Longmont, CO Development Impact Fees (2026)
Normalized development impact fees, water & sewer connection (tap/SDC) fees, and mitigation fees for Longmont, Colorado — per dwelling unit, by category, with links to every official source.
What a single-family home pays in Longmont
$27,021 total per unit across 6 fee categories.
- Parks & recreation$9,040
- Water connection (tap / SDC)$6,656
- Sewer connection (tap / SDC)$5,937
- Transportation / roads$2,205
- Drainage / stormwater$1,694
- Schools$1,489
At $27,021, Longmont is below the Colorado tracked median of $38,504 — relatively affordable to build in.
Full fee schedule — single-family
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads Transportation Impact Fee (residential, 1,601-2,400 sq ft tier) — Representative ~2,000-2,400 sq ft single-family tier (Fee Manual p.7, Municipal Code 14.38). Tiered by unit square footage: 800 or less $1,286.75; 801-1,600 $1,866.84; 1,601-2,400 $2,204.87; 2,401-3,200 $2,444.15; 3,201-4,000 $2,629.16; 4,000+ $2,782.18. VERIFIED verbatim p.7 of FY2026 Fee Manual. | per dwelling unit | $2,205 | City of Longmont, CO Jan 1, 2026High |
Transportation / roads Transportation Impact Fee (residential, 2,401-3,200 sq ft tier) — Larger-home tier reference row (Fee Manual p.7). Mutually-exclusive size tier alternative to the 1,601-2,400 primary. VERIFIED verbatim. alternative · not added to total | per dwelling unit | $2,444 | City of Longmont, CO Jan 1, 2026High |
Parks & recreation Recreation Buildings Impact Fee (residential, 1,601-2,400 sq ft tier) — Separate from Park Improvement Fee; funds recreation buildings (Fee Manual p.8). Representative ~2,000-2,400 sq ft tier. Tiered: 800 or less $826.75; 801-1,600 $1,334.33; 1,601-2,400 $1,621.56; 2,401-3,200 $1,784.11; 3,201-4,000 $1,984.79; 4,001+ $2,113.95. VERIFIED verbatim p.8. | per dwelling unit | $1,622 | City of Longmont, CO Jan 1, 2026High |
Parks & recreation Park Improvement Fee (per single-family detached unit) — Flat per single-family detached unit (Fee Manual p.8). 'Per other residential' (attached/multifamily) is $3,639.14. VERIFIED verbatim p.8. | per dwelling unit | $7,419 | City of Longmont, CO Jan 1, 2026High |
Drainage / stormwater Storm Drainage Fee (residential single-family, per permit) — Flat per single-family permit (Fee Manual p.8, Municipal Code 14.24.050). Multi-family/non-residential is charged $0.7538/sq ft of impervious lot area instead. VERIFIED verbatim p.8. | per dwelling unit | $1,694 | City of Longmont, CO Jan 1, 2026High |
Schools St. Vrain Valley School District Cash-in-Lieu (single family) - SEPARATE DISTRICT — Levied by the SEPARATE St. Vrain Valley School District (not the City), but the City of Longmont REQUIRES proof of payment before issuing any building permit for a new residential unit (Fee Manual p.14 confirms the IGA / Ord. O-2016-40 but does NOT list the dollar amount - it directs to the SVVSD website). Cash-in-Lieu of land dedication. Single-family $1,489; Duplex/Triplex $1,031; Multi-family $714; Condo/Townhome $434; Mobile Home $960. Per the SVVSD CIL cheat sheet (Longmont row, land value basis $100,092, Updated 6/2016). Medium confidence: figure is on an official district document but the cheat sheet reflects a 2016 update; confirm current amount with SVVSD before relying. VERIFIED verbatim on SVVSD CIL Cheat Sheet (sourceIndex 3). | per dwelling unit | $1,489 | St. Vrain Valley School District Jun 1, 2016Mediumdated 2016 |
Water & sewer connection fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Water connection (tap / SDC) Water System Development Fee (5/8" meter, inside city) — Standard residential 5/8" meter (the City confirms 'The typical residential customer has a 5/8-inch meter' on its Water Rates page, sourceIndex 2), inside-city rate (Fee Manual p.13, Municipal Code 14.04.160-200). PLUS a variable $0.58 per sq ft of gross LOT size, not captured in this base amount. Outside-city alternative is $7,585.94 (excluded variant below). Does NOT include Windy Gap Surcharge (separate additive row) or Wastewater (separate). VERIFIED verbatim p.13; 5/8" standard cross-confirmed on Water Rates webpage. | per meter | $4,664 | City of Longmont, CO Jan 1, 2026High |
Water connection (tap / SDC) Windy Gap Surcharge / Water Resources Charge (5/8" residential) — ADDITIVE raw-water/water-resources (Windy Gap) capacity surcharge charged on top of the base Water System Development Fee at permit (Fee Manual p.13, Municipal Code 14.04.210). 5/8" residential. NOT excluded - it is in addition to the water SDF. VERIFIED verbatim p.13 (Windy Gap Surcharge column, Residential 5/8"). | per meter | $1,620 | City of Longmont, CO Jan 1, 2026High |
