Building Permits & Construction Cost Guide

County Permitting Hub • 80 ZIP Codes

Fairfax County, VA Building Permits & Cost Intelligence

Official residential permit requirements, inspection workflows, and local contractor wage rates across Fairfax County, Virginia for 2026.

Select Project Guide

Base Permit Fee

$204.72

Municipal Filing Tier

BLS Trade Wage

$31.00/hr

Local Labor Benchmark

Median Housing Age

39 Yrs

Built Circa 1987

Postal Zones

80

Primary: 20120

Fairfax County Project Permitting Guides

Select a residential remodeling category below to launch localized calculators, building codes, and inspection steps.

🏠 VA Standard

Roof Replacement

Complete roof replacement rules, code inspection requirements, and real-time calculator.

Base Permit: $204.72 Launch Guide →

❄️ VA Standard

HVAC System Installation

Complete hvac system installation rules, code inspection requirements, and real-time calculator.

Base Permit: $146.23 Launch Guide →

⚡ VA Standard

Electrical Panel Upgrade

Complete electrical panel upgrade rules, code inspection requirements, and real-time calculator.

Base Permit: $128.68 Launch Guide →

Fairfax County Permitting Boundary

GPS: 38.8423° N, -77.2624° W

Google Maps →

All 80 Postal Codes in Fairfax County

Dedicated Hubs

# 20120 # 20121 # 20122 # 20124 # 20151 # 20153 # 20170 # 20171 # 20172 # 20190 # 20191 # 20192 # 20193 # 20194 # 20195 # 20196 # 22003 # 22009 # 22015 # 22027 # 22032 # 22033 # 22034 # 22035 # 22036 # 22037 # 22039 # 22041 # 22042 # 22043 # 22044 # 22047 # 22060 # 22066 # 22067 # 22079 # 22081 # 22082 # 22092 # 22095 # 22096 # 22101 # 22102 # 22103 # 22106 # 22107 # 22108 # 22109 # 22116 # 22118 # 22119 # 22120 # 22121 # 22122 # 22124 # 22150 # 22151 # 22152 # 22153 # 22156 # 22158 # 22159 # 22160 # 22161 # 22180 # 22181 # 22182 # 22183 # 22184 # 22185 # 22199 # 22303 # 22306 # 22307 # 22308 # 22309 # 22310 # 22312 # 22315 # 22321

Official Authority

Fairfax County Building Inspections & Permits

Fairfax County, VA

Call (800) 555-0154 Official Permitting Portal →

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