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

The average room addition in Quincy, MA costs $135,555 in 2026. Costs range from $52,716 for a basic project to $301,233 for a high-end renovation. Quincy is 51% more expensive than the national average of $90,000.

What is the labor rate for contractors in Quincy?

The average contractor labor rate in Quincy, MA is $49.27/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 $67,778 in Quincy.

Are materials more expensive in Quincy?

Quincy has a material cost index of 137 (national average = 100). Materials cost about 37% more than the national average. For a room addition, materials account for 50% of the cost, approximately $67,778.

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

Yes, a room addition typically requires building permits in Quincy, MA. The average permit cost in Quincy is $2,439. Always confirm requirements with the Quincy building department before starting work.

Is a room addition a good investment in Quincy?

A room addition provides an estimated 55% ROI nationally. In Quincy, where the median home price is $570,160, this project costs about 23.8% 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 Quincy, MA — Costs $52,716 to $301,233

What does room addition cost in Quincy? Average $135,555, ranging $52,716–$301,233. Labor runs $49.27/hr locally — 51% above the national average. Free breakdown with material + labor split.

Quincy, MA Market

+51% vs national

Labor Rate

$49.27/hr

Material Index

137

Avg Permit Cost

$2,439

Median Home Price

$570,160

Quincy is a mid-sized city in Massachusetts with a healthy pool of local contractors. Homeowners generally have several options to compare for a room addition, which helps keep pricing competitive. At 51% above the national average, Quincy is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $570,160, this room addition represents just 23.8% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$52,716

National: $35,000

Mid-Range

$135,555

National: $90,000

High End

$301,233

National: $200,000

Per Sq Ft

$301

National: $200

Duration: 3-6 months

DIY: Hard

Permits: Required

ROI: 55%

Room Addition Cost Calculator for Quincy

Adjusted for Quincy's labor rate ($49.27/hr) and material costs (index 137).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

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

Estimated Total in Quincy

$135,555

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

Local Cost Breakdown

Labor (50%)$67,778

At Quincy's average rate of $49.27/hr (64% above national avg)

Materials (50%)$67,778

Material cost index 137 (37% above national baseline of 100)

Room Addition vs. Home Value in Quincy

Metric	Quincy	National Avg
Room Addition (Mid-Range)	$135,555	$90,000
Median Home Price	$570,160	$350,000
Project as % of Home Value	23.8%	25.7%
Estimated ROI	55%	55%
Median Household Income	$102,265	$75,000

What Affects the Price in Quincy

1Local labor rates ($49.27/hr in Quincy)
2Material cost index (137 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 Quincy, MA

Second Story Addition

$301,233

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$225,925

HardROI 80%

Swimming Pool Installation

$96,131

HardROI 40%

Garage Addition

$82,839

HardROI 65%

Home Addition

$119,404

MediumROI 60%

Inground Swimming Pool

$95,246

HardROI 43%

Attic Conversion

$83,588

HardROI 64%

Swimming Pool Construction

$75,989

Professional OnlyROI 43%

Room Addition in Other Massachusetts Cities

Boston, MA

$145,215

+7%Pop. 675,647

Worcester, MA

$127,410

-6%Pop. 206,518

Springfield, MA

$121,380

-10%Pop. 155,929

Cambridge, MA

$146,265

+8%Pop. 118,403

Lowell, MA

$123,045

-9%Pop. 115,554

Brockton, MA

$120,840

-11%Pop. 105,643

New Bedford, MA

$127,110

-6%Pop. 101,079

Lynn, MA

$119,955

-12%Pop. 99,989

Planning a Room Addition in Quincy

Building permits are typically required for a room addition in Quincy. The average permit fee in this area is $2,439, 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 Quincy, skilled contractors charge an average of $49.27/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

With a median household income of $102,265, many Quincy residents can budget for this project through savings. The mid-range cost of $135,555 represents 133% of the typical household's annual income.

Room Addition — National Guide

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

All Construction Costs in Quincy

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