LD
Written by
LeaseDecoded Research Team
Statutes verified against primary state sources
How this page is sourced
Every statute cited here was checked against the state's own published text before this page went live. Court decisions are quoted from the published opinion and linked to it, so you can read the original yourself.
Primary sourcesNot legal advice
Content verified against primary state statutes before publication Last updated: September 2026

Quick Summary - What You Need to Know

  • D.C. Code § 42-3505.55 lets a housing provider prohibit subletting or assigning a lease "in its sole and absolute discretion", but only "provided, that the prohibition is included in the lease".
  • Where the lease allows subletting on the provider's reasonable consent, or says nothing about it, the same section lets consent be conditioned on the incoming person meeting "all of the housing provider's reasonable rental qualification guidelines", which the provider must furnish to the tenant on request.
  • That section is section 535 of the Rental Housing Act, and D.C. Code § 42-3509.01(a-2) makes a provider found to have violated section 533, section 534 or section 535 liable to the tenant for treble damages where it is found to have acted in bad faith.
  • The occupancy rule our record read is a floor-area sum rather than a headcount: 14 DCMR § 402.1 requires at least 130 square feet of habitable floor area for the first occupant, 90 more for each additional occupant up to a total of seven, and 75 more for each occupant past seven.
  • The money is capped rather than the timing: D.C. Code § 42-3505.10(b) holds an application fee to no more than $50, adjustable annually with the Consumer Price Index, and caps a replacement fee on an outgoing tenant at that same amount.

Understanding the Roommate Clause

Lease controls consent
Deadline to notify the landlord of a new roommate in Washi
Our District record found no day count for adding a roommate, because the section that answers the request answers it with your lease: D.C. Code § 42-3505.55 lets a housing provider prohibit subletting or assignment outright only where that prohibition is written into the lease, and otherwise lets it condition consent on the incoming person meeting reasonable rental qualification guidelines it has to furnish on request.

Washington answers the roommate question in three separate books, and the paragraph you signed is only the first of them. Consent sits in the Rental Housing Act, how many people the unit will hold sits in the Housing Code as a floor-area sum, and what counts as one household appears a third time in the Zoning Regulations.

D.C. Code § 42-3505.55 is the section that answers a request to bring another person in, and it answers with your lease. A blanket prohibition on subletting or assignment operates only where it was written into the lease; where the lease is silent or asks for reasonable consent, the provider may hold the incoming person to its reasonable rental qualification guidelines and has to hand those guidelines over if you ask for them.

Our District record read the operative text of the sections named on this page rather than the whole rental housing chapter, and in those sections it found no deadline for telling a housing provider that someone has moved in. The one response window the Code does produce belongs to the provider: § 42-3505.10(a)(7) makes it disclose in advance the number of days after receiving an application that it will take to approve or deny.

What renters assume

That the housing provider's yes settles everything, and that a household getting bigger is itself what pushes the rent up.

What is actually true

A yes under § 42-3505.55 does nothing to the floor-area minimums in 14 DCMR § 402, which are a separate question with their own numbers. And in a rent-stabilized unit 14 DCMR § 4207.2 authorizes a vacancy adjustment "only if every tenant vacates a rental unit", which one roommate leaving does not do.

The metric on this chart is the deadline to notify a landlord of a new roommate, and the District's row carries no figure. Only two of the sixteen rows carry a number at all: New York City at 30 days to name an added occupant, and Seattle at 30 days under a city-only rule.

The other fourteen rows show no such clock, and they are not all blank for the same reason. Austin, Los Angeles, Miami, Chicago, Denver, Phoenix, Atlanta, Nashville, Philadelphia, Portland, Boston and Las Vegas each read no statute. Washington's row reads lease controls consent, because the District does have a section on the question and what that section supplies is a consent standard rather than a deadline.

One District number could be mistaken for this one. D.C. Code § 42-3505.01(b) lets a housing provider recover possession where a tenant "is violating an obligation of the tenancy, other than nonpayment of rent, and fails to correct the violation within 30 days after receiving notice from the housing provider". That 30 days starts with the provider's notice rather than with anyone's move-in date, so it is a cure period and not the reporting window this chart is counting.