Sewer connection (tap / SDC) Wastewater System Development Fee (5/8" residential) — Sewer capacity/connection fee, standard residential 5/8" meter (Fee Manual p.13, Municipal Code 14.08.605-610). Charged by water meter size. 3/4" residential variant is $8,911.13 (excluded variant below). VERIFIED verbatim p.13. | per meter | $5,937 | City of Longmont, CO Jan 1, 2026High |
Water connection (tap / SDC) Water Meter Fee (5/8") — Physical meter purchase for standard 5/8" residential meter (Fee Manual p.12, Municipal Code 14.04.290-380). A separate 15% warehouse handling fee of $55.80 applies on top, plus a Water Tapping Material Fee of $68.45 (5/8"). Small relative to the SDFs. VERIFIED verbatim p.12. | per meter | $372 | City of Longmont, CO Jan 1, 2026High |
Water connection (tap / SDC) Water System Development Fee (3/4" meter variant, inside city) — Mutually-exclusive larger residential meter variant (3/4") of the 5/8" primary (Fee Manual p.13). For a 3/4" residential connection: Windy Gap $2,440, Wastewater $8,911.13. Excluded to avoid double-count; 5/8" is the standard residential meter. VERIFIED verbatim p.13. alternative · not added to total | per meter | $7,002 | City of Longmont, CO Jan 1, 2026High |
Water connection (tap / SDC) Water System Development Fee (5/8" meter, OUTSIDE city variant) — Mutually-exclusive service-area variant of the inside-city 5/8" primary (Fee Manual p.13). Applies only to connections outside city limits. Excluded. VERIFIED verbatim p.13. alternative · not added to total | per meter | $7,586 | City of Longmont, CO Jan 1, 2026High |
Sewer connection (tap / SDC) Wastewater System Development Fee (3/4" meter variant) — Wastewater SDF at the larger 3/4" residential meter (Fee Manual p.13). Mutually-exclusive meter-size variant of the 5/8" primary. Excluded. VERIFIED verbatim p.13. alternative · not added to total | per meter | $8,911 | City of Longmont, CO Jan 1, 2026High |
Full fee schedule — multifamily
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads Transportation Impact Fee (multifamily, per unit) - Pre-existing PIA agreements only — This is the LEGACY pre-existing Public Improvement Agreement (PIA) transportation rate (Municipal Code 14.38.090) that applies only to specific older developments, NOT the standard multifamily transportation fee. The standard Fee Manual transportation table (p.7) is published only as per-residential-unit by square footage and per-sq-ft for non-residential; a separate standard multifamily per-unit transportation figure is not clearly published. Marked low confidence / excluded to avoid misuse. VERIFIED verbatim p.7 (Pre-Existing Development Agreement Transportation Fees, Section 14.38.030). alternative · not added to total | per dwelling unit | $233 | City of Longmont, CO Jan 1, 2026Low |
Parks & recreation Park Improvement Fee (per other residential / multifamily unit) — Park Improvement Fee for non-single-family-detached residential (attached/multifamily), per unit (Fee Manual p.8). Separate land use, not a variant - not excluded. VERIFIED verbatim p.8. | per dwelling unit | $3,639 | City of Longmont, CO Jan 1, 2026High |
Schools St. Vrain Valley School District Cash-in-Lieu (multifamily) - SEPARATE DISTRICT — SVVSD Cash-in-Lieu per multifamily unit (Condo/Townhome is $434). Required before City building permit issuance. Same caveats as the single-family school row. VERIFIED verbatim on SVVSD CIL Cheat Sheet (Longmont row). | per dwelling unit | $714 | St. Vrain Valley School District Jun 1, 2016Mediumdated 2016 |
Water & sewer connection fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Water connection (tap / SDC) Water System Development Fee (multifamily, first 4 units, per unit) — Multifamily water SDF is tiered by unit count per project (declining marginal rate). 'First 4 units' rate $3,526.89/unit is the representative top-tier per-unit figure (Fee Manual p.13). Declining tiers: Next 8 units $2,311.26; Next 22 $1,482.75; Next 29 $1,349.14; 64+ $708.51 per unit. Per-unit Windy Gap ($720) and Wastewater ($4,497.30) for the first-4 tier are captured in separate multifamily rows below. VERIFIED verbatim p.13. | per dwelling unit | $3,527 | City of Longmont, CO Jan 1, 2026High |
Water connection (tap / SDC) Windy Gap Surcharge (multifamily, first 4 units, per unit) — ADDITIVE Windy Gap water-resources surcharge per multifamily unit, first-4-units tier (Fee Manual p.13). Declining tiers: Next 8 $470; Next 22 $300; Next 29 $270; 64+ $130. VERIFIED verbatim p.13. | per dwelling unit | $720 | City of Longmont, CO Jan 1, 2026High |
Sewer connection (tap / SDC) Wastewater System Development Fee (multifamily, first 4 units, per unit) — Multifamily wastewater SDF per unit, first-4-units tier (Fee Manual p.13). Declining tiers: Next 8 $2,942.55; Next 22 $1,878.22; Next 29 $1,721.71; 64+ $939.11 per unit. The combined first-4-units total (water+windy gap+wastewater) = $8,744.19/unit. VERIFIED verbatim p.13. | per dwelling unit | $4,497 | City of Longmont, CO Jan 1, 2026High |
