ADU / Guest House Cost in Massachusetts
How much does a adu / guest house cost in Massachusetts? See 2026 local labor rates, material costs, and get a free estimate.
Massachusetts Average Cost (2026)
Cost Breakdown
Based on a 500 sq ft project in the Northeast region. Actual costs vary by contractor, site conditions, and material choices.
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Rates shown are approximate averages as of 2025 and will vary based on your credit score, lender, and loan-to-value ratio. Consult a lender for an accurate quote.
Return on Investment
How much value does a adu / guest house add to your home at resale?
How ADU / Guest House compares to other projects
ROI figures based on Remodeling Magazine Cost vs. Value Report 2024, national averages. Actual resale value depends on your market, home price tier, and project quality.
Ready to Hire a ADU / Guest House Contractor?
Use your estimate to get competitive bids from licensed local contractors. Getting multiple quotes is the best way to avoid overpaying.
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Materials & Supplies
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Frequently Asked Questions
How much does a adu / guest house cost in Massachusetts?
In Massachusetts, a typical 500 sq ft adu / guest house costs between $90,000 and $210,000, with a mid-range average of $140,000. Massachusetts is in the Northeast region.
How much is labor for a adu / guest house in Massachusetts?
Labor accounts for approximately $77,000 of the total cost for a 500 sq ft adu / guest house in Massachusetts. Labor costs in the Northeast tend to run 15–25% above the national average due to high demand and union labor markets.
How do I find a contractor for a adu / guest house in Massachusetts?
Get at least 3 quotes from licensed local contractors, verify their license with Massachusetts's contractor licensing board, and check reviews on Google or the BBB. Use our free estimate tool to understand fair pricing before you negotiate.
Does a adu / guest house add value to your home in Massachusetts?
On average, a adu / guest house recoups about 75% of its cost at resale nationwide. For a $140,000 project in Massachusetts, that's approximately $105,000 in added home value. Actual ROI varies by neighborhood and market conditions.
Other Home Improvement Costs in Massachusetts
ADU / Guest House Cost in Nearby States
Get Contractor Quotes
Your estimate is already above — this is an optional next step if you want competing bids from local contractors for your adu / guest house.
Get Your Estimate
How big is your adu / guest house?
A studio ADU is ~300 sq ft. A 1-bed ADU is ~500 sq ft. A 2-bed ADU is ~700–900 sq ft.
Pro Tips
- Get at least 3 contractor quotes
- Ask about permit requirements
- Budget 10–20% contingency
- Check contractor licenses
Ready to Hire a ADU / Guest House Contractor?
Use your estimate to get competitive bids from licensed local contractors. Getting multiple quotes is the best way to avoid overpaying.