Plain English Version

Three questions, and your housing provider controls only one of them. The lease and D.C. Code § 42-3505.55 decide whether a new person may move in, the Housing Code decides how much floor area that person needs, and the Zoning Regulations decide what counts as a single household. A signature answers the first and leaves the other two exactly where they were.

District of Columbia Law on Roommate Clause

The law in District of Columbia
  • D.C. Code § 42-3505.55 is where the District answers a request to bring another person in, and it answers with the lease rather than with a clock: 'A housing provider may, in its sole and absolute discretion, prohibit subletting of the premise or assigning a lease, either in part or in full; provided, that the prohibition is included in the lease. Where the lease provision allows subletting subject to the housing provider's reasonable consent or where the lease is silent regarding subletting, the housing provider may condition its consent on the prospective subtenant meeting all of the housing provider's reasonable rental qualification guidelines; provided, that the housing provider furnishes the guidelines to the tenant upon request.' Two things in that sentence are worth a renter's attention: the absolute prohibition only operates if it was written into the lease, and where it was not, the qualification guidelines are the tenant's on request. The section is section 535 of the Rental Housing Act, and D.C. Code § 42-3509.01(a-2) provides that a housing provider 'found to have violated any provision of section 533, section 534, or section 535 ... shall be liable to the tenant for treble damages if the housing provider is found to have acted in bad faith.'
  • How many people may live in the unit is a floor-area question in the District, not a persons-per-bedroom one. 14 DCMR § 402.1 requires that each dwelling unit contain 'At least one hundred thirty square feet (130 ft.2) of floor area in habitable rooms for the first occupant of the dwelling unit', 'At least ninety square feet (90 ft.2) of additional floor area in habitable rooms for each additional occupant of the dwelling unit up to a total of seven (7) occupants', and 'At least seventy-five square feet (75 ft.2) of additional floor area' for each occupant past seven. Bedrooms get their own minimums: § 402.2 requires that a room slept in by 'not more than one (1) occupant' be a habitable room 'containing at least seventy square feet (70 ft.2) of habitable room area', and § 402.3 requires 'at least fifty square feet (50 ft.2) of habitable room area for each occupant' where two or more sleep in one room. Who counts toward that arithmetic is defined at 14 DCMR § 199: an 'Occupant' is 'any person over one year of age, living, sleeping, cooking, or eating in, or having actual possession of a habitation', and habitable rooms 'do not include attics, cellars, closets, corridors, hallways, laundries, serving or storage pantries, bathrooms, or similar places', so the square feet that count are living and sleeping space.
  • Adding or swapping a roommate does not by itself move the rent in a rent-stabilised unit. The vacancy increase is the adjustment a household change might be expected to trigger, and 14 DCMR § 4207.2 provides that 'A vacancy adjustment shall be authorized only if every tenant vacates a rental unit', which one roommate leaving does not do; the statute behind it, D.C. Code § 42-3502.13(a), is worded the same way, opening 'When a tenant vacates a rental unit on the tenant's own initiative' and capping the increase at 10% of the rent charged, or 20% where the previous tenant occupied for more than 10 years. Above that sits 14 DCMR § 4204.1: 'no rent increase shall exceed the dollar amount authorized or required by one (1) valid legal basis provided by the Act and this chapter'. The bases §§ 4204.2 through 4204.7 list are the annual adjustment of general applicability, the vacancy adjustment, hardship, capital improvement, related services and facilities, substantial rehabilitation, a seventy percent voluntary agreement, a tenant petition, and a court order. A change in the number of occupants is not one of them. D.C. Code § 42-3502.08(e) closes the mid-term question: 'no rent shall be adjusted under this chapter for any rental unit with respect to which there is a valid written lease or rental agreement establishing the rent for the rental unit for the term of the written lease or rental agreement.'
  • Once the person moving in applies to the housing provider as a prospective tenant, D.C. Code § 42-3505.10 sets the terms, and it caps the money rather than the time. Subsection (b)(1) provides that an application fee 'will be no more than $50', adjustable annually with the Consumer Price Index under (b)(2); (b)(3) provides that 'a housing provider shall not charge a prospective tenant any fee other than an application fee prior to signing a lease with the tenant'; and (b)(4) reaches roommate turnover directly: 'When a housing provider permits a tenant to find a replacement tenant, assign the lease, or sublet, a housing provider may require the outgoing tenant to pay a replacement fee, which shall not exceed the amount permitted as an application fee under this subsection.' In a rent-stabilised unit D.C. Code § 42-3502.11a adds that 'A housing provider shall not impose on a tenant a mandatory fee for any service or facility that has not been approved pursuant to § 42-3502.11 or § 42-3502.15.' One number in this section is easy to misread: the 10 days in § 42-3505.10(g)(2) is the provider's deadline to give 'a written response ... to the prospective tenant' who has disputed information behind an adverse action on an application. It is not a deadline to answer a roommate request, and nothing in the subsection makes silence an approval.

