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Home addition built by Mosquera Construction in Connecticut

Home Additions Built Right in Greenwich, CT

Mosquera Construction builds home additions in Greenwich, CT, planned around your lot, your zoning, and the house you already have. One crew handles permits, framing, and finish carpentry. Licensed, insured, with free written estimates.

Home Additions in Greenwich, CT

Mosquera Construction builds home additions in Greenwich, CT, from the first zoning check through finish carpentry. Room additions, primary suites, and family rooms are framed and finished by one licensed crew.

Addition over a brick home with green sheathing, built by Mosquera Construction in Connecticut

Greenwich housing runs to center-hall colonials, shingle-style houses, and backcountry estates, a large share of them built before 1950. An addition here has to tie into framing that has settled and rooflines that were never built to be extended.

Lots in Greenwich range from large backcountry parcels next to tight shoreline lots. The most common request is family room and primary suite wings that have to match an older colonial.

Every addition in Greenwich has to clear floor area limits and setbacks, plus flood zone rules on lots near the harbor. Those rules decide the size of the addition before any design money is spent.

Planning an Addition on a Greenwich Lot

The permit process in Greenwich runs through the Town of Greenwich building department and Planning and Zoning. Zoning sign-off comes first, then the building permit, then inspections at footings, framing, and final.

Foundations matter here. Footings go below frost depth, because coastal wind, salt, and repeated freeze and thaw cycles will heave anything set too shallow against the existing house.

The roof tie-in is where most addition problems start. The new roofline has to meet the old one with flashing and ice barrier done right, or water finds the joint every winter.

Matching is the last step. Siding, trim profiles, and window style are carried over from the existing Greenwich house, so the addition reads as original.

Hire a Licensed Home Addition Contractor in Greenwich, CT

Mosquera Construction is a licensed and insured home addition contractor working in Greenwich and the surrounding towns. Twenty years in Connecticut homes, with free written estimates before any work is scheduled.

Every Greenwich addition follows the same four steps: site visit and zoning check, written scope, permits and framing, then finish work and final inspection.

Braulio Mosquera runs the estimate and the job site. On Greenwich additions that means the person who quoted the work is on the site during framing, not a manager passing notes.

Finished colonial home with entry portico by Mosquera Construction in Connecticut

To start, call (203) 942-9495 or send the address and a few photos of the house. Estimates on Greenwich home additions are written, itemized, and free.

  • Licensed Connecticut Contractor
  • Fully Insured
  • 20 Years of Experience
  • Working in Greenwich and Nearby
  • Free Written Estimates

Recent Projects

Home Addition Questions from Greenwich Homeowners

Yes. We work in Greenwich and the surrounding towns, including Old Greenwich, Cos Cob, Riverside, and Byram. If you're right on the town line, call and we'll confirm before scheduling a visit.

It depends on size, foundation type, roof tie-in, and finishes. We don't quote additions by phone, because the number would be wrong. The site visit, zoning check, and written estimate are free.

Yes. Every addition needs a building permit, and most need zoning approval first. In Greenwich that goes through the Town of Greenwich building department and Planning and Zoning. We handle the paperwork and schedule the inspections.

Often, yes. Building up keeps the yard and avoids setback problems. It means checking whether the existing walls and foundation can carry a second floor. We look at that during the first visit.

Usually. Most of the work happens outside the existing walls until we open the connection. That opening gets sealed with a dust wall until the new space is ready to join the house.

It depends on the permit timeline and the season. Footings can't be poured in frozen ground, so winter is the best time to plan. Call (203) 942-9495 and we'll give you an honest lead time.

Why Greenwich Homeowners Choose Us

  1. Licensed and insured addition contractor working in Greenwich and nearby Connecticut towns
  2. Zoning and setbacks checked before any design money is spent
  3. Permit process, inspections, and paperwork handled by the contractor
  4. Footings below frost depth and roof tie-ins flashed correctly
  5. Siding, trim, and roof pitch matched to the existing Greenwich house
  6. Free written estimates on every Greenwich addition, with no obligation
  7. Job sites cleaned daily and cleared completely at the end

Home Additions Near Greenwich, CT

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Ready to Plan Your Greenwich Addition?

Send the address and what you want to add. Estimates on home additions in Greenwich, CT are written and free.

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