Average House Size UK by Type
Detached, semi-detached, terraced, bungalow, and flat in m² and sq ft
Updated 9 July 2026
Detached 149 m² · Semi 97 m² · Terraced 88 m²
Average usable floor area by dwelling type (English Housing Survey 2018-19). The all-dwelling average is 94 m² = 1,012 ft².
Detached
149 m²
Semi-detached
97 m²
Terraced
88 m²
Purpose-built flat
58 m²
Average UK house size by type (English Housing Survey 2018-19): a detached house averages 149 m² (1,604 sq ft), a semi-detached house 97 m² (1,044 sq ft), and a terraced house 88 m² (947 sq ft). A bungalow averages 77 m², a converted flat 65 m², and a purpose-built flat 58 m². Across all dwelling types the average is 94 m².
Average UK house sizes vary far more by dwelling type than by region. The primary source is the English Housing Survey (EHS) “Size of English homes” fact sheet (MHCLG, gov.uk, 2018-19), the most recent EHS release to break usable floor area down by dwelling type. Usable floor area is measured within the footprint of the dwelling: it includes all rooms, internal partition walls, circulation space and stairs, and habitable loft space with fixed stair access, but excludes integral garages and balconies.
The spread is large: a detached house at 149 m² is 69% bigger than a terraced house at 88 m² and more than two-and-a-half times the size of a purpose-built flat at 58 m². The all-dwelling average was 94 m² in the 2018-19 survey and has since edged up to about 96 m² in the English Housing Survey 2024-25.
Average Floor Area by Dwelling Type
Source: EHS “Size of English homes” (MHCLG, gov.uk, 2018-19). Figures are mean usable floor area. Plot-share column shows the percentage with a private plot of 100 m² or more.
| Dwelling type | Avg (m²) | Avg (sq ft) |
|---|---|---|
| Detached house | 149 | 1,604 |
| Semi-detached house | 97 | 1,044 |
| Terraced house | 88 | 947 |
| Bungalow | 77 | 829 |
| Converted flat | 65 | 700 |
| Purpose-built flat | 58 | 624 |
All-dwelling average: 94 m² (1,012 sq ft). Terraced houses have the smallest plots of the house types; flats mostly share a plot rather than holding a private one.
Type-by-Type Breakdown
Detached house
149 m²
1,604 ft²
Detached houses are the largest UK dwelling type by a wide margin, averaging 149 m2 of usable floor area. They also hold the largest plots: 97% of detached homes sit on a private plot of 100 m2 or more (EHS 2018-19). This category spans compact 1990s developer builds around 90-110 m2 through to older and executive detached houses of 180-250 m2.
Semi-detached house
97 m²
1,044 ft²
The semi-detached house is the workhorse of the English suburb, averaging 97 m2. It is the most common house type in the stock: interwar and 1930s semis typically run 85-100 m2, while newer builds range from 90-110 m2. 87% have a private plot of 100 m2 or more.
Terraced house
88 m²
947 ft²
Terraced houses average 88 m2 (947 sq ft), the smallest of the three main house types. They also have the tightest plots: only 43% sit on a private plot of 100 m2 or more, and more than half have plots under 100 m2 (EHS 2018-19). Victorian and Edwardian through-terraces often reach 90-115 m2; two-up two-down cottages can be 55-75 m2.
Bungalow
77 m²
829 ft²
Bungalows average 77 m2 of floor area, held on a single storey. Despite the modest floor area, 84% sit on a private plot of 100 m2 or more, second only to detached houses, because a single-storey footprint spreads across more ground for the same internal space.
Converted flat
65 m²
700 ft²
Converted flats, typically Victorian or Edwardian houses subdivided into separate dwellings, average 65 m2, larger than purpose-built flats thanks to generous original room dimensions and ceiling heights. Only 36% have access to a private plot of 100 m2 or more; most share outdoor space with the other flats in the building.
Purpose-built flat
58 m²
624 ft²
Purpose-built flats are the smallest dwelling type at 58 m2 and are the least likely to have a private plot: just 29% have a private plot of 100 m2 or more, and 74% of all flats have only a shared plot (EHS 2018-19). This category dominates dense urban stock and drags down city averages such as London (84 m2, 49% flats).
Plot Size by Dwelling Type
“Plot” here means the land immediately surrounding the dwelling, whether hard or soft landscaped. The English Housing Survey does not publish a single average plot area; instead it reports the share of homes that have a private plot of 100 m² or more. Across all dwellings, 83% have a private plot for their sole use, a further 15% share a plot with other dwellings, and 2% (374,000 homes) have no private or shared plot at all.
Plot size tracks dwelling type closely. Almost all houses (99%) have a private plot, while most flats (74%) have only a shared plot. Among houses, terraced homes have the smallest plots: more than half sit on under 100 m². Detached houses have the largest, with 97% on a plot of 100 m² or more. Age matters too: homes built before 1919 were the most likely to have the smallest plots (54% under 100 m²), while interwar and early post-war homes (1919-1964) generally have the largest.
Source: EHS “Size of English homes” plot-size data (MHCLG, gov.uk, 2018-19). Shares refer to private plots of 100 m² and over.
Convert a UK House Size
97 m² is approximately about the size of a singles tennis court (195 m2 total, you have half the court).