Overcrowding
Contents |
[edit] Introduction
According to the Housing Act 1985, a dwelling is overcrowded when the number of persons sleeping in it contravenes the room standard or the space standard.
[edit] Room standard
The room standard is contravened when the number of persons sleeping in a dwelling and the number of rooms available as sleeping accommodation is such that two persons of opposite sexes who are not living together as husband and wife must sleep in the same room. Children under the age of ten shall be left out of account, and a room is available as sleeping accommodation if it is of a type normally used in the locality either as a bedroom or as a living room.
[edit] Space standard
The space standard is contravened when the number of persons sleeping in a dwelling is in excess of the permitted number, having regard to the number and floor area of the rooms of the dwelling available as sleeping accommodation.
The permitted number of persons in relation to a dwelling is whichever is the less of:
- The number specified in Table I in relation to the number of rooms in the dwelling available as sleeping accommodation, and
- The aggregate for all such rooms in the dwelling of the numbers specified in column 2 of Table II in relation to each room of the floor area specified in column 1
Table I
| NUMBER OF ROOMS | NUMBER OF PERSONS |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7½ |
| 5 or more | 2 for each room |
Table II
| FLOOR AREA OF ROOM | UMBER OF PERSONS |
| 110 sq. ft. or more | 2 |
| 90 sq. ft. or more but less than 110 sq.ft. | 1½ |
| 70 sq. ft. or more but less than 90 sq. ft. | 1 |
| 50 sq. ft. or more but less than 70 sq. ft. | ½ |
No account shall be taken for the purposes of either Table of a room having a floor area of less than 50 sq. ft.
NB English Housing Survey, Headline Report, 2020-21, published by the Department for Levelling Up, Housing and Communities in 2021, states: ‘Households are said to be overcrowded if they have fewer bedrooms available than the notional number needed according to the bedroom standard definition. See bedroom standard.’
[edit] Related articles on Designing Buildings
- Building regulations.
- Code for sustainable homes.
- Decent homes standard.
- Densification.
- Draft housing standards.
- Draft London Housing Strategy (blog November 2013).
- GLA Housing Design SPG.
- Housing Standards Review.
- Laying the foundations: a housing strategy for England.
- Micro flats.
- Minimum room size.
- Minimum space standards.
- NHBC technical standards.
- Technical housing standards – nationally described space standard.
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.




















