State rules
Most units built before 1976 are rent-controlled: the 2026 allowance is 4.1%, or 2.1% for registered elderly and disability tenants. See the Washington DC file.
| Amount cap | No statewide cap; a local program may apply — see below. |
|---|---|
| Notice for an increase | 30 days' written notice for a change in a month-to-month tenancy. |
| Frequency | One increase per 12 months in controlled units. |
| Retaliation window | Retaliation is barred, as everywhere; the presumption window varies — document your dates. |
| Local rent caps | Not barred statewide; check your city. |
| Sources | D.C. Code § 42-3502.08 |
Park-style housing is rare in the District; controlled-unit rules govern.
Rules checked October 2026
Sources: D.C. Code § 42-3502.08. Information, not legal advice.