Not every voucher-assisted household needs a full apartment. Some HUD-funded housing covers a single furnished room with shared bathroom or kitchen facilities, and the agency prices that unit type differently than anything else in its rent schedule. Under the fiscal year 2027 fair market rents HUD published September 1, 2026, effective October 1, a single-room-occupancy unit is capped at three-quarters of the ceiling set for a studio apartment in the same area, a fixed ratio built into HUD’s regulations rather than something recalculated area by area.
What A Zero-Bedroom, Or Efficiency, Fair Market Rent Actually Covers
HUD’s fair market rent schedule starts, as it does for every bedroom size, with the two-bedroom figure calculated from Census Bureau rent data. Working down from there, HUD constrains what it calls the efficiency, or zero-bedroom, FMR to fall between roughly 70 and 88 percent of the local two-bedroom number, using three years of American Community Survey estimates covering 2018 through 2024 to set the exact ratio for each area, according to the Federal Register notice HUD published this September. That zero-bedroom figure, the rent for a small studio apartment with its own kitchen and bathroom, is the number every smaller-unit calculation in the fiscal year 2027 schedule works from. HUD defines that baseline as a “standard quality” unit, meaning complete plumbing and kitchen facilities, no meals included in the rent, and situated on ten acres or less of land, and every area’s two-bedroom FMR also has to clear a floor: for fiscal year 2027, no area’s two-bedroom rent can be set below its state’s non-metropolitan median rent or the $1,014 national non-metropolitan rent, whichever is lower.
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Why HUD Prices A Single Room At Exactly 75 Percent Of That Number
The 25 percent reduction isn’t a judgment call HUD makes area by area, it is written directly into the agency’s own methodology regulation. 24 CFR 888.113(f)(2) states it in one line: “The FMR for single room occupancy housing is 75 percent of the FMR for a zero bedroom unit.” The September notice repeats the same math for fiscal year 2027, describing it as HUD deriving single-room-occupancy FMRs “by subtracting 25 percent from the zero-bedroom FMR.” The formula reflects that a single room, typically without a private kitchen and sometimes without a private bathroom, costs less to rent than even the smallest self-contained studio, and HUD has standardized that gap at exactly one-quarter, nationwide, in every FMR area in the country.
The Moderate Rehabilitation Program This Formula Actually Funds
This isn’t an abstract rent-schedule footnote. HUD’s own background section on the September notice states that the agency uses FMRs to determine, among other things, “initial rents for housing assistance payment contracts in the Moderate Rehabilitation Single Room Occupancy Program,” the same program named in the notice’s own title. That program, created to house people through converted hotels, boardinghouses, and similar buildings, is exactly where the three-quarters ratio does its work: it sets the ceiling a landlord in that program can be paid per room, not a suggestion a local agency can adjust on its own.
How A ZIP Code’s Rent Ceiling Gets Capped At 150 Percent Of The Metro Number
A separate but related cap governs Small Area Fair Market Rents, the ZIP-code-level ceilings some housing authorities are required to use instead of one flat number across an entire metro area. HUD calculates each ZIP code’s two-bedroom Small Area FMR from Census rent data specific to that ZIP code where the data is reliable, or from a rent ratio compared with the surrounding metro or county figure where it isn’t. But no matter how expensive a particular ZIP code’s rents run, the fiscal year 2027 notice caps every two-bedroom Small Area FMR at 150 percent of the two-bedroom figure for the wider metropolitan or non-metropolitan area containing it. A ZIP code with genuinely higher local rents doesn’t get an unlimited ceiling under the payment-standard rules that apply these FMRs; it gets whatever the local data supports, up to that 150 percent line.
Which Housing Authorities Are Actually Required To Use That Cap
Not every housing authority has to bother with ZIP-code-level rents at all. HUD first required Small Area FMRs in certain metropolitan areas under a rule finalized in November 2016, then added 41 more metropolitan areas to the mandatory list in an October 2023 notice, based on factors like how concentrated voucher families are in low-income census tracts and how much of an area’s rental stock sits in ZIP codes priced well above the metro-wide number. The fiscal year 2027 update also nudged two of those mandatory boundaries: Calvert County, Maryland came out of the Washington, D.C. area’s Small Area FMR zone, and several Connecticut towns shifted in and out of the Hartford area’s zone. A housing authority outside any mandatory area can still choose to use Small Area FMRs voluntarily after notifying HUD, but where the mandate applies, the 150 percent cap isn’t optional background math, it is the number the agency has to use to calculate a family’s monthly assistance.
Where FY2027’s Numbers Take Effect October 1
Both figures, the three-quarters single-room ratio and the 150-percent small-area cap, take effect October 1, 2026, and are published area by area on HUD’s own fair market rent dataset at huduser.gov, alongside the documentation of how each figure was calculated for the year. For a program built around housing people in single rooms rather than full apartments, that fixed 75 percent ratio, confirmed in HUD’s own regulation and repeated in this year’s notice, is the number that actually decides what a room can rent for under the program’s contracts.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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