Home Additions for Londonderry Homeowners
Londonderry has been a core market for Ryan & Greene since the beginning, we've completed work in nearly every subdivision off Mammoth Road, Pillsbury Road, and Litchfield Road. The town's housing is a great fit for our typical projects: 1980s–2000s colonials and capes where homeowners are ready to update the original kitchen, expand the primary bath, or add a deck.
Londonderry has a higher concentration of 1990s–2000s colonials than most surrounding towns, 2,400 to 3,500 square feet, original builder-grade kitchens and baths, ready for a meaningful update twenty years on. That context shapes how we approach a home addition in Londonderry, the layouts we recommend, the materials that hold up, and the timeline we can hit. Most of our Londonderry additions clients come to us by word of mouth from a neighbor we've already worked for.
Neighborhoods we work in: Mammoth Road, Pillsbury Road, Litchfield Road, Old Derry Road, Hardy Road.
What's Included in a Londonderry Home Additions Project
Londonderry Home Additions Pricing
Real ranges based on actual projects we've completed in and around Londonderry. Your written estimate is fixed before we start.
Bump-Out
100–250 sq ft addition, typically expanding a kitchen, bath, or family room.
Room Addition
400–800 sq ft addition: primary suite, family room, or in-law.
Second-Story / Major
Full second-story or 800+ sq ft single-story addition with multiple rooms.
Why Londonderry Homeowners Choose Ryan & Greene
Local crew, fast response
Our shop is in Plaistow, 20 minutes from Londonderry. Site visits get scheduled within a week, and we don't disappear after the contract is signed.
Permits handled, code-compliant
We pull permits at the Londonderry Building Department and coordinate every inspection. Veteran-owned, licensed in NH, fully insured, OSHA certified.
Fixed-price contracts
Your number doesn't move unless you change scope. No "we found something" surprise invoices halfway through.