Average Apartment Size in London

Updated 16 July 2026 · London Plan (2021), Nationally Described Space Standard, Valuation Office Agency

Average London 1-bedroom flat

46 m²

≈ 495 ft²

A studio averages about 30 m² (323 ft²) and a two-bedroom flat around 67 m² (721 ft²). London has some of the smallest flats of any major world city.

London flats are small by international standards. A typical one-bedroom in the Greater London private rental market is around 46 square metres, about 495 square feet, with studios near 30 square metres and two-beds around 67 square metres. The Valuation Office Agency puts the median flat across England and Wales at 43 square metres, and London boroughs cluster at the bottom of that range. The table below shows typical sizes by flat type, in both square metres and square feet.

London Apartment Size by Type

Type	Typical m²	Typical ft²
London average 1-bed flat	~46	~495
Studio flat	25-37	269–398
1-bedroom flat	40-50	431–538
2-bedroom flat	60-75	646–807
3-bedroom flat	80-95	861–1,023
London average 2-bed flat	67	721

Type

Typical m²

Typical ft²

London average 1-bed flat

~46

~495

Studio flat

25-37

269–398

1-bedroom flat

40-50

431–538

2-bedroom flat

60-75

646–807

3-bedroom flat

80-95

861–1,023

London average 2-bed flat

721

Average one-bed and two-bed sizes reflect aggregated Greater London private rental listing data; the studio figure is typical rather than a statutory average. Median flat floor area (England and Wales) 43 m2: Valuation Office Agency, published by the ONS. Type ranges follow the London new-build market and the space standards below.

What Each Flat Type Means

Studio flat

25-37 m²

One main room with a kitchenette and bathroom. Older conversions can be under 30 m2; the London Plan minimum for a new-build studio (1 bed, 1 person) is 37 m2.

1-bedroom flat

40-50 m²

A separate bedroom and living room. Greater London private rental one-beds average around 46 m2; new builds often target exactly the 50 m2 London Plan minimum for a 1-bed 2-person flat.

2-bedroom flat

60-75 m²

The most common family flat. The London Plan minimum is 61 m2 for a 2-bed 3-person and 70 m2 for a 2-bed 4-person unit. Average across Greater London is roughly 67 m2.

3-bedroom flat

80-95 m²

Scarce in the new-build market and mostly found in mansion blocks and larger period conversions. The London Plan minimum for a 3-bed 4-person flat is 74 m2.

Minimum Flat Size in London (London Plan)

The London Plan (2021) adopts the Nationally Described Space Standard as the minimum gross internal floor area for new homes. These are the single-storey (flat) minimums:

Dwelling	Min m²	Min ft²
Studio (1 bed, 1 person)	37	398
1 bed, 2 person	50	538
2 bed, 3 person	61	657
2 bed, 4 person	70	753
3 bed, 4 person	74	797

The London Plan also requires a floor-to-ceiling height of at least 2.5 m for at least 75 percent of a dwelling's gross internal area. Individual bedrooms must be at least 7.5 m² (single) or 11.5 m² (double).

Source: Nationally Described Space Standard (2015), Table 1, gov.uk; London Plan (2021), Policy D6 Housing quality and standards.

Frequently Asked Questions

What is the average apartment size in London?

An average London one-bedroom flat is about 46 m2 (roughly 495 sq ft). A studio is around 30 m2 (323 sq ft) and a two-bedroom flat about 67 m2 (721 sq ft). London flats are among the smallest in the UK: the Valuation Office Agency found the median flat across England and Wales is 43 m2, and London boroughs sit at the bottom of the size distribution.

How big is a London flat in square feet?

A 46 m2 one-bedroom London flat is about 495 sq ft. A 30 m2 studio is roughly 323 sq ft, and a 67 m2 two-bedroom flat is about 721 sq ft. To convert any size, multiply square metres by 10.764.

What is the minimum flat size in London?

The London Plan (2021) adopts the Nationally Described Space Standard as its minimum internal floor areas. A new-build studio (1 bed, 1 person) must be at least 37 m2, a 1-bed 2-person flat 50 m2, a 2-bed 3-person flat 61 m2, and a 2-bed 4-person flat 70 m2. The London Plan also requires a floor-to-ceiling height of at least 2.5 m for at least 75 percent of a dwelling's gross internal area.

Why are London flats so small?

London combines some of the highest land values in Europe with a fixed, densely built footprint, so floor area is at a premium. Much of the rental stock is period conversions cut into small units, and new-build economics push developers toward the minimum space standards rather than beyond them. The result is one of the smallest average flat sizes of any major city in the developed world.

How does a London flat compare to Paris or New York?

A London one-bed flat (about 46 m2) is close to the median Paris apartment (46 m2 intra-muros) and well below a typical New York one-bedroom (about 55 m2). London flats are larger than Hong Kong (about 23 m2 for a one-bed) or Tokyo (about 25 m2), but smaller than Berlin, Sydney, or most US cities.

What is the minimum bedroom size in London?

Under the Nationally Described Space Standard adopted by the London Plan, a single bedroom must be at least 7.5 m2 (about 81 sq ft) and a double bedroom at least 11.5 m2 (about 124 sq ft). Any habitable room must also have a floor-to-ceiling height of at least 2.5 m over three-quarters of its area.

Convert a London Apartment Size

Square Metres (m²)

Square Feet (ft²)

46 m² is approximately a one-bedroom flat in Paris.

Apartment Sizes by City

How London compares to Paris, Tokyo, New York, and Sydney.

Average Apartment Size in Paris

Paris median 46 m2 vs Ile-de-France, by apartment type.

UK Home Sizes

Average UK flat and house m2 by region, era, and tenure.

Studio Apartment Size UK

NDSS minimum 37 m2, pre-standard conversions, and the London uplift.

Flat vs House Size UK

1-bed flat 46 m2 vs 1-bed house 55 m2, with NDSS minimums.

Square Feet to Square Meters

Convert any apartment size from sq ft to m2 instantly.

About the author

Oliver Wakefield-Smith

Founder of Digital Signet, an independent research firm publishing data-led property, planning, and conversion tools. Content is sourced from ONS, Nationwide, RICS, MHCLG planning data, and UK building regulations. Confirm planning and regulatory figures with your local authority or a qualified professional.

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