What a Remodel or Addition Costs North of Boston
Real prices from 112 PEGASUS Design-To-Build projects built 2020–2025
Here is what homeowners paid on 112 projects we designed and built from 2020 to 2025. A kitchen that keeps its layout runs about $70,000 to $125,000; one opened up to the rooms around it runs $130,000 to $225,000. A simple bathroom runs $50,000 to $70,000. An addition with a bathroom runs $205,000 to $360,000, and an addition with a kitchen and bathroom runs $355,000 to $545,000.
What our projects cost
Ranges are the middle half of our projects from 2020 to 2025, so a quarter came in below and a quarter above. Prices include change orders.
Cost per square foot
- Additions, 150 sq ft and up, foundation included: $345 to $555 per square foot.
- Gutting and renovating existing space: $130 to $205 per square foot.
Small additions such as mudrooms and bump-outs cost more per foot, because the foundation, roof and tie-in costs are spread over less space.
What's in the price
- Included: labor, materials, permits, project management, demolition and cleanup.
- Appliances are not included. You buy them; we install them.
- Design is its own agreement, roughly 1.5% of the project budget. For a $175,000 kitchen that is about $2,600.
A fixed price, not a moving target
We design and price your project before construction starts. Your agreement is a fixed price with allowances for finishes you choose, and it changes only if you change the job or pick finishes above an allowance.
What moves a project within its range
- Opening walls: a new beam and the rooms around the kitchen.
- New foundation and roof for an addition.
- Systems: electrical service upgrades, heat pumps, new plumbing lines.
- Finishes: cabinets, counters, tile and fixtures.
How we got these numbers
Every figure comes from what homeowners paid on PEGASUS projects completed from 2020 to 2025: the signed agreement plus change orders. We group projects by what was built, not by town, because cost follows scope. A range appears only when five or more projects back it. Updated October 2026.
Get a range for your house
Tell us your town and what you're planning, and we'll show you the ranges that fit. No sales call unless you ask for one.
Common questions about remodeling costs
- How much does a kitchen remodel cost north of Boston?expand_more
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About $70,000 to $125,000 if the layout stays, and $130,000 to $225,000 if you open the kitchen to nearby rooms, based on 21 of our kitchens built 2020–2025.
- How much does a bathroom remodel cost?expand_more
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A simple bathroom runs $50,000 to $70,000. Primary baths and larger rooms run more.
- How much does a home addition cost?expand_more
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A single room of about 250 square feet starts around $100,000. Additions with a bathroom run $205,000 to $360,000, and additions with a kitchen and bathroom run $355,000 to $545,000.
- How much does a whole-house renovation cost?expand_more
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Whole-house renovations we built ran $335,000 to $550,000, with about 4–5 months of construction.
- How long does construction take?expand_more
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About 3–5 months for a kitchen, 10–15 weeks for a bathroom, 16–29 weeks for an addition and about 4–5 months for a whole house. Design takes 4–6 weeks before that.
- Are appliances and design included?expand_more
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Appliances are not included: you buy them, we install them. Design is its own agreement, roughly 1.5% of the project budget.
- Does the price change during construction?expand_more
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Only if you change the job or choose finishes above your allowances. Your agreement is a fixed price with allowances for the finishes you choose.