D.C. Code § 42-3505.55; 14 DCMR §§ 402, 4207 - statutes change; verify the current text for your situation.

The section a Washington renter is looking for is D.C. Code § 42-3505.55, and both halves of it matter. A housing provider "may, in its sole and absolute discretion, prohibit subletting of the premise or assigning a lease, either in part or in full; provided, that the prohibition is included in the lease." The proviso is the half that is yours: an absolute prohibition operates only where it was written down.

The second half covers a lease that is silent or asks only for reasonable consent. "Where the lease provision allows subletting subject to the housing provider's reasonable consent or where the lease is silent regarding subletting, the housing provider may condition its consent on the prospective subtenant meeting all of the housing provider's reasonable rental qualification guidelines; provided, that the housing provider furnishes the guidelines to the tenant upon request." The standard your roommate is being measured against is therefore a document you are entitled to see, and asking for it is how you learn what a refusal rests on.

That section is section 535 of the Rental Housing Act, which puts it in a list with a penalty attached. D.C. Code § 42-3509.01(a-2) provides that a housing provider "found to have violated any provision of section 533, section 534, or section 535 ... shall be liable to the tenant for treble damages if the housing provider is found to have acted in bad faith."

The Code caps the money rather than the timing. § 42-3505.10(b)(1) holds an application fee to no more than $50, adjustable each year with the Consumer Price Index under (b)(2), and (b)(3) provides that "a housing provider shall not charge a prospective tenant any fee other than an application fee prior to signing a lease with the tenant". Paragraph (b)(4) reaches roommate turnover directly: where a provider permits a tenant to find a replacement tenant, assign the lease or sublet, it "may require the outgoing tenant to pay a replacement fee, which shall not exceed the amount permitted as an application fee under this subsection."

One number in that same section is easy to misread. The 10 days in § 42-3505.10(g)(2) is the provider's deadline to give "a written response ... to the prospective tenant" who has disputed the information behind an adverse action on an application. It is not a deadline to answer a roommate request, and nothing in that subsection makes silence an approval.

Three provisions bear on whether a roommate change can move the rent in a rent-stabilized unit, and none of them makes a bigger household a reason to raise it. The adjustment a household change might be expected to trigger is the vacancy adjustment, and 14 DCMR § 4207.2 provides that "a vacancy adjustment shall be authorized only if every tenant vacates a rental unit". The statute behind it, D.C. Code § 42-3502.13(a), is worded the same way, opening "when a tenant vacates a rental unit on the tenant's own initiative" and capping the increase at 10% of the rent charged, or 20% where the previous tenant occupied the unit for more than 10 years.

