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Every home addition is constrained by lot size, zoning setbacks, and the existing structure but most additions fall into one of three categories. Remodart evaluates your property and goals to recommend the right approach.
Building up rather than out adding a full or partial second story over your existing footprint. The right choice when your lot is too small or too constrained by setbacks to build outward. Requires structural evaluation of the existing foundation and first-floor framing to confirm it can support the additional load sometimes requiring foundation reinforcement before framing begins.
Extending the footprint of the house outward a larger kitchen, an expanded family room, an additional bedroom wing. The most common addition type, building new foundation and connecting the new structure to the existing house at the roofline, walls, and all building systems. Requires sufficient lot size and setback clearance.
A connected living space for aging parents or extended family typically including a bedroom, bathroom, and small kitchenette or living area, with direct access to the main house. Unlike an ADU, an in-law suite addition is part of the main dwelling rather than a separate legal unit, which simplifies permitting in most Massachusetts municipalities.
Building an addition is more than adding square footage it's about protecting your investment through proper planning, structural integrity, and quality craftsmanship at every stage.
Lot survey reviewed, setback and zoning compliance confirmed, architectural plans drawn matching the addition to the home's existing style and roofline
For second-story additions, existing foundation and framing evaluated by a structural engineer to confirm load capacity. Reinforcement designed where needed
Building permit, and zoning variance if required, filed and approved before any construction begins
For rear/side additions: new footings poured below the Massachusetts 42" frost line, foundation walls built and tied into the existing structure
New structure framed and connected to the existing house roofline matched, wall systems tied in, structural continuity confirmed by inspection
Electrical, plumbing, and HVAC extended from existing systems or new systems installed, sized correctly for the added square footage
Siding, roofing, and windows matched to the existing home a seamless addition shouldn't look like an addition from the curb
Drywall, flooring, trim, paint, fixtures finished to match or complement the existing home's interior
Building department final inspection passed, certificate of occupancy issued for the new space
An addition that looks "added on" mismatched siding, an obvious roofline break, windows that don't align with the rest of the house undermines the home's value and curb appeal. Remodart matches rooflines, siding profiles, trim details, and window styles to the existing structure so the addition reads as part of the original design, not a later modification.
A well-built home addition increases your living space and your home's value without looking like a later addition. Remodart designs every addition to integrate seamlessly with the existing structure matched rooflines, matched siding, matched trim and builds it on a properly engineered foundation that will perform for decades.
Every home addition is thoughtfully designed to create bright, comfortable, and functional living spaces. From open-concept layouts to carefully selected finishes, every detail is planned to blend seamlessly with your existing home while enhancing everyday living.









Garage Conversion with Second-Floor Addition
See how this real project transformed an existing garage into a beautiful second-story living space designed for comfort, functionality, and long-term value. From the initial concept to the finished construction, every detail was carefully planned to integrate seamlessly with the original home while creating a bright, modern, and highly functional new living area.
Different layouts. Same footprint. Designed around your lifestyle.



We’re right next door in Marlborough and easy to schedule. Marcos or one of his project managers will walk your roof, give you an honest assessment, and explain your options repair, replacement, or just monitoring for another season. No pressure, no obligation.
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