Fairfax County Unincorporated Area, VA
Prototype: 2,000 sq ft single-family detached, 3 bed / 2 bath, 3/4-inch water meter, 400 sq ft garage.
Impact fees verified. Not a full total. Searched 2026-11-09 (lane A, 2nd look): Fairfax Water rate schedule adopted 4-1-2026 stored (src 784: availability charge $5,090 single-family 5/8-inch, service connection $1,960 installed by Fairfax Water, $50 account charge). County sewer availability charge $9,218 FY2026 and $9,398 FY2027 only in the advertised budget (adoption unconfirmed). Land Development Services Appendix Q (amended May 5 2026, per sq ft by construction type, base $141.75) not fetched, construction-type rate unverified. Retry: fetch Appendix Q and the adopted FY2027 sewer budget.
Water/sewer provider:
| Line | Printed rate | Prototype | Receipt |
|---|---|---|---|
| Water availability charge, single-family residence, 5/8 inch meter water | $ 5,090 per new single-family service connection | $5,090 | Printed Effective 2026-04-01 Source · Fairfax County Water Authority Schedule of Rates, Fees, and Charges (adopted December 11, 2025, effective April 1, 2026), Schedule No. 1 Availability Charge fetched 2026-11-09, sha256 4baa02079ca8 |
| Water service connection charge, 5/8 inch (installed by Fairfax Water) water | $1,960 per 5/8 inch service installed by Fairfax Water | $1,960 | Printed Effective 2026-04-01 Source · Fairfax County Water Authority Schedule of Rates, Fees, and Charges (adopted December 11, 2025, effective April 1, 2026), Schedule No. 3 Service Connection Charge fetched 2026-11-09, sha256 4baa02079ca8 |
| Sewer availability charge, single family sewer | $9,398 per single-family home | $9,398 | Printed (FY 2027 adopted) Effective 2026-07-01 Source · Fairfax County FY 2027 Adopted Budget, Fund 69000: Sewer Revenue, Availability Charges fetched 2026-11-09, sha256 19eb91ff31d3 |
| Building permit, new residential building, Type VB permit · computed | $0.15 per square foot (Type IIB, IIIB, VA, VB) per sq ft of all floors including basements and horizontally projected roof areas | $360 | $0.15 x 2,400 sq ft (2,000 + 400 garage, all floors) = 360.00 Effective 2026-07-01 Source · Fairfax County Land Development Services Fee Schedule (Appendix Q, amendment effective July 1, 2026), Table 1 Residential Fees fetched 2026-11-09, sha256 89509311e9c3 |
| Code Academy levy on building development fees permit · computed | 2.0% percent of building fee | $7.20 | 2% x 360.00 = 7.20 Effective 2026-07-01 Source · Fairfax County Land Development Services Fee Schedule (Appendix Q, amendment effective July 1, 2026) fetched 2026-11-09, sha256 89509311e9c3 |
| New residential single-family detached plumbing installation, Level One (1-29 fixtures) permit | $ 357.00 per dwelling | $357 | Printed (Level One assumed) Effective 2026-07-01 Source · Fairfax County Land Development Services Fee Schedule (Appendix Q, amendment effective July 1, 2026), Plumbing Installation Fees fetched 2026-11-09, sha256 89509311e9c3 |
Fee-change calendar
- None recorded
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