Above that sits 14 DCMR § 4204.1: "no rent increase shall exceed the dollar amount authorized or required by one (1) valid legal basis provided by the Act and this chapter". The bases §§ 4204.2 through 4204.7 list are the annual adjustment of general applicability, the vacancy adjustment, hardship, capital improvement, related services and facilities, substantial rehabilitation, a seventy percent voluntary agreement, a tenant petition and a court order. A change in the number of occupants is not among them, and D.C. Code § 42-3502.08(e) closes the mid-term question: "no rent shall be adjusted under this chapter for any rental unit with respect to which there is a valid written lease or rental agreement establishing the rent for the rental unit for the term of the written lease or rental agreement."

Two cautions before you lean on any of this. Our District record read the operative text of the sections named on this page, not every section of the Code's rental housing chapter, so treat this as an account of those sections rather than a survey of the chapter. And sections get amended, so check how § 42-3505.55 and § 42-3505.10 read today.

District of Columbia Tenant Protections

Four provisions carry the substance here, and each of them can be read in full. D.C. Code § 42-3505.55 makes a sole-and-absolute-discretion prohibition on subletting or assignment operate only where the prohibition is included in the lease, and where the lease is silent or asks for reasonable consent it lets the provider condition consent on the prospective subtenant meeting its reasonable rental qualification guidelines, which it must furnish to the tenant upon request.

D.C. Code § 42-3509.01(a-2) puts a penalty behind that section: a housing provider found to have violated section 533, section 534 or section 535 of the Rental Housing Act is liable to the tenant for treble damages if it is found to have acted in bad faith.

D.C. Code § 42-3505.10(b) caps what the change can cost, holding an application fee to no more than $50, barring any fee other than the application fee before a lease is signed, and capping a replacement fee on an outgoing tenant at the amount permitted as an application fee.

And in a rent-stabilized unit D.C. Code § 42-3502.11a provides that a housing provider shall not impose on a tenant a mandatory fee for any service or facility that has not been approved pursuant to § 42-3502.11 or § 42-3502.15. Each of these has been amended before, so read the section as it stands today.

What's Specific to Washington

Deadline to notify the landlord of a new roommate

Same clause, 16 cities, different rules. Tap any city for its own guide.

Seattle, Washington
30 daysSeattle only
Austin, Texas
No statute
Miami, Florida
No statute
Washington, District of Columbia
Lease controls consent
Columbus, Ohio
No statute; lease controls

Figures are the state rule, or the stronger city ordinance where one exists. Verify the current law for your own situation before relying on it.

Washington is not a city sitting inside a state, so the two-layer search the other rows on this chart call for does not exist here. The Council of the District of Columbia writes what elsewhere would be split between a state statute and a city ordinance, District agencies write and enforce the regulations under it, and there is no state legislature above the city and no county in between. A renter's search ends in the D.C. Code and the District's own regulations rather than continuing into a separate municipal code.

On this question that one government answers in three different books at once. Consent sits in the Rental Housing Act at D.C. Code § 42-3505.55. How many people the unit may hold sits in the Housing Code at 14 DCMR § 402, measured in square feet. And group size appears again in the Zoning Regulations of 2016.

The Housing Code answer is a sum rather than a headcount. 14 DCMR § 402.1 requires at least 130 square feet of floor area in habitable rooms for the first occupant of the dwelling unit, at least 90 square feet of additional habitable floor area for each additional occupant up to a total of seven occupants, and at least 75 square feet more for each occupant past seven. Bedrooms carry their own minimums: § 402.2 requires a room slept in by not more than one occupant to be a habitable room containing at least 70 square feet of habitable room area, and § 402.3 requires at least 50 square feet of habitable room area for each occupant where two or more sleep in one room.

Who counts toward that sum is defined at 14 DCMR § 199. An "Occupant" is "any person over one year of age, living, sleeping, cooking, or eating in, or having actual possession of a habitation", and habitable rooms "do not include attics, cellars, closets, corridors, hallways, laundries, serving or storage pantries, bathrooms, or similar places". So the space that counts is living and sleeping space, and the definition of occupant starts above one year of age.

The third book is where a number for a group comes from. In the Zoning Regulations of 2016, 11-B DCMR § 100 defines "Household" as one of four things: "One (1) family related by blood, marriage, adoption, or foster agreement"; "Not more than six (6) persons who are not so related, living together as a single house-keeping unit"; "A religious community having not more than fifteen (15) members"; or a residential facility housing up to six persons with disabilities and two caregivers.

