Home Additions and Garage Builds in MA & Southern NH

Family room additions give a household space to spread out and entertain. Second and third level additions add bedrooms or a hangout floor on top of the house you have. In-law additions give a parent or relative their own space under the same roof, and sunroom additions bring in light in every season. We also build garages, attached or detached, from the ground up, whether you need room for cars or for storage.

The test of a good addition is that you can't spot where the old house ends. In Amesbury, MA, we added two bedrooms and a primary suite and matched the existing rooflines, siding and window proportions so the new rooms read as part of the original home. Lap siding, PVC trim, architectural shingles and energy-efficient windows and insulation went on the outside, along with a new covered entry, and we restored the site around the work when it was done.

The Amesbury family chose a carefully designed addition over moving as the family grew. Inside, the new primary suite has a vaulted ceiling with reclaimed wood beams and decorative wall-panel molding, and the bath has a double maple vanity with quartz and brushed brass fixtures, plus a walk-in tiled shower with frameless glass, a bench, a niche and a herringbone floor.

In Andover, one addition was built around the kitchen: a navy furniture-style island, white shaker cabinets, a KitchenAid refrigerator and professional gas range, a pot filler, a beverage station and large windows and glass doors out to the yard. Another Andover addition opened the kitchen to the living area and added a primary bath with an oversized walk-in shower.

A bump-out is a targeted extension that fixes one room problem, like kitchen work space or a cramped bath. A full addition adds new rooms, with more floor, wall, roof and foundation. A small footprint doesn't remove the structural work: a bump-out still has to carry loads, tie into the existing structure and handle a new roof or wall intersection, and one that crosses a setback isn't rescued by being small. Our bump-out guide walks through choosing the smallest scope that fully solves the problem.

Our local addition guide puts a realistic timeline at about 4 to 9 months or more: roughly 1 to 2 months for concept and design, 1 to 2 months for permits and town approvals, then construction, where framing and weatherproofing alone take about 4 to 6 weeks. Design decisions, permitting, foundation work, weather, inspections, utilities and what we find inside the existing walls are what usually move the schedule.

Any structural, plumbing or electrical change needs building permits and inspections from your town, whether you live in Salem, NH or Andover, MA. Early on we look at zoning, setbacks, utilities, septic or sewer, drainage and site access, because those decide what can be built and where.

Every addition is priced on its own size, structure and finishes. For reference, our recent additions had budget bands of $650,000 (Andover kitchen addition, 2024), $700,000 (Andover coastal kitchen and primary bath, 2024) and $700,000 (Amesbury two-bedroom addition and primary suite, 2025). One homeowner in North Andover described starting with a minimum design at a reasonable cost, then adding features and changes as the project went along. Our cost guide covers what moves an addition budget up or down.

"Norman Builders did a fantastic job with our home addition project. Their attention to quality, detail, and superior workmanship has produced a finished product that is the envy of the entire neighborhood." (Don Z., Newburyport, MA)

"The addition is a real enhancement to our home and well worth the effort." (Roland M., North Andover, MA)

"Ryan and his team transformed our small two bedroom cottage into a beautiful house." (Brad and Sara R., Hampton, NH, addition and renovation started in October 2010 and finished on time that February)