Home Additions North Shore MA: More Space, Fully Permitted, Built to Match

Zoning, setbacks and lot coverage

Every North Shore town has a zoning bylaw that controls how close you can build to property lines, how much of the lot the house can cover and how tall it can be. Many older neighborhoods were built before those rules, so existing homes are often nonconforming, and an addition may need a special permit or variance from the zoning board before a building permit can be issued.

We look at setbacks and lot coverage at the first visit, so you know early whether the addition you want needs a zoning step, which can add weeks or months to the schedule.

Historic districts and older neighborhoods

Parts of Salem, Marblehead and other North Shore towns are in local historic districts, where exterior changes visible from the street need approval from the historic district commission. Even outside those districts, an addition should respect the style of the house: rooflines, window proportions, siding and trim.

We plan for that review step when it applies and design details that look original to the house, which is also what protects resale value.

Near the water: conservation and wetlands

Coastal lots and properties near ponds, streams and marshes may fall under the Massachusetts Wetlands Protection Act, reviewed by the town conservation commission. Work within a buffer zone can require a filing and conditions for erosion control. It is common in towns along the water and around the many ponds of the North Shore, and it needs to be on the schedule from the start.

Engineering and plans

Every addition starts with a plan: a site plan showing setbacks, floor plans, elevations and a structural design for the foundation, framing and roof. An architect or designer usually handles the layout and look, and a structural engineer sizes beams, headers, footings and connections. Our About page states that all structural projects are pulled under licensed engineer review and town permits, and additions are no exception.

If you already have plans, we build from them and help catch anything that does not fit the existing house. If not, we can bring in the design help you need.

Foundations below the frost line

An addition needs a foundation that will not heave in a New England winter. In eastern Massachusetts footings are set below the frost line, typically around four feet deep. Depending on the design and the site, the addition may sit on a full basement, a crawlspace or a slab, and ledge, high groundwater or an old stone foundation next door can change the approach.

The foundation also has to meet the existing house cleanly, with proper drainage and waterproofing so the new space stays dry.

Tying the addition into the existing house

The joint between old and new is where additions fail if it is rushed. Floors need to meet at the same height, walls need to line up where the finishes will meet, and the roof and flashing at the connection have to shed water and snow for decades. Old houses are rarely level or square, so we lay out from the existing structure, not from a perfect drawing, and adjust the new framing to make the transition invisible.

First-floor additions for aging in place

More North Shore homeowners are planning to stay in their houses for decades, and a first-floor bedroom and bathroom is often the single change that makes that possible. Designing for it means wider doorways and halls, a curbless or low-threshold shower, blocking in the walls for future grab bars, good lighting and a step-free route from the driveway. These details cost little when they are planned from the start and a lot when they are retrofitted later.

Garage additions and rooms over the garage

A new garage bay or a room over an existing garage is a practical way to add space on many North Shore lots. Building over a garage usually means new roof framing, a stair and sometimes larger headers over the garage door opening, and the wall and ceiling between the garage and living space have specific fire separation requirements. Converting part of a garage into living space adds insulation, a raised or insulated floor and new framing where the door was.

Kitchen and dining additions

When a kitchen is too small to fix inside its own walls, adding onto it is often the answer. A rear addition can turn a cramped galley into an open kitchen with an island and a dining area, with the old exterior wall replaced by an engineered beam. Because we also handle kitchen remodeling, the addition and the new kitchen are planned together: plumbing locations, window placement, lighting and cabinet layout are set before the foundation is poured, not after.

Living at home during an addition

Most families stay in the house while we build. Much of an addition happens outside the existing walls, and the opening into the house is usually one of the last steps. We seal the work area, protect floors and paths, keep the site clean every day and tell you ahead of time when utilities will be interrupted or the house will be opened up.

One contractor from foundation to final paint

Adding to a home can mean an excavator, a foundation company, framers, roofers, plumbers, electricians, HVAC, insulation, drywall, trim and painters. Hiring them separately makes you the general contractor. With Premium Pro there is one contract, one schedule and one accountable team, led by owner Claudiney Fernandes, who walks every estimate and every final walkthrough.

We are a family-run, Massachusetts HIC licensed contractor with general liability insurance of $1,000,000 / $2,000,000 and active workers' compensation, 8+ years on the North Shore and a 4.8 star rating from 47 Google reviews.

What to ask any addition contractor

• Are you HIC registered and insured, and can I see the certificates?
• Who pulls the building permit, and who meets the inspectors?
• Who is the engineer, and who handles zoning or historic review if needed?
• Is the estimate itemized, with labor, materials and permits broken out?
• How will you protect my house and family while the addition is connected?
• What happens after the job is done?

Our answer to the last one: a final walkthrough together, and a check-in one year later, because if something needs attention we want to be the ones who fix it.