July 9, 2025
Development Impact Fee Comparison Survey
Methodology
Willdan collected one-time development impact fee schedules for fees charged under the Mitigation Fee Act for four comparison cities. These comparison jurisdictions are:
• American Canyon
• Petaluma
• Rohnert Park
• Santa Rosa
Willdan collected data regarding one-time fees and charges charged by the cities used to fund infrastructure and facilities related to new development. Impact fees are not standardized and are assessed by various units of development by different jurisdictions. To create a meaningful comparison of impact fees, Willdan calculated the fees for five prototype projects. Table 1 presents the project prototype assumptions used in this analysis.
Results
Tables 2 through 7 display the fee companions for each prototype, respectively. Some jurisdictions charge impact fees that vary by project location. In these cases, the tables show the range of potential impact fees.
Table 1: Prototype Assumptions
Type
Dwelling
Units
Square
Feet
Lot Size
(Acres)
Water Meter
Size
Wastewater
Meter Size
Single Family Unit - Detached 1 2,500 0.15 3/4" 3/4"
4 Bedroom
Multifamily Prototype - Apartments
2 Bedroom 20 1,000 1.5" 1.5"
Total 20 20,000 0.50
Retail/Commercial - 2,000 0.15 1" 1"
Office - 2,000 0.15 1" 1"
Industrial - 10,000 0.50 1.5" 1.5"
July 9, 2025
Table 2: Single Family Unit Prototype - 2,500 Square Feet Cotati Maximum Justified Cotati (Current) American Petaluma Rohnert Park Santa Rosa Fee Category (Low)1(High)1(Low)1, 4 (High)1,4 Canyon (Low)1(High)1(Low)1, 2 (High)1, 2 (Low)3(High)3 Bed Tax $ 462 $ 462 $ 462 $ 462 $ - $ - $ - $ - $ - $ - $ - Public/Capital Facilities3 - - - - - 7,665 7,665 27,090 42,624 9,924 9,924 Climate Action2 - - - - - - - - 308 - -
General Government - - - - 533 - - - - - -
General Plan 525 525 - - - - - - - - -
Library - - - - 1,170 - - - - - -
Open Space - - - - - 539 539 - - - -
Parks and Recreation4 30,900 30,900 12,459 12,459 7,220 9,878 9,878 - - 14,890 17,314 Police - - - - 101 - - - - - -
Public Art In Lieu5 - - - - - - - - - - -
Specific Plan Fee - 1,181 - 1,181 - - 319 - - - -
Storm Drain - - - - - 225 225 - - - -
Traffic 10,075 10,075 8,178 8,178 6,843 19,276 19,276 - 8,821 - - Wastewater 12,275 12,275 19,003 19,003 12,729 10,737 10,737 - - 7,288 7,288 Water 10,075 10,075 10,617 10,617 23,266 5,228 5,228 1,991 9,160 5,042 7,188 Water Conservation 1,750 1,750 1,750 1,750 - - - - - - - Total $ 66,062 $ 67,243 $ 52,469 $ 53,650 $ 51,862 $ 53,548 $ 53,867 $ 29,081 $ 60,913 $ 37,144 $ 41,714 Affordable Housing - - - - 8,925 - - 15,520 15,520 7,500 25,000 Total - per Prototype $ 66,062 $ 67,243 $ 52,469 $ 53,650 $ 60,787 $ 53,548 $ 53,867 $ 44,601 $ 76,433 $ 44,644 $ 66,714 1 Specific plan fees vary by geographic area.
5 Public art fee assumes public art is provided onsite. 4 Cotati current Parks and Recreation fee calculated according to the follow ing formula: (DUs x Population/DU) x (5 acres/1000 population) x (Fair Market Value/Total acres of project site) = Subtotal x 6/5 = In Lieu Fee. Assumes 3.10 residents per single family unit, and fair market value of $669,000 per acre. 3 Santa Rosa capital facilities fee includes street w idening, traffic signals, freew ay interchanges, bike paths, and storm drains. Water fees increase during severe w ater shortage. 2 Rohnert Park public/capital facilities fee listed varies w ith location of project and funds fair share costs for expansion of sew er, w ater, and public facilities. Water capacity fee charged in addition to public facilities fee.
