Primary suites in Melrose, Arlington and nearby towns
A primary suite on its own (bedroom, closet and private bath) typically starts around $140,000. Most of ours were part of a bigger addition, which ran about $205,000–$360,000 on our 2020–2025 jobs (the middle half, change orders included), with 16–20 weeks of construction.
What primary suites cost
Most primary suites are an addition with a new bathroom. These are the closest ranges in our cost guide, from the same table.
Bars on one scale, $0–$550k. Includes labor, materials, permits, project management and change orders.
A $275,000 addition with a bathroom, by trade
Across 18 projects like this we built from 2020 to 2025. Most of an addition is the shell: foundation, framing, roof, siding and windows. That is why carpentry leads.
A sample addition schedule, about 18 weeks on site
Before we start: 4–6 weeks of design, stamped structural plans and the building permit, and every finish picked at least 45 days ahead. The sample below is about 18 weeks.
Black = outside and rough work, gold = finishes. ◆ = a payment. Daily logs and a Friday summary in Buildertrend the whole way. Based on our standard addition schedule; your schedule is set before you sign.
Three primary suites, start to finish
Melrose Two-Story Addition with Primary Suite
Melrose Mudroom, Kitchen and Primary Bath Addition
Wakefield Attic Conversion with Primary Suite“They were on time, on budget, and so nice to work with.”
“They met their schedule deadlines and budget.”
How much does a primary suite cost in Greater Boston?
A primary suite on its own (bedroom, closet and private bath) typically starts around $140,000. Most of ours were part of a bigger addition, which ran about $205,000–$360,000 on our 2020–2025 jobs. Size, the bathroom finishes and whether the suite needs a new foundation move the price most.
How long does a primary suite take to build?
About 16–20 weeks of construction for an addition with a bathroom, after design, engineering and permits.
Where can a primary suite go?
A rear or side addition, a second story, or an attic with dormers. We look at your lot, zoning and the existing structure before design starts and tell you which fits your house.
Can we stay in the house while you build it?
Most clients do. An addition is built mostly from the outside until we open into the house, and we plan that step with you.
Will the price change during construction?
You sign a fixed price with allowances for the finishes you pick. It changes only if you change the job or choose finishes above an allowance.