An apartment building is priced on the income it produces, not on what the building down the street sold for. That holds in Washington DC as it does anywhere. What changes in DC is the data behind each number, and three local rules that move value before a buyer ever underwrites your rent roll.
If you have not seen how the three-value method works, start with the universal version of this question: What Is My Apartment Building Worth? This page puts real DC numbers behind it.
What DC small buildings actually sold for in 2026
From January through July 2026, 60 apartment buildings of 4 to 20 units sold in Washington DC. The median price landed at $200,000 per unit. The range ran from about $63,000 per unit to $550,000 per unit.
That range is the whole point. A single citywide average tells you almost nothing about your building.
Value by neighborhood
The same unit is worth very different money depending on where it sits. Median price per unit across 2026 DC sales, by submarket:
| Submarket | Median price per unit (2026) |
|---|---|
| Capitol Hill | ~$350,000 |
| Dupont Circle | ~$328,000 |
| Kingman Park | ~$328,000 |
| Langston | ~$206,000 |
| Brightwood Park | ~$209,000 |
| Adams Morgan | ~$176,000 |
| Anacostia | ~$125,000 |
A unit in Capitol Hill sold for close to three times a unit in Anacostia. Same city, same year, same building size band. Location sets the cap rate a buyer will accept, and the cap rate sets the value.
Source: CoStar, recorded DC multifamily sales, 4 to 20 units, 2026 year to date. Submarkets shown had at least three arm’s-length sales. Market data © CoStar, used with permission.
Why you cannot just look up your cap rate
Owners ask me for “the DC cap rate” as if it were a posted number. It is not.
Across 314 recorded DC sales of 4- to 20-unit buildings from 2024 through July 2026, only 43 reported an actual cap rate. Small buildings trade without a published cap rate most of the time. Where a cap rate was reported, the median sat near 6.25 percent, and the middle half of sales fell between roughly 5.0 and 7.7 percent.
Two things follow from that. First, a wide band means the cap rate on your building depends on its condition, its tenancy, and its submarket, not on a citywide figure. Second, because most small sales never publish a cap rate, you cannot reverse-engineer your value from comps alone. You have to build it from your own normalized NOI. That is exactly the work a lender and a buyer will do to you, so it pays to do it first.
Three DC rules that move your number
Value in DC is not set by the market alone. Three local rules change what a buyer will pay, and each one belongs in your estimate before you list or refinance.
The Tenant Opportunity to Purchase Act (TOPA). When you sell a covered building, tenants hold a right to purchase first. That adds time and process to a DC sale that a Virginia or Maryland sale does not carry. Buyers price that timing risk in. Planning the TOPA sequence early protects both your price and your closing date. See Selling a DC Apartment Building: TOPA Timing for the timing and strategy view.
Rent stabilization. Many older DC buildings sit under the District’s rent-control rules, which limit how fast rents on covered units can rise. If your rents sit below market in a covered building, you cannot close that gap overnight, and a buyer knows it. That caps the optimistic end of your value range in a way an uncovered building does not face.
Rising carry costs. Insurance, maintenance, and property taxes have been climbing faster than rents in the DC operating statements I review. Higher expenses lower NOI, and a lower NOI lowers value at any cap rate. This is pricing pressure that a 2019 rule of thumb does not capture.
Run the number on your own DC building
Take your trailing twelve months. Subtract vacancy, a management fee even if you self-manage, a capital reserve, and any one-time income. What remains is your normalized NOI.
Divide that NOI by a cap rate for your submarket and condition, not a citywide average. Then sanity-check it against the per-unit medians above for your neighborhood. If the two numbers are far apart, one of your inputs is wrong, and it is worth finding out which before a lender or a buyer finds it for you.
What I do for DC owners
I read your rent roll and your trailing twelve months, normalize NOI the way a DC lender and a DC buyer will, apply a cap rate drawn from real sales in your submarket, and account for TOPA and rent stabilization where they apply. You get three values, conservative, base, and optimistic, and one recommendation: improve income, refinance, or sell.
Run the numbers first. The NOI quick check turns your rent roll and expenses into current NOI and a value read at a DC cap rate. About five minutes.
Get a read on your building. If you own an apartment building in Washington DC, Virginia, or Maryland, request a building audit. You get a submarket-specific valuation and a single next move.
More on the method behind the numbers: What Is My Apartment Building Worth? · About Shafiq Hirani
Frequently asked questions
What is a DC apartment building worth per unit in 2026? DC apartment buildings of 4 to 20 units sold at a median of about $200,000 per unit in the first seven months of 2026, with a range from roughly $63,000 to $550,000 per unit. Your number depends heavily on submarket and building condition.
What cap rate do DC apartment buildings sell at? Most small DC sales never publish a cap rate. Among 4- to 20-unit DC sales from 2024 through mid-2026 that did report one, the median was near 6.25 percent, with the middle half between about 5.0 and 7.7 percent. Condition, tenancy, and submarket move your building within that band.
Which DC neighborhoods have the highest apartment values? In 2026 sales, Capitol Hill, Dupont Circle, and Kingman Park led on price per unit, near or above $328,000. Anacostia sat lowest, near $125,000 per unit. A unit’s location sets the cap rate a buyer accepts, and that sets the value.
How does TOPA affect my building’s value? TOPA gives tenants a right to purchase when you sell a covered DC building, which adds time and process a Virginia or Maryland sale does not have. Buyers price that timing risk into their offer, so planning the sequence early protects your price and your closing date.
Does rent control lower my building’s value? Rent stabilization limits how fast rents on covered units can rise, so below-market rents in a covered building cannot be brought to market quickly. That caps the optimistic end of your value range compared with an uncovered building.