July 9, 2025
Table 3: Multifamily Prototype - 20 Apartments
Cotati (Maximum Justified) Cotati (Current) American Petaluma Rohnert Park Santa Rosa Fee Category (Low)1(High)1(Low)1, 4 (High)1,4 Canyon (Low)1(High)1(Low)1, 2 (High)1, 2 (Low)3(High)3 Bed Tax $ 7,180 $ 7,180 $ 7,180 $ 7,180 $ - $ - $ - $ - $ - $ - $ - Public/Capital Facilities3 - - - - - 103,220 103,220 349,680 525,720 134,680 134,680 Climate Action2 - - - - - - - - 6,152 - -
General Government - - - - 10,641 - - - - - -
General Plan 4,200 4,200 - - - - - - - - -
Library - - - - 23,396 - - - - - -
Open Space - - - - - 7,220 7,220 - - - -
Parks and Recreation4 247,200 247,200 169,150 169,150 144,396 133,160 133,160 - - 223,380 247,500 Police - - - - 2,021 - - - - - -
Public Art In Lieu5 - - - - - - - - - - -
Specific Plan Fee - 3,935 - 3,935 - - 1,063 - - - -
Storm Drain - - - - - 2,250 2,250 - - - -
Traffic 80,600 80,600 163,560 163,560 88,514 236,660 236,660 - 176,434 - - Wastewater 98,200 98,200 101,291 101,291 165,480 142,180 142,180 - - 103,380 103,380 Water 80,600 80,600 35,354 35,354 302,460 5,228 5,228 20,230 128,386 68,680 101,440 Water Conservation 35,000 35,000 35,000 35,000 - - - - - - - Total $ 552,980 $ 556,915 $511,535 $515,470 $736,908 $629,918 $630,981 $369,910 $ 836,692 $530,120 $587,000 1 Specific plan fees vary by geographic area.
5 Public art fee assumes public art is provided onsite. 3 Santa Rosa capital facilities fee includes street w idening, traffic signals, freew ay interchanges, bike paths, and storm drains. Water fees increase during severe w ater shortage. 4 Cotati current Parks and Recreation fee calculated according to the follow ing formula: (DUs x Population/DU) x (5 acres/1000 population) x (Fair Market Value/Total acres of project site) = Subtotal x 6/5 = In Lieu Fee. Assumes 2.11 residents per multifamily unit and fair market value of $669,000 per acre. 2 Rohnert Park public/capital facilities fee listed varies w ith location of project and funds fair share costs for expansion of sew er, w ater, and public facilities. Water capacity fee charged in addition to public facilities fee.
July 9, 2025
Table 4: Retail/Commercial Prototype - 2,000 Square Feet Cotati Maximum Justified Cotati (Current) American Petaluma Rohnert Park Santa Rosa Fee Category (Low)1(High)1(Low)1, 4 (High)1,4 Canyon (Low)1(High)1(Low)1, 2 (High)1, 2 (Low)3(High)3 Bed Tax $ - $ - $ - $ - $ - $ - $ - $ - $ - $ - $ -
Commercial Linkage 8,880 8,880 8,880 8,880 1,820 12,000 12,000 2,380 2,380 6,000 6,000 Public/Capital Facilities3 - - - - - 2,902 2,902 37,432 39,964 28,890 28,890 General Government - - - - 399 - - - - - -
General Plan 180 180 - - - - - - - - -
Library - - - - 352 - - - - - -
Open Space - - - - - 208 208 - - - -
Parks and Recreation4 - - - - 82 3,744 3,744 - - - -
Police - - - - 82 - - - - - -
Public Art In Lieu5 - - - - - - - - - - -
Specific Plan Fee - 1,181 - 1,181 - - 319 - - -
Storm Drain - - - - - 1,013 1,013 - 2,683 - -
Traffic 29,120 29,120 17,262 17,262 52,680 74,494 74,494 - - - - Wastewater5 7,080 7,080 31,737 31,737 8,184 5,225 5,225 22,256 37,896 15,332 15,332 Water6 5,260 5,260 17,764 17,764 11,049 8,728 8,728 2,657 15,844 8,400 12,682 Water Conservation 344 344 344 344 - - - - - - -
Total - per Prototype $ 50,864 $ 52,045 $ 75,987 $ 77,168 $ 74,648 $ 108,314 $ 108,633 $ 64,725 $ 98,767 $ 58,622 $ 62,904 1 Specific plan fees vary by geographic area.
4 Public art fee assumes public art is provided onsite. 5 Where applicable, w astew ater fees assume 115 gallons per 1,000 square feet per day. 6 Where applicable, w ater fees assume 155 gallons per 1,000 square feet per day. 2 Public/capital facilities fee listed varies w ith location of project and includes transportation infrastructure, public safety infrastructure, public w orks facilities and community facilities. 3 Santa Rosa capital facilities fee includes street w idening, traffic signals, freew ay interchanges, bike paths, and storm drains. Water fees increase during severe w ater shortage.
