUCTION COSTS16,264,500$ On-site related costs are included in the Sub-Total provided aboveOn-site related costs are included in the Sub-Total provided above325.29$ The column bolow is a combination of Building and On-Site costsThe column bolow is a combination of Building and On-Site costsSee belowPage 2 of 2Copyright Randall Scott Architects, Inc. September 22, 2015