Coverage & caveats
PRIMARY SOURCE: City of Longmont Planning & Development Services Fee Manual FY2026 (rev. 3-24-2026), the current adopted authoritative document, pages 7-14. Water-meter standard (5/8" for typical residential) independently confirmed on the City's Water Rates and Fees webpage. School cash-in-lieu confirmed on the St. Vrain Valley School District CIL cheat sheet. High confidence on all City fees; medium on the school-district figures (2016 update date). WHAT EXISTS (residential, City of Longmont): Transportation Impact Fee (tiered by home sq ft), Recreation Buildings Impact Fee (tiered by sq ft - parks category), Park Improvement Fee (flat per unit), Storm Drainage Fee (flat per SF permit). Water/Wastewater System Development Fees (SDFs / tap-capacity fees), charged by water-meter size, plus an additive Windy Gap Surcharge (raw-water/water-resources capacity). For a standard 5/8"-meter single-family home inside the city: Water SDF $4,664.26 (+ $0.58/sq ft of gross LOT size) + Windy Gap $1,620 + Wastewater SDF $5,937.28. NOTE the water SDF has a variable lot-size component ($0.58/sq ft of gross lot) NOT included in the base number. NORMALIZATION: (1) Single-family impact-fee primary rows use the 1,601-2,400 sq ft tier as the representative ~2,000-2,400 sq ft home (Transportation, Recreation Buildings); the 2,401-3,200 tier is an excluded reference row. Park Improvement and Storm Drainage are flat per SF unit/permit. (2) Water/Wastewater/Windy Gap primary rows use the standard residential 5/8" meter, inside-city. The 3/4" meter and the Outside-City variants are excluded mutually-exclusive variants. (3) Windy Gap Surcharge is ADDITIVE (charged on top of the water SDF), so it is included, not excluded. (4) Multifamily rows are a separate land-use group (per dwelling unit); the 'first 4 units' marginal per-unit rate is the representative tier. WHAT DOES NOT EXIST as a City impact fee here: (a) NO City-levied school impact fee - the SEPARATE St. Vrain Valley School District levies a Cash-in-Lieu of land dedication which the City requires be paid before building-permit issuance (IGA, Ord. O-2016-40; confirmed p.14 of the Fee Manual, which references the IGA but does NOT list amounts and directs to the SVVSD website). (b) NO standalone City fire/police/library/open-space/general/affordable-housing impact fee is published in the Fee Manual. (c) NO separate water/sewer special district - the City of Longmont is the water and wastewater utility itself. VERIFY: confirmed 20 of 20 rows; dropped 0. All 4 source URLs re-fetched live on 2026-06-17 and every amount confirmed verbatim against its cited source: City fees from the FY2026 Fee Manual PDF via pdftotext -layout (Transportation 1,601-2,400 $2,204.87 / 2,401-3,200 $2,444.15 p.7; Recreation Buildings 1,601-2,400 $1,621.56 p.8; Park Improvement SFD $7,418.75 / Other residential $3,639.14 p.8; Storm Drainage SF $1,693.53 p.8; Water Meter 5/8" $372 + $55.80 handling p.12; Water SDF 5/8" inside $4,664.26 / outside $7,585.94, 3/4" inside $7,001.60; Windy Gap 5/8" $1,620 / 3/4" $2,440; Wastewater 5/8" $5,937.28 / 3/4" $8,911.13; Multi-Family first-4-units $3,526.89 / $720 / $4,497.30 / total $8,744.19; PIA-only Multifamily transportation $232.99 — all p.13/p.7). School CIL confirmed verbatim on the SVVSD CIL Cheat Sheet Longmont row (Single Family $1,489; Multi-family $714; Condo/Townhome $434; land value $100,092; Updated 6/2016). Supporting webpages confirmed live: City Water Rates page states "The typical residential customer has a 5/8-inch meter" (sourceIndex 2); the Permit Fees landing page links to the FY2026 Fee Manual (sourceIndex 1). excludeFromTotal corrections: NONE needed - all flags were already correct (excluded: Transportation 2,401-3,200 alt size tier, PIA-only Multifamily transportation [low confidence], Water SDF 3/4" meter variant, Water SDF 5/8" Outside-City variant, Wastewater SDF 3/4" meter variant; included: all 5/8"-inside primary rows, the additive Windy Gap surcharge, the multifamily separate-land-use rows, and the school CIL rows). Representative single-family-detached total (primary included rows only): Transportation $2,204.87 + Recreation $1,621.56 + Park $7,418.75 + Storm Drainage $1,693.53 + Water SDF $4,664.26 + Windy Gap $1,620 + Wastewater $5,937.28 + Water Meter $372 + SVVSD CIL $1,489 = ~$27,021.25 (+ $0.58/sq ft of gross lot for the water SDF), internally consistent with no double-counting. Confidence retained: high on all City fees (verbatim from adopted manual), low on the PIA-only multifamily transportation row (legacy, excluded), medium on the two school CIL rows (official SVVSD document but self-dated 6/2016). Temp PDFs (/tmp/verify-longmont-co.pdf, /tmp/verify-svvsd-cil.pdf) removed after extraction.