July 9, 2025
Table 5: Office Prototype - 2,000 Square Feet
Cotati Maximum Justified Cotati (Current) American Petaluma Rohnert Park Santa Rosa Fee Category (Low)1(High)1(Low)1, 4 (High)1,4 Canyon (Low)1(High)1(Low)1, 2 (High)1, 2 (Low)3(High)3 Bed Tax $ - $ - $ - $ - $ - $ - $ - $ - $ - $ - $ -
Commercial Linkage 5,140 5,140 5,140 5,140 1,820 6,940 6,940 1,380 1,380 6,000 6,000 Public/Capital Facilities2,3 - - - - - 2,772 2,772 24,920 28,906 15,820 15,820 Climate Action - - - - - - - - - - -
General Government - - - - 809 - - - - - -
General Plan 280 280 - - - - - - - - -
Library - - - - 560 - - - - - -
Open Space - - - - - 196 196 - - - -
Parks and Recreation4 - - - - 146 3,578 3,578 - - - -
Police - - - - 206 - - - - - -
Public Art In Lieu5 - - - - - - - - - - -
Specific Plan Fee - 1,181 - 1,181 - - 319 - - - -
Storm Drain - - - - - 1,013 1,013 - 2,683 - -
Traffic4 30,520 30,520 11,644 11,644 12,004 50,926 50,926 - - - - Wastewater5 7,080 7,080 31,737 31,737 8,184 5,225 5,225 22,256 37,896 15,332 15,332 Water6 5,260 5,260 17,764 17,764 11,049 8,728 8,728 2,657 15,844 8,400 12,682 Water Conservation 344 344 344 344 - - - - - - -
Total - per Prototype $ 48,624 $ 49,805 $ 66,629 $ 67,810 $ 34,778 $ 79,378 $ 79,697 $ 51,213 $ 86,709 $ 45,552 $ 49,834 1 Specific plan fees vary by geographic area.
4 Public art fee assumes public art is provided onsite. 5 Where applicable, w astew ater fees assume 115 gallons per 1,000 square feet per day. 6 Where applicable, w ater fees assume 155 gallons per 1,000 square feet per day. 2 Public/capital facilities fee listed varies w ith location of project and includes transportation infrastructure, public safety infrastructure, public w orks facilities and community facilities. 3 Santa Rosa capital facilities fee includes street w idening, traffic signals, freew ay interchanges, bike paths, and storm drains. Water fees increase during severe w ater shortage.
July 9, 2025
Table 6: Industrial Prototype - 10,000 Square Feet
Cotati Maximum Justified Cotati (Current) American Petaluma Rohnert Park Santa Rosa Fee Category (Low)1(High)1(Low)1, 4 (High)1,4 Canyon (Low)1(High)1(Low)1, 2 (High)1, 2 (Low)3(High)3 Bed Tax $ - $ - $ - $ - $ - $ - $ - $ - $ - $ - $ -
Commercial Linkage 44,400 44,400 44,400 44,400 5,900 35,700 35,700 7,100 7,100 30,000 30,000 Public/Capital Facilities - - - - - 8,830 8,830 40,120 44,720 48,100 48,100 Climate Action - - - - - - - - - - -
General Government - - - - 1,475 - - - - - -
General Plan 500 500 - - - - - - - - -
Library - - - - 1,030 - - - - - -
Open Space - - - - - 630 630 - - - -
Parks and Recreation4 - - - - 100 11,400 11,400 - - - - Police - - - - 520 - - - - - -
Public Art In Lieu5 - - - - - - - - - - -
Specific Plan Fee - 3,935 - 3,935 - - 1,063 - - - -
Storm Drain - - - - - 4,500 4,500 - 8,942 - -
Traffic 88,400 88,400 47,480 47,480 26,966 150,770 150,770 - - - - Wastewater5 14,200 14,200 63,282 63,282 6,549 4,181 4,181 17,810 30,325 12,371 12,371 Water6 10,900 10,900 35,354 35,354 9,002 17,403 17,403 2,143 12,778 18,415 21,904 Water Conservation 689 689 689 689 - - - - - - -
Total - per Prototype $ 159,089 $ 163,024 $ 191,205 $195,140 $ 51,542 $233,414 $ 234,477 $ 67,173 $ 103,865 $ 108,886 $ 112,375 1 Specific plan fees vary by geographic area.
4 Public art fee assumes public art is provided onsite. 5 Where applicable, w astew ater fees assume 18 gallons per 1,000 square feet per day. 6 Where applicable, w ater fees assume 25 gallons per 1,000 square feet per day. 2 Public/capital facilities fee listed varies w ith location of project and includes transportation infrastructure, public safety infrastructure, public w orks facilities and community facilities. 3 Santa Rosa capital facilities fee includes street w idening, traffic signals, freew ay interchanges, bike paths, and storm drains. Water fees increase during severe w ater shortage.