How much does a room addition cost in Lynn, MA?

The average room addition in Lynn, MA costs $119,955 in 2026. Costs range from $46,649 for a basic project to $266,567 for a high-end renovation. Lynn is 33% more expensive than the national average of $90,000.

What is the labor rate for contractors in Lynn?

The average contractor labor rate in Lynn, MA is $44.27/hour, compared to the national average of $30/hour. For a room addition, labor typically accounts for 50% of the total cost, which is approximately $59,978 in Lynn.

Are materials more expensive in Lynn?

Lynn has a material cost index of 119 (national average = 100). Materials cost about 19% more than the national average. For a room addition, materials account for 50% of the cost, approximately $59,978.

Do I need a permit for a room addition in Lynn?

Yes, a room addition typically requires building permits in Lynn, MA. The average permit cost in Lynn is $1,592. Always confirm requirements with the Lynn building department before starting work.

Is a room addition a good investment in Lynn?

A room addition provides an estimated 55% ROI nationally. In Lynn, where the median home price is $435,000, this project costs about 27.6% of your home value. This is a significant investment relative to home value — consider carefully whether the local market supports premium renovations.

Room Addition in Lynn, MA — Costs $46,649 to $266,567

What does room addition cost in Lynn? Average $119,955, ranging $46,649–$266,567. Labor runs $44.27/hr locally — 33% above the national average. Free breakdown with material + labor split.

Lynn, MA Market

+33% vs national

Labor Rate

$44.27/hr

Material Index

119

Avg Permit Cost

$1,592

Median Home Price

$435,000

In a smaller market like Lynn, Massachusetts, the pool of contractors specializing in room addition may be more limited. Getting 3+ quotes is especially important to ensure fair pricing. At 33% above the national average, Lynn is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. The median home in Lynn is valued at $435,000, putting this project at about 27.6% of home value — a moderate investment with a projected 55% ROI.

Low Estimate

$46,649

National: $35,000

Mid-Range

$119,955

National: $90,000

High End

$266,567

National: $200,000

Per Sq Ft

$267

National: $200

Duration: 3-6 months

DIY: Hard

Permits: Required

ROI: 55%

Room Addition Cost Calculator for Lynn

Adjusted for Lynn's labor rate ($44.27/hr) and material costs (index 119).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

Mid-grade materials, good quality fixtures, standard options.

Estimated Total in Lynn

$119,955

Based on 200 sq ft at mid quality, adjusted for Lynn market rates.

Local Cost Breakdown

Labor (50%)$59,978

At Lynn's average rate of $44.27/hr (48% above national avg)

Materials (50%)$59,978

Material cost index 119 (19% above national baseline of 100)

Room Addition vs. Home Value in Lynn

Metric	Lynn	National Avg
Room Addition (Mid-Range)	$119,955	$90,000
Median Home Price	$435,000	$350,000
Project as % of Home Value	27.6%	25.7%
Estimated ROI	55%	55%
Median Household Income	$55,000	$75,000

What Affects the Price in Lynn

1Local labor rates ($44.27/hr in Lynn)
2Material cost index (119 vs national 100)
3Square footage
4Foundation type
5Number of stories
6Roof integration

Popular Upgrades

Cathedral ceiling
En-suite bathroom
Walk-in closet

Other Projects in Lynn, MA

Second Story Addition

$266,567

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$199,925

HardROI 80%

Swimming Pool Installation

$84,777

HardROI 40%

Garage Addition

$73,306

HardROI 65%

Home Addition

$105,484

MediumROI 60%

Inground Swimming Pool

$83,849

HardROI 43%

Attic Conversion

$74,091

HardROI 64%

Swimming Pool Construction

$67,356

Professional OnlyROI 43%

Room Addition in Other Massachusetts Cities

Boston, MA

$145,215

+21%Pop. 675,647

Worcester, MA

$127,410

+6%Pop. 206,518

Springfield, MA

$121,380

+1%Pop. 155,929

Cambridge, MA

$146,265

+22%Pop. 118,403

Lowell, MA

$123,045

+3%Pop. 115,554

Brockton, MA

$120,840

+1%Pop. 105,643

Quincy, MA

$135,555

+13%Pop. 101,636

New Bedford, MA

$127,110

+6%Pop. 101,079

Planning a Room Addition in Lynn

Building permits are typically required for a room addition in Lynn. The average permit fee in this area is $1,592, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 3-6 months from start to finish.

A room addition is a complex project best left to licensed professionals. In Lynn, skilled contractors charge an average of $44.27/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

For the median Lynn household earning $55,000/year, this project at $119,955 represents a significant investment. Consider financing options or phasing the work to spread costs over time.

Room Addition — National Guide

See the full national cost guide with DIY tips, cost factors, and ROI analysis.

All Construction Costs in Lynn

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