Building Permits & Construction Cost Guide

County Permitting Hub • 115 ZIP Codes

Middlesex County, MA Building Permits & Cost Intelligence

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

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Base Permit Fee

$250.94

Municipal Filing Tier

BLS Trade Wage

$38.00/hr

Local Labor Benchmark

Median Housing Age

50 Yrs

Built Circa 1976

Postal Zones

115

Primary: 01431

Middlesex County Project Permitting Guides

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

🏠 MA Standard

Middlesex County

Roof Replacement

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

Base Permit: $250.94 Launch Guide →

❄️ MA Standard

Middlesex County

HVAC System Installation

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

Base Permit: $179.25 Launch Guide →

⚡ MA Standard

Middlesex County

Electrical Panel Upgrade

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

Base Permit: $157.74 Launch Guide →

Middlesex County Permitting Boundary

GPS: 42.4342° N, -71.3484° W

Google Maps →

All 115 Postal Codes in Middlesex County

Dedicated Hubs

# 01431 # 01432 # 01450 # 01460 # 01463 # 01464 # 01469 # 01470 # 01471 # 01472 # 01474 # 01701 # 01702 # 01703 # 01704 # 01705 # 01718 # 01719 # 01720 # 01721 # 01730 # 01731 # 01741 # 01742 # 01746 # 01748 # 01749 # 01752 # 01754 # 01760 # 01770 # 01773 # 01775 # 01776 # 01778 # 01784 # 01801 # 01803 # 01805 # 01806 # 01807 # 01808 # 01813 # 01815 # 01821 # 01822 # 01824 # 01826 # 01827 # 01850 # 01851 # 01852 # 01853 # 01854 # 01862 # 01863 # 01864 # 01865 # 01866 # 01867 # 01876 # 01879 # 01880 # 01886 # 01887 # 01888 # 01889 # 01890 # 02138 # 02139 # 02140 # 02141 # 02142 # 02143 # 02144 # 02145 # 02148 # 02149 # 02153 # 02155 # 02156 # 02176 # 02177 # 02180 # 02212 # 02238 # 02239 # 02420 # 02421 # 02451 # 02452 # 02453 # 02454 # 02455 # 02456 # 02458 # 02459 # 02460 # 02461 # 02462 # 02464 # 02465 # 02466 # 02467 # 02468 # 02471 # 02472 # 02474 # 02475 # 02476 # 02477 # 02478 # 02479 # 02493 # 02495

Official Authority

Middlesex County Building Inspections & Permits

Middlesex County, MA

Call (800) 555-0117 Official Permitting Portal →

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