DC has ordered rules allowing single-stair condo buildings by July 2027
DC has ordered rules allowing single-stair condo buildings by July 2027
2026-09-09 · District of Columbia · Legislation
The District of Columbia has directed its buildings department to allow multifamily residential buildings up to six stories to be served by a single entrance and egress stairway. The One Front Door Amendment Act of 2026 took effect July 18, 2026, and the rules are due by July 1, 2027.1
What the Act requires
New D.C. Code § 6-1415 provides that “[n]o later than July 1, 2027, the Department of Buildings shall promulgate rules amending the Construction Codes to allow for a single entrance and egress stairway to serve multifamily residential buildings up to 6 stories above grade plane or high-rise buildings.”
The rules must address a set of conditions, and the conditions are the design:
- Fire-resistive construction and “automatic fire sprinklers throughout a building.”
- A maximum travel distance from the exit or entry door of any dwelling unit to the exit stairway.
- “No more than 4 units per floor or a commensurate limitation on square footage per floor.”
- A prohibition on dwelling unit doors opening toward interior exit stairways.
A new § 6-1401(10A) defines a “multifamily residential building” as “a building containing more than 2 dwelling units where the occupants are primarily permanent in nature.”
Nothing changes for an existing building
This is a forward-looking construction-code change. It does not alter the egress requirements of any building standing today, and no District association needs to do anything in response to it.
The reason it belongs in a community-association column is what comes next: a new class of District condominium building, with a different fire-safety design basis, arriving in the market from 2027 onward.
What single-stair design means downstream
The point of single-stair buildings is that a second egress stair consumes floor area, and on the small, irregular lots that characterise much of the District, that consumption is the difference between a project being buildable and not. Allowing one stair makes family-sized units on small lots viable. That is the policy case, and it is a real one.
The safety case is made by the conditions rather than by the stair count: sprinklers throughout, a capped travel distance, at most four units per floor, and unit doors that do not open toward the stair. A single-stair building built to those conditions is not an unsprinklered walk-up with a stair removed.
Three consequences worth a District board's attention, none of them urgent.
Sprinklers throughout become load-bearing, in the compliance sense. In a building whose egress design assumes a working sprinkler system, the sprinkler system is not a nice-to-have. Its inspection, testing and maintenance move from a routine line item to the thing the building's life-safety strategy rests on. For the association that eventually governs such a building, that is a reserve-planning and maintenance-priority fact.
Insurance underwriting will notice. Whether a single-stair design attracts different treatment from carriers is not knowable yet — there are no such buildings in the District to price. But egress configuration is an underwriting input, and boards of future single-stair buildings should expect the question. That connects to a broader tightening in District condominium insurance that is happening on its own track.
Four units per floor produces small associations. A six-storey building at four units per floor is a 24-unit association — too small for economies of scale in management, too small to absorb a large capital event comfortably, and squarely in the band newly reached by the District's energy benchmarking threshold. The District is legislating toward a housing type whose governance economics are difficult.
The timing question that matters
The Department of Buildings is simultaneously rewriting all twelve construction code categories, with proposed rules expected from late 2026 and final rules in winter 2027 — covered in our report on the code modernisation. The single-stair rules are due July 1, 2027, inside that same window.
Whether the Department folds the single-stair provisions into the general code adoption or issues them separately will determine how quickly the first such projects can be permitted. It is the kind of sequencing question that decides whether a statutory deadline produces buildings or produces a further deadline.
What to watch next
The DC Register, for the proposed rules, and whether the four-units-per-floor limit survives as a hard number or becomes the “commensurate limitation on square footage per floor” the statute permits as an alternative. That single choice will determine the shape of the buildings this Act produces.
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