Somerville, MA
Somerville issued 3,012 building permits in 2025 worth over $98M in construction value.
Permits (2025)
3,012
building permits issued
Total Value
$ 98,000,000
in construction value
Median Permit
$ 4,900
typical project cost
Population
81,360
Middlesex County
Housing Units
36,000
40% homeownership
Median Built
1921
year home built
Permit Volume — 5-Year Trend
Year-over-year building permit activity in Somerville.
Permit Breakdown by Type
Electrical, building, plumbing, and mechanical permits issued in 2025.
| Type | Count | Share | Median | Average | Common Range |
|---|---|---|---|---|---|
| Electrical | 1,025 | 34 | $3K | $4K | $1,200–$5,500 |
| Building | 905 | 30 | $24K | $38K | $10,000–$70,000 |
| Plumbing | 725 | 24 | $5K | $6K | $2,000–$8,500 |
| Mechanical/HVAC | 357 | 12 | $8K | $10K | $4,000–$15,000 |
Top Contractors in Somerville
Most active contractors by permit count in 2025.
| Contractor | Permits | Avg Value | Most Common |
|---|---|---|---|
| Maggiore Construction | 210 | $28,000 | Building |
| Bamonte Electric Inc | 175 | $3,400 | Electrical |
| F.J. LeSage Plumbing & Heating | 110 | $4,800 | Plumbing |
| Century Plumbing & Heating | 88 | $5,500 | Plumbing |
| Ducey Heating & Sheet Metal | 72 | $7,800 | Mechanical/HVAC |
Housing Stock
House Styles
Age Distribution
Energy Rebates & Incentives
Available programs for Somerville homeowners.
Heat Pump Rebate
Up to $10,000Provider: Mass Save
Eligibility: Oil/propane to heat pump conversion
Multifamily Weatherization
Up to $15,000Provider: Somerville Community Corp
Eligibility: Income-eligible Somerville residents
Electrical Panel Upgrade Rebate
Up to $2,000Provider: National Grid
Eligibility: Single and multi-family
Nearby Towns
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Frequently Asked Questions
How many building permits were issued in Somerville MA in 2025?
3,012 permits were issued in Somerville, MA in 2025, with a total construction value of $98M. Electrical permits were the most common at 1,025, reflecting the city's aging infrastructure.
How old is the average home in Somerville MA?
Somerville has the oldest housing stock in Massachusetts with a median year built of 1921 — over 104 years old. Nearly 60% of homes were built before 1940.
What is the most common house style in Somerville MA?
Triple deckers are the most iconic and common housing style in Somerville at 35% of all housing units. Two-family homes account for 18%, and Victorians for 15%.