Alexandria County

Home permits and project costs in Alexandria, VA

Alexandria sits in Alexandria County, Virginia. Deep frost lines, snow load and a very old housing stock mean permits frequently touch structural, electrical and energy-code upgrades at once. Work outside city limits is permitted by the county building department rather than the city.

Model reviewed August 2026

Local cost index

+5%

vs national average

Permit fee index

+3%

vs national baseline

Population

155,525

Homeownership

Do you need a permit in Alexandria?

For most structural work, yes

Alexandria enforces virginia uniform statewide building code, based on the irc through Alexandria County. Roofing, electrical, plumbing, structural, pools and most exterior additions require a permit and inspection. Cosmetic work — paint, flooring, cabinet swaps — generally does not.

Project costs in Alexandria

National baselines adjusted by the local labor and materials index.

Project	Typical cost	Permit	Deep pages
Roof Replacement	$10,500 – $35,500	required	Cost·Permit
AC Replacement	$5,600 – $16,800	required	Cost·Permit
Fence Installation	$2,600 – $11,800	usually required	Cost·Permit
Water Heater Replacement	$1,300 – $5,900	required	Cost·Permit
Pool Installation	$41,600 – $125,800	required	Cost·Permit
Window Replacement	$8,200 – $37,300	required	Cost·Permit
Electrical Panel Replacement	$2,100 – $7,400	required	Cost·Permit
Generator Installation	$7,100 – $24,000	required	Cost·Permit
Solar Panel Installation	$16,200 – $51,900	required	Cost·Permit
Kitchen Remodel	$19,200 – $97,900	conditional	Cost·Permit
Bathroom Remodel	$9,600 – $44,700	conditional	Cost·Permit
Driveway Replacement	$4,500 – $20,500	usually required	Cost·Permit
Paver Patio & Walkway	$3,700 – $17,100	conditional	Cost·Permit
Deck Construction	$6,000 – $30,400	required	Cost·Permit
Shed Installation	$1,900 – $12,800	conditional	Cost·Permit
Whole-House Repipe	$4,900 – $17,400	required	Cost·Permit
EV Charger Installation	$900 – $4,600	required	Cost·Permit
Hurricane Shutter Installation	$3,500 – $19,900	required	Cost·Permit
Pool Enclosure / Screen Cage	$9,900 – $46,200	required	Cost·Permit
Septic System Replacement	$8,200 – $30,800	required	Cost·Permit
Impact Window Installation	$10,000 – $46,500	required	Cost·Permit
Exterior Door Replacement	$1,000 – $7,100	usually required	Cost·Permit
Garage Door Replacement	$1,500 – $8,200	required	Cost·Permit
Siding Installation	$8,700 – $41,300	usually required	Cost·Permit
Stucco Repair	$1,000 – $17,100	conditional	Cost·Permit
Soffit & Fascia Replacement	$2,000 – $12,000	conditional	Cost·Permit
Gutter Installation	$1,000 – $6,900	rarely required	Cost·Permit
Roof Repair	$400 – $5,200	conditional	Cost·Permit
Flat Roof Replacement	$6,600 – $30,900	required	Cost·Permit
Attic Insulation	$1,300 – $7,900	rarely required	Cost·Permit
Ductwork Replacement	$2,700 – $13,000	required	Cost·Permit
Mini Split Installation	$2,600 – $13,500	required	Cost·Permit
Flooring Installation	$2,600 – $21,100	rarely required	Cost·Permit
Tile Installation	$1,900 – $17,000	rarely required	Cost·Permit
Interior Painting	$1,600 – $10,100	rarely required	Cost·Permit
Exterior Painting	$3,000 – $15,900	rarely required	Cost·Permit
Drywall Repair	$400 – $4,800	rarely required	Cost·Permit
Kitchen Cabinet Refacing	$4,800 – $21,200	rarely required	Cost·Permit
Countertop Replacement	$2,300 – $12,600	rarely required	Cost·Permit
Tub to Shower Conversion	$3,800 – $17,300	usually required	Cost·Permit
Sod Installation	$1,000 – $7,400	rarely required	Cost·Permit
Irrigation System Installation	$2,300 – $10,700	conditional	Cost·Permit
Tree Removal	$500 – $5,900	conditional	Cost·Permit
Outdoor Kitchen	$6,500 – $48,500	usually required	Cost·Permit
Seawall Repair	$8,800 – $105,000	required	Cost·Permit
Dock Construction	$9,900 – $93,900	required	Cost·Permit
Well Installation	$6,000 – $27,400	required	Cost·Permit
Mold Remediation	$1,600 – $16,100	conditional	Cost·Permit
Water Softener Installation	$1,300 – $7,000	usually required	Cost·Permit
Home Addition	$49,700 – $309,100	required	Cost·Permit
Heat Pump Replacement	$7,000 – $23,800	required	Cost·Permit
Furnace Replacement	$3,500 – $12,500	required	Cost·Permit
Foundation Repair	$3,000 – $34,500	usually required	Cost·Permit
Basement Waterproofing	$3,200 – $19,200	conditional	Cost·Permit
Drain Field Replacement	$6,500 – $27,200	required	Cost·Permit
Toilet Installation	$300 – $1,200	rarely required	Cost·Permit
Hot Tub Installation	$5,900 – $23,700	usually required	Cost·Permit

Alexandria permitting basics

Jurisdiction	Alexandria, Alexandria County
Building department	Confirm with the city or county
Permit portal	No verified online portal on file
Owner-builder permits	Homeowner permits allowed on owner-occupied property
Contractor verification	Verify any license with Virginia Department of Housing and Community Development before signing

Sources

Sources & verification

Virginia Department of Housing and Community Development

Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.