Read that six against the caution the same section opens with, which is that its definitions "shall not be held to modify or affect in any way the legal interpretations of these terms or words where used in other regulations". The Housing Code's own definition of "family" at 14 DCMR § 199 draws no such line, providing only that the term "includes, but is not limited to, a single person living alone".

Two limits on how far this page reaches. Our District record read the operative text of the sections named here, on the Council's code site and in the Office of Documents' own codified DCMR files, rather than every section of Title 14. And the District has a Property Maintenance Code Supplement of 2013 whose occupancy section, 12-G DCMR § 404, works by amending an International Property Maintenance Code that the Office of Documents' editor's note says is copyrighted and "therefore is not republished here"; that supplement refers to occupant numbers "authorized by Sections 404.4.1 and 404.5" of that model code, and those are numbers our record did not read. Regulations get amended too, so check 14 DCMR § 402 and 11-B DCMR § 100 as they read today against the wording quoted here.

Is the subletting prohibition actually in the lease?

D.C. Code § 42-3505.55 lets a housing provider prohibit subletting or assigning a lease in its sole and absolute discretion, provided that the prohibition is included in the lease.

Have you asked for the rental qualification guidelines?

Where the lease allows subletting on reasonable consent or is silent, the same section lets consent be conditioned on those guidelines and requires the provider to furnish them to the tenant upon request.

Is a fee being charged on top of the application fee?

§ 42-3505.10(b)(3) bars any fee other than an application fee before a lease is signed, and (b)(1) holds that fee to $50, adjusted annually with the Consumer Price Index.

Does the floor area carry another occupant?

14 DCMR § 402.1 requires 130 square feet of habitable floor area for the first occupant and 90 square feet more for each additional one, up to a total of seven.

Sources

The law this guide relies on, and where to read it. Statutes change, so confirm the current text before you act on it.

Red Flags to Watch Out For

  • A ban asserted, not written down

    D.C. Code § 42-3505.55 makes the sole-and-absolute-discretion prohibition operate only where it is included in the lease. A refusal that points at no lease wording is worth questioning.

  • Qualification guidelines never produced

    The same section conditions consent on the prospective subtenant meeting the provider's reasonable rental qualification guidelines, and requires those guidelines to be furnished to the tenant upon request.

  • A second fee before any lease is signed

    § 42-3505.10(b)(3) provides that a housing provider shall not charge a prospective tenant any fee other than an application fee prior to signing a lease with the tenant.

  • A replacement fee above the application cap

    § 42-3505.10(b)(4) caps a replacement fee on an outgoing tenant at the amount permitted as an application fee, which (b)(1) holds at no more than $50.

  • Rent raised because the household grew

    In a rent-stabilized unit 14 DCMR § 4204.1 allows an increase only on one valid legal basis provided by the Act and that chapter, and a change in the number of occupants is not among the bases §§ 4204.2 through 4204.7 list.

Your Rights as a Washington Tenant

  • A blanket ban has to be in the lease

    D.C. Code § 42-3505.55 lets a housing provider prohibit subletting or assigning a lease in its sole and absolute discretion, provided that the prohibition is included in the lease.

  • The screening standard is yours on request

    Where the lease allows subletting on reasonable consent or is silent, consent may be conditioned on the provider's reasonable rental qualification guidelines, which it must furnish to the tenant upon request.

  • Treble damages for a bad-faith violation

    D.C. Code § 42-3509.01(a-2) makes a provider found to have violated section 533, section 534 or section 535 of the Rental Housing Act liable to the tenant for treble damages where it is found to have acted in bad faith.

  • One roommate leaving is not a vacancy

    14 DCMR § 4207.2 provides that a vacancy adjustment shall be authorized only if every tenant vacates a rental unit, and D.C. Code § 42-3502.13(a) is worded the same way.

