Home additions

Owner's suite additions in Northern Virginia

An owner's suite gathers the rooms that matter most at the end of a day into one private part of the house: a bedroom, a bathroom and a closet. It is also called a primary suite, and older plans label it the master suite. In Northern Virginia, a primary suite addition can be a ground-floor wing for single-level living or new rooms built over part of the existing house.

Illustrative photo of a bedroom with a white bed and a wooden headboard
Illustrative photo Antonio Araujo / Unsplash

A suite addition here follows the same zoning, permit and community review as any addition, with one detail that is easy to miss: a new bedroom on a well and septic system can need health department approval. Blackline Builders plans the bathroom and closet at the same time as the structure, so drain runs, framing and window placement agree from the first set of plans.

What an owner's suite addition includes

  • Layout planning for the bedroom, bathroom, closet and any sitting or dressing area
  • Foundation and framing for a ground-floor wing, or structure for a suite built above
  • The bathroom: shower, tub, vanities, water closet, ventilation and waterproofing
  • Plumbing routes and drain slopes set before the floor is framed
  • A walk-in closet with built-in storage
  • Windows placed for privacy and light, and doors to a terrace or porch if planned
  • Heating and cooling assessed for the added rooms
  • Sound separation from shared living spaces
  • Tile, flooring, lighting, millwork and finishes
  • A plan for the old bedroom, whether it becomes a guest room, office or nursery

How we approach an owner's suite

  1. Site visit. We look at where a suite can attach, how the lot slopes and how the new rooms will connect to the main living areas.
  2. Position. First floor or upper floor, garden side or street side, reached by a hallway or opening off the main living area.
  3. Bath and closet first. Drain locations, shower size and closet depth set the footprint, so they are resolved before walls are fixed.
  4. Checks and approvals. Zoning, community review and any well or septic approval for the added bedroom, then the building permit.
  5. Construction. Structure, dry-in, systems and inspections, with the connection to the house opened when the new rooms are ready for it.
  6. Finishes. Tile, cabinetry, lighting and closet fittings go in last.

For the wider picture, see the steps of a Blackline project.

Planning an owner's suite in Northern Virginia

  • Bedrooms on well and septic. In Loudoun County, adding a bedroom to a house served by a well and septic system requires Health Department approval. In Prince William County, an addition on well and septic needs Virginia Department of Health approval, and Fairfax County's Health Department may review the permit package for such lots.
  • Permits and code. The Virginia Uniform Statewide Building Code governs across the region, with local building departments enforcing it. Fairfax County lists new additions, new bedrooms and bathroom remodels among work that needs a permit. In the Town of Vienna, the county permit application is also reviewed against the town's own zoning code.
  • Community review. For homes under Reston Association covenants, no construction, including tree removal, may begin before the association's final written decision on the project.
  • Airport noise. Close to Washington Dulles International Airport, a new addition inside the Ldn 60-65 noise area of Loudoun's Airport Impact Overlay District needs acoustical treatment, which matters most in a room meant for sleep.
  • Streams and grading. In Fairfax County, land within 100 feet of a perennial stream or a connected wetland falls inside a Resource Protection Area. Separately, anywhere in the county, an infill lot grading plan is required once single-family work with stormwater improvements disturbs more than 2,500 square feet of land. A suite's footprint is set with both in view.

Questions about owner's suite additions

A first-floor suite supports single-level living and suits owners who plan to stay in the house as needs change. It needs yard space inside the setbacks. An upstairs suite keeps the garden and can capture views, but it relies on the structure below and a stair you will use every day. The lot, the house and how you expect to live settle it.

Yes, where grade, setbacks and privacy allow. A door from the bedroom to a covered porch or a concrete terrace is designed with the suite, so floor levels, drainage and roof lines agree. Fairfax County, for one, lists decks and porches among work that needs a permit, so it makes sense to include them in the same set of plans.

If the house has underused space, such as a spare bedroom beside the current primary bedroom, combining rooms can create a suite without new foundation or roof. An addition makes sense when the house has no room to give, or when the suite belongs on another floor. A site visit shows which path fits the house.

To see where a suite could fit your home, book a free on-site estimate or call 571-200-3100.

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We'll meet you on site, walk the property with you and talk through what the work will take.