Every London flat, measured.

The portals won’t let you rank by size. We read the floorplans, so you can.

18,825 flats measured

Best £/sqft£/m² first

241–288 of 358 · £8.17/sqft£87.94/m² median in Mayfair

Sizes are estimates: an AI model reads most of them from the floorplan, and it can be wrong — so can the £/sqft£/m² worked out from them. Check with the agent before you rely on one.

Floorplan

947 sqft 88 m²

£10.07/sqft £108.39/m² 23% above Mayfair median

£9,533/mo

Duke Street, Mayfair, London, W1K

1 bed 1 bath Marylebone

7 days on market avail now Agent's site ↗

Floorplan

947 sqft 88 m²

£10.07/sqft £108.39/m² 23% above Mayfair median

£9,533/mo

Duke Street, Mayfair, London, W1K

1 bed 1 bath Marylebone

13 days on market Agent's site ↗

266 sqft 25 m²

£10.10/sqft £108.72/m² 24% above Mayfair median

£2,686/mo

Hill Street, Mayfair, London W1

0 bed 1 bath Chinatown

6 days on market avail now Portal ↗

Floorplan

5,478 sqft 509 m²

£10.24/sqft £110.22/m² 25% above Mayfair median

£56,117/mo £11,223 each (if split by room)

Tilney Street, Mayfair, London, W1K

5 bed 5 bath Marylebone

listed today avail now Agent's site ↗

1,012 sqft 94 m²

£10.28/sqft £110.65/m² 26% above Mayfair median

£10,400/mo £5,200 each (if split by room)

Duke Street, Mayfair W1K

2 bed 2 bath Marylebone

5 days on market Portal ↗

Floorplan

1,177 sqft 109 m²

£10.31/sqft £110.98/m² 26% above Mayfair median

£12,133/mo £4,044 each (if split by room)

Portman Square, London, W1H

3 bed 3 bath Marylebone

24 days on market avail now Portal ↗

Floorplan

2,517 sqft 234 m²

£10.33/sqft £111.19/m² short let

£26,000/mo

New Cavendish Street, London, W1W

3 bed 4 bath East Marylebone

5 days on market avail now Agent's site ↗

Floorplan

561 sqft 52 m²

£10.43/sqft £112.27/m² 28% above Mayfair median

£5,850/mo

Mount Street, Mayfair

1 bed 1 bath Chinatown

Also listed here £5,850 same price ↗

4 days on market Agent's site ↗

Floorplan

268 sqft 25 m²

£10.51/sqft £113.13/m² 29% above Mayfair median

£2,817/mo

Hill Street, London, W1J

0 bed 1 bath Chinatown

5 days on market avail now Agent's site ↗

Floorplan

268 sqft 25 m²

£10.51/sqft £113.13/m² 29% above Mayfair median

£2,817/mo

Hill Street, London

0 bed 1 bath Chinatown

listed yesterday avail now Agent's site ↗

Floorplan

268 sqft 25 m²

£10.51/sqft £113.13/m² 29% above Mayfair median

£2,817/mo

Hill Street, Mayfair, London, W1J

0 bed 1 bath Chinatown

5 days on market avail now Portal ↗

Floorplan

1,803 sqft 168 m²

£10.51/sqft £113.13/m² 29% above Mayfair median

£18,950/mo £6,317 each (if split by room)

