How much does a sunroom addition cost in Cambridge, MA?

The average sunroom addition in Cambridge, MA costs $64,266 in 2026. Costs range from $24,100 for a basic project to $160,665 for a high-end renovation. Cambridge is 61% more expensive than the national average of $40,000.

What is the labor rate for contractors in Cambridge?

The average contractor labor rate in Cambridge, MA is $54.31/hour, compared to the national average of $30/hour. For a sunroom addition, labor typically accounts for 45% of the total cost, which is approximately $28,920 in Cambridge.

Are materials more expensive in Cambridge?

Cambridge has a material cost index of 144 (national average = 100). Materials cost about 44% more than the national average. For a sunroom addition, materials account for 55% of the cost, approximately $35,346.

Do I need a permit for a sunroom addition in Cambridge?

Yes, a sunroom addition typically requires building permits in Cambridge, MA. The average permit cost in Cambridge is $3,017. Always confirm requirements with the Cambridge building department before starting work.

Is a sunroom addition a good investment in Cambridge?

A sunroom addition provides an estimated 48% ROI nationally. In Cambridge, where the median home price is $607,888, this project costs about 10.6% of your home value. This is a moderate investment relative to home value — focus on features that appeal to buyers in the local market.

Sunroom Addition in Cambridge, MA — Costs $24,100 to $160,665

What does sunroom addition cost in Cambridge? Average $64,266, ranging $24,100–$160,665. Labor runs $54.31/hr locally — 61% above the national average. Free breakdown with material + labor split.

Cambridge, MA Market

+61% vs national

Labor Rate

$54.31/hr

Material Index

144

Avg Permit Cost

$3,017

Median Home Price

$607,888

Cambridge is a mid-sized city in Massachusetts with a healthy pool of local contractors. Homeowners generally have several options to compare for a sunroom addition, which helps keep pricing competitive. At 61% above the national average, Cambridge 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 $607,888, this sunroom addition represents just 10.6% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$24,100

National: $15,000

Mid-Range

$64,266

National: $40,000

High End

$160,665

National: $100,000

Per Sq Ft

$209

National: $130

Duration: 2-6 weeks

DIY: Hard

Permits: Required

ROI: 48%

Sunroom Addition Cost Calculator for Cambridge

Adjusted for Cambridge's labor rate ($54.31/hr) and material costs (index 144).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

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

Estimated Total in Cambridge

$64,266

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

Local Cost Breakdown

Labor (45%)$28,920

At Cambridge's average rate of $54.31/hr (81% above national avg)

Materials (55%)$35,346

Material cost index 144 (44% above national baseline of 100)

Sunroom Addition vs. Home Value in Cambridge

Metric	Cambridge	National Avg
Sunroom Addition (Mid-Range)	$64,266	$40,000
Median Home Price	$607,888	$350,000
Project as % of Home Value	10.6%	11.4%
Estimated ROI	48%	48%
Median Household Income	$98,948	$75,000

What Affects the Price in Cambridge

1Local labor rates ($54.31/hr in Cambridge)
2Material cost index (144 vs national 100)
3Size and style (3-season vs 4-season)
4Foundation type
5Insulation (4-season)
6HVAC connection

Popular Upgrades

Four-season insulated sunroom
Heated floors
Retractable shading

Other Projects in Cambridge, MA

Second Story Addition

$325,033

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$243,775

HardROI 80%

Room Addition

$146,265

HardROI 55%

Swimming Pool Installation

$103,229

HardROI 40%

Home Addition

$128,532

MediumROI 60%

Inground Swimming Pool

$102,025

HardROI 43%

Attic Conversion

$90,403

HardROI 64%

Swimming Pool Construction

$82,184

Professional OnlyROI 43%

Sunroom Addition in Other Massachusetts Cities

Boston, MA

$63,806

-1%Pop. 675,647

Worcester, MA

$56,204

-13%Pop. 206,518

Springfield, MA

$53,632

-17%Pop. 155,929

Lowell, MA

$54,338

-15%Pop. 115,554

Brockton, MA

$53,416

-17%Pop. 105,643

Quincy, MA

$59,702

-7%Pop. 101,636

New Bedford, MA

$56,084

-13%Pop. 101,079

Lynn, MA

$52,742

-18%Pop. 99,989

Planning a Sunroom Addition in Cambridge

Building permits are typically required for a sunroom addition in Cambridge. The average permit fee in this area is $3,017, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 2-6 weeks from start to finish.

A sunroom addition is a complex project best left to licensed professionals. In Cambridge, skilled contractors charge an average of $54.31/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

With a median household income of $98,948, many Cambridge residents can budget for this project through savings. The mid-range cost of $64,266 represents 65% of the typical household's annual income.

Sunroom Addition — National Guide

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

All Construction Costs in Cambridge

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