O'Fallon, IL
Prototype: 2,000 sq ft single-family detached, 3 bed / 2 bath, 3/4-inch water meter, 400 sq ft garage.
Not included: Included: residential new construction permit on the ICC cost-of-construction method x .004 = $1,521.07 (computed on the ICC valuation $380,268; the city phases in its own ICC valuation chart, the 2024 chart from May 2026, so its figure can differ), occupancy fee $20, zoning fee $35, 3/4-inch water tap $2,750 and one-family sewer tap-in charge $3,000 (City of O'Fallon IL permit fee schedule, water tap and sewer tap pages). Not included: sewer expansion and extension fee (pro rata share of construction costs, not a fixed amount), water meter, plumbing/electrical permits, fire sprinkler tap (waived for single and double dwellings). The permit fee schedule PDF carries a December 2009 revision date. Searched 2026-11-09 (lane A).
Water/sewer provider: City of O'Fallon
| Line | Printed rate | Prototype | Receipt |
|---|---|---|---|
| Residential new construction building permit (ICC cost of construction method x .004) permit · computed | value of construction (ICC Building Valuation Data) x permit fee multiplier .004; $50 minimum valuation 380,268 (ICC convention) | $1,521.07 | 380,268 x 0.004 = 1,521.07; valuation 380,268 = 175.92 x 2,000 + 71.07 x 400 Effective 2026-11-09 Source · City of O'Fallon IL Residential and Commercial Building Permit Fee Schedule (posted PDF, last updated 12/4/2009, effective Jan 1 2010) with the BVD notice of 4-13-2022 fetched 2026-11-09, sha256 6675204d8250 |
| Occupancy fee, new residential permit | $20.00 per dwelling | $20 | Printed Effective 2026-11-09 Source · City of O'Fallon IL Residential and Commercial Building Permit Fee Schedule (posted PDF, last updated 12/4/2009, effective Jan 1 2010) with the BVD notice of 4-13-2022 fetched 2026-11-09, sha256 6675204d8250 |
| Zoning fee, new residential permit | $35.00 per dwelling | $35 | Printed Effective 2026-11-09 Source · City of O'Fallon IL Residential and Commercial Building Permit Fee Schedule (posted PDF, last updated 12/4/2009, effective Jan 1 2010) with the BVD notice of 4-13-2022 fetched 2026-11-09, sha256 6675204d8250 |
| Water tap, 3/4-inch, single family residential water | $2,750 (1-inch $3,000) per tap | $2,750 | Printed 3/4-inch Effective 2026-11-09 Source · City of O'Fallon IL Water Tap Fees page (read Nov 9 2026) fetched 2026-11-09, sha256 93589bc2b6b7 |
| Sewer tap-in charge, one-family residence sewer | $3,000 per residence | $3,000 | Printed Effective 2026-11-09 Source · City of O'Fallon IL Sewer Tap Fees page (read Nov 9 2026) fetched 2026-11-09, sha256 cb44af6bb440 |
| Total listed | $7,326.07 |
Fee-change calendar
- None recorded
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