All City figures from the City of Longmont Planning & Development Services Fee Manual FY2026 (rev. 3-24-2026), pages 7-14, independently re-verified verbatim on 2026-06-17. A representative new single-family detached home (1,601-2,400 sq ft, 5/8" meter, inside city) pays the following City impact/development fees: Transportation $2,204.87 + Recreation Buildings $1,621.56 + Park Improvement $7,418.75 + Storm Drainage $1,693.53 = $12,938.71 in development impact fees; PLUS water/sewer System Development Fees: Water SDF $4,664.26 (+ $0.58/sq ft of gross lot size) + Windy Gap water-resources surcharge $1,620 + Wastewater SDF $5,937.28 = approx $12,221.54 + lot-size component. PLUS a 5/8" water meter ($372 + $55.80 handling) and tapping materials ($68.45). SEPARATELY, the St. Vrain Valley School District requires a Cash-in-Lieu payment ($1,489 single-family) before the City will issue the building permit. Water/sewer connection charges are the largest cost block and the Windy Gap surcharge is additive on top of the base water SDF. Multifamily water/wastewater SDFs are tiered by project unit count (declining marginal rate). INDEPENDENTLY VERIFIED: all 20 rows confirmed, 0 dropped; all amounts quoted verbatim from the FY2026 Fee Manual PDF (re-downloaded and re-extracted); 5/8" standard residential meter cross-confirmed live on the City Water Rates page; school CIL from the official SVVSD CIL Cheat Sheet (Longmont row).
Sources
4 official sources · 16 high-confidence figures.
- 1City of Longmont Planning & Development Services Fee Manual, Fiscal Year 2026 (rev. 3-24-2026)City of Longmont, CO · fee schedule · effective Jan 1, 2026 · retrieved Jun 17, 2026
- 2Permit Fees (Fee Manual landing page) - City of LongmontCity of Longmont, CO · municipal webpage · retrieved Jun 17, 2026
- 3Rates and Fees - Water, Storm, Sewer (confirms typical residential customer has a 5/8-inch meter)City of Longmont, CO · municipal webpage · retrieved Jun 17, 2026
- 4St. Vrain Valley School District - Cash in Lieu of Land Dedication Payment Amounts (CIL Cheat Sheet)St. Vrain Valley School District · fee schedule · effective Jun 1, 2016 · retrieved Jun 17, 2026
Longmont impact fees — FAQ
- How much are development impact fees in Longmont, CO for a single-family home?
- As of 2026-06-17, total development fees for a single-family detached home in Longmont are about $27,021 per unit — roughly $14,428 in impact/development fees plus $12,594 in water/sewer connection fees. Figures are normalized from official sources; verify with the jurisdiction before relying on them.
- What are the impact fees per multifamily unit in Longmont, CO?
- Total development fees for a multifamily unit in Longmont are about $13,097 per unit as of 2026-06-17.
- Are impact fees in Longmont the same as building permit fees?
- No. Impact fees (and water/sewer connection fees) fund off-site capital — roads, parks, schools, utilities — and are charged per new dwelling unit. Building permit and plan-review fees are separate and are not included here.
- How often do Longmont's impact fees change?
- Most jurisdictions adopt fees by ordinance and escalate them annually (often by a construction cost index), with occasional mid-year updates. Always confirm the current adopted schedule with the jurisdiction. ImpactFeeAtlas last verified Longmont on 2026-06-17.