Room Additions in Marietta, GA

A family room that opens straight off the kitchen is a popular kind of room addition, because it turns a closed-off cooking space into the center of the house. For a Marietta home with a kitchen on the back wall, it usually means building the new room outside that wall and then removing most of the wall itself.

That removal is what makes this kind of project different from adding a bedroom down a hallway. The sections below cover the beam that replaces the wall, how to make the old and new spaces feel like one room, and how the work is ordered so the kitchen stays usable as long as possible.

Replacing the back wall with a beam

An exterior wall almost always carries weight: ceiling joists, roof rafters and sometimes a second floor bear on it. When most of the wall comes out, a beam takes over that load and passes it to posts, which in turn need solid support below, often new footings. The size of the beam depends on the span and what sits above it, and it is set by span tables or an engineer, not by eye.

There are two common ways to install it. A dropped beam hangs below the ceiling and shows as a soffit across the opening, which is simpler to build. A flush beam sits up in the ceiling plane so the ceiling reads as one surface, but it takes more work, especially if the joists above have to be cut and hung from it. Temporary walls hold the structure while the old wall comes out.

Making the kitchen and the new room read as one space

Ceiling height is the first thing the eye notices. Matching the kitchen ceiling gives a calm, continuous look; raising or vaulting the family room ceiling marks it as a separate zone and can make the room feel larger. Either works when it is a deliberate choice rather than a consequence of the roof framing.

Floors matter just as much. If the kitchen has hardwood, new boards can be woven into the old where the wall stood so there is no seam, and the whole area refinished together. How new boards are laid and blended is explained under hardwood floor installation in Marietta. If the kitchen has tile, a clean transition at the old wall line is often the better plan.

Seating, walkways and the television wall

An open plan still needs a clear path. The route from the kitchen to the back door or patio should not cut between the sofa and the television, and the cook should have a view into the family room without the island blocking it. Sketching the furniture before framing helps place windows, outlets and any cable runs.

Decide early where the television goes. A wall facing big windows will show glare in the afternoon, and a mounted screen needs blocking in the wall and an outlet at the right height. If you want a fireplace or built-in cabinets, they shape the window layout as well.

Light, windows and the kitchen that loses its view

Many kitchens have a window over the sink on the very wall that is being removed. Once the addition is built, that window either disappears or looks into the new room, so the family room’s windows now have to light both spaces. Tall windows or a pair of doors on the far wall help daylight reach back into the kitchen.

The larger combined space also changes the heating and cooling load. The kitchen’s existing vents may be enough for the kitchen alone but not for the joined area, so the duct plan is reviewed along with the windows.

The order of work around a working kitchen

Foundation, framing, roofing, windows and siding on the addition can all be completed while the old exterior wall stays in place, so the kitchen keeps working through most of the job. A plastic dust barrier goes up on the kitchen side before the wall is opened. Then the shoring is set, the wall is removed, the beam and posts go in, and wiring, ductwork and insulation are roughed in for inspection. Drywall, flooring, trim and paint finish the combined space.

Marietta permits: city or county, and who applies

Marietta sits in Cobb County, and not every Marietta mailing address is inside city limits. The city’s homeowner permit page explains how to check: a county parcel record showing tax district (4) MARIETTA means the city has jurisdiction, while (9) UNINCORPORATED means Cobb County does. The same page says homeowners cannot apply for electrical, plumbing or mechanical permits; the professional doing that work applies.

If the family room includes a wet bar or the kitchen plumbing moves, the city’s plumbing permit page says any work on a plumbing system needs a permit. Applications go through the SagesGov portal, and inspections have been done in person since virtual inspections began phasing out on November 1, 2024. Ask the Building Division what else your addition requires.

Questions about kitchen and family room additions

Can the whole wall between my kitchen and a new family room come out?

Usually most of it can, with a beam carrying the load that the wall used to hold. Short sections at each end often remain to house the posts, plumbing vents or ductwork. If the wall contains a drain stack or the main supply line, moving it adds cost, so it is worth finding out what is inside the wall before the layout is final.

Will my kitchen be usable while the addition is built?

For most of the project, yes. The new room can be built and closed in while the old exterior wall still stands. The kitchen is most affected during the few stages when the wall is opened, the beam is installed and the floor and drywall are joined, and a dust barrier helps during that period. Planning simple meals for those stages makes it easier.

How do I find out whether my Marietta address is inside city limits?

Look up the property’s Cobb County parcel record and check the tax district. According to the City of Marietta, a district shown as (4) MARIETTA means the property is inside city limits and the city handles permits, while (9) UNINCORPORATED means Cobb County has jurisdiction. That tells you which office to contact about your addition.

Let’s look at your kitchen wall

Reach us at 404-409-4448 if you are picturing a family room off the kitchen. We would start by looking at the back wall, the attic above it and the yard beyond, then prepare a written estimate that covers the beam, the opening and the room built around it.