What To Do - Step by Step

1

Find the subletting sentence

Read what your own lease says about subletting and assignment. D.C. Code § 42-3505.55 makes an absolute prohibition operate only where it is included in the lease, so the wording there is the starting point.

2

Ask for the qualification guidelines

Where the lease allows subletting on reasonable consent or says nothing, the same section requires the housing provider to furnish its reasonable rental qualification guidelines to the tenant upon request. Ask in writing.

3

Price the change before agreeing to it

§ 42-3505.10(b)(1) holds an application fee to $50, (b)(3) bars any other fee before a lease is signed, and (b)(4) caps a replacement fee on an outgoing tenant at the application-fee amount.

4

Do the floor-area sum

14 DCMR § 402.1 asks for 130 square feet of habitable floor area for the first occupant and 90 more for each additional one up to seven, with bedroom minimums of 70 and 50 square feet under §§ 402.2 and 402.3.

5

Check what any rent increase is based on

In a rent-stabilized unit 14 DCMR § 4204.1 allows an increase on one valid legal basis only, and D.C. Code § 42-3502.08(e) bars an adjustment during the term of a valid written lease that establishes the rent.

6

Read the current text before acting on a refusal

Pull up § 42-3505.55, § 42-3505.10 and 14 DCMR § 402 in their current form, or take the refusal to a District tenant-rights group, before you treat a no as final.

Frequently Asked Questions

how long do i have to tell my landlord about a new roommate in washington dc
Our District record read the sections named on this page and found no deadline in them. What the Code does produce is the provider's own window: D.C. Code § 42-3505.10(a)(7) makes a housing provider disclose in advance the number of days after receiving an application that it will take to approve or deny.
can my landlord refuse a roommate in washington dc
D.C. Code § 42-3505.55 lets a housing provider prohibit subletting or assigning a lease in its sole and absolute discretion, provided that the prohibition is included in the lease. Where the lease is silent or asks for reasonable consent, consent may be conditioned on the prospective subtenant meeting the provider's reasonable rental qualification guidelines.
how many people can live in an apartment in washington dc
14 DCMR § 402.1 answers in floor area: at least 130 square feet of habitable floor area for the first occupant, 90 more for each additional occupant up to seven, and 75 for each past seven. The Zoning Regulations answer a different question, defining a household at 11-B DCMR § 100 to include not more than six persons who are not related, living together as a single house-keeping unit.
can my rent go up if a roommate moves in dc
In a rent-stabilized unit 14 DCMR § 4204.1 allows an increase only on one valid legal basis provided by the Act and that chapter, and a change in the number of occupants is not among the bases §§ 4204.2 through 4204.7 list. 14 DCMR § 4207.2 authorizes a vacancy adjustment only if every tenant vacates the rental unit.
where can i read d.c. code § 42-3505.55 for myself
The section is D.C. Code § 42-3505.55. District of Columbia publishes its own statutes at code.dccouncil.gov, and that is where this guide read it: open D.C. Code § 42-3505.55. Statutes are amended, so check the text as it reads on the day you need it.
what is the deadline to notify the landlord of a new roommate in washington
District of Columbia: Lease controls consent. The District puts no day count on this. Our record found no D.C. That comes from D.C. Code § 42-3505.55.
does washington add its own rule or does district of columbia law decide
Washington is not a city sitting inside a state, so the two-layer search the other rows on this chart call for does not exist here: the Council of the District of Columbia writes what elsewhere would be split between a state statute and a city ordinance, District agencies write and enforce the regulations under it, and there is no state legislature above the city and no county in between - a renter has no separate municipal code to look up afterwards. On this question that one government answers in three different books at once. Consent sits in the Rental Housing Act at D.C.
how does district of columbia compare with other states on this
District of Columbia: Lease controls consent. Washington: 30 days (Seattle only). Texas: No statute. The chart above on this page shows every city side by side.
Legal Disclaimer: This guide is for general educational purposes only and does not constitute legal advice. Information reflects general District of Columbia and Washington law as of September 2026 but may not reflect recent changes. Consult a licensed attorney in District of Columbia for advice about your specific situation.