Photo: Back of the addition: taped sheathing with the new windows in place, Lynnfield, MA
Home Additions in Winthrop, MA
Waterfront Construction Inc, an owner-led general contractor, offers home additions in Winthrop, MA. Winthrop is in Suffolk County, about 34 miles east of our Northborough base. Our closest documented addition project is in Lynnfield, MA, about 12 miles north.
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Winthrop, MA at a glance
- County
- Suffolk County, Massachusetts · 4 places we serve there
- From our base
- About 34 miles east
- Building permits
- Winthrop's building department
- Contractor rules
- MA Home Improvement Contractor registration (M.G.L. c.142A)
Nearest documented addition project
Two-Story Addition and Exterior Remodel in Lynnfield, MA
12 mi north of Winthrop
Our documented addition and other work, by distance:
- Lynnfield, MA: addition and exterior remodel 12 mi north
- Lynnfield, MA: addition framing video 12 mi north
- Needham, MA: porch addition 14 mi southwest
- Framingham, MA: client review of our kitchen remodel 23 mi west
- Mansfield, MA: kitchen remodel 27 mi southwest
- Marlborough, MA: client review of our first-floor remodel 29 mi west
- Hudson, MA: client review of our bathroom remodel 30 mi west
- Salem, NH: pool deck 31 mi north
- Westborough, MA: client review of our new siding and windows 33 mi west
- Northborough, MA: client review of our deck and small addition 34 mi west
- Shrewsbury, MA: client review of our kitchen and bathroom remodel 38 mi west
Permits and rules in Winthrop, MA
An addition needs a building permit from Winthrop's building department and must meet local zoning rules such as setbacks. On septic, an added bedroom also needs Board of Health review under Title 5. Since February 2, 2025, one accessory dwelling unit, up to 900 square feet or half the main house if smaller, is allowed by right in single-family zones.
What's included
- Room & second-story additions
- In-law suites (ADUs)
- Sunrooms & porches
- Designer & engineer coordination
Free estimate
Tell us about your project
Free and no-obligation. Prefer to talk? Call (508) 816-2726 (Mon–Sat, 7am–6pm).
- Itemized estimates
- 500+ projects completed
- Insured
Distances: straight line, GeoNames data (CC BY 4.0). Updated .