Upper Grosvenor Street, Mayfair, W1K

3 bed 3 bath Marylebone

4 days on market avail now Agent's site ↗

Floorplan

2,468 sqft 229 m²

£10.53/sqft £113.34/m² short let

£26,000/mo ◷ relisted 1×

New Cavendish Street, London, W1W

3 bed 3 bath East Marylebone

11 days on market avail now Agent's site ↗

Floorplan

266 sqft 25 m²

£10.59/sqft £113.99/m² 30% above Mayfair median

£2,817/mo

39 HILL STREET, London, W1J

0 bed 1 bath Chinatown

6 days on market avail now Agent's site ↗

Floorplan

1,146 sqft 106 m²

£10.59/sqft £113.99/m² short let

£12,133/mo ◷ relisted 1×

Essex Street, London, WC2R

3 bed 3 bath Chinatown

26 days on market avail now Portal ↗

Floorplan

1,146 sqft 106 m²

£10.59/sqft £113.99/m² short let

£12,133/mo

Essex Street, London, WC2R

3 bed 3 bath Chinatown

25 days on market avail now Agent's site ↗

Floorplan

266 sqft 25 m²

£10.59/sqft £113.99/m² 30% above Mayfair median

£2,817/mo

Hill Street, London, W1J

0 bed 1 bath Chinatown

6 days on market Agent's site ↗

Floorplan

266 sqft 25 m²

£10.59/sqft £113.99/m² 30% above Mayfair median

£2,817/mo

Hill Street, Mayfair

0 bed 1 bath Chinatown

6 days on market avail now Agent's site ↗

Floorplan

266 sqft 25 m²

£10.59/sqft £113.99/m² 30% above Mayfair median

£2,817/mo

Mayfair, London, W1J

0 bed 1 bath Chinatown

listed today avail now Portal ↗

Floorplan

5,921 sqft 550 m²

£10.61/sqft £114.20/m² 30% above Mayfair median

£62,833/mo £15,708 each (if split by room)

Park Lane, Mayfair W1K

4 bed 5 bath Chinatown

10 days on market avail now Agent's site ↗

Floorplan

816 sqft 76 m²

£10.62/sqft £114.31/m² 30% above Mayfair median

£8,667/mo ◷ relisted 1×

Green Street, London, W1K

1 bed 1 bath Marylebone

12 days on market avail now Agent's site ↗

Floorplan

816 sqft 76 m²

£10.62/sqft £114.31/m² 30% above Mayfair median

£8,667/mo ◷ 53 days on market

Green Street, Mayfair, London, W1K

1 bed 1 bath Marylebone

Also listed here £8,667 same price ↗

11 days on market avail now Portal ↗

Floorplan

816 sqft 76 m²

£10.62/sqft £114.31/m² 30% above Mayfair median

£8,667/mo ◷ relisted 1×

Green Street, Mayfair, London, W1K

1 bed 1 bath Marylebone

13 days on market Agent's site ↗

Floorplan

816 sqft 76 m²

£10.62/sqft £114.31/m² 30% above Mayfair median

£8,667/mo ◷ relisted 1×

Green Street, W1K

1 bed 1 bath Marylebone

13 days on market Agent's site ↗

Floorplan

320 sqft 30 m²

£10.94/sqft £117.76/m² short let

£3,500/mo ◷ relisted 1×

Fletcher Buildings,, Covent Garden, London, WC2B

1 bed 1 bath Chinatown

4 days on market Agent's site ↗

Floorplan

1,645 sqft 153 m²

£11.06/sqft £119.05/m² 35% above Mayfair median

£18,200/mo £9,100 each (if split by room) ◷ relisted 1×

Grosvenor Hill, Mayfair, London, W1K

2 bed 2 bath Chinatown

6 days on market avail now Portal ↗

Floorplan

4,500 sqft 418 m²

£11.11/sqft £119.59/m² 36% above Mayfair median

£50,000/mo £12,500 each (if split by room) was £54,000

Upper Grosvenor Street, Mayfair, W1K 2NA

4 bed 4 bath Chinatown

12 days on market Portal ↗

Floorplan

479 sqft 45 m²

£11.31/sqft £121.74/m² 38% above Mayfair median

£5,417/mo

Park Crescent, Marylebone, London W1B

1 bed 1 bath Marylebone

18 days on market avail 5 Nov Agent's site ↗

Floorplan

1,846 sqft 171 m²

£11.50/sqft £123.78/m² 41% above Mayfair median

£21,233/mo £7,078 each (if split by room)

Duke Street, Mayfair

3 bed 4 bath Marylebone

18 days on market avail now Agent's site ↗

1,841 sqft 171 m²

£11.53/sqft £124.11/m² 41% above Mayfair median

£21,233/mo £7,078 each (if split by room)

Duke Street, Mayfair, W1

3 bed 4 bath Marylebone

5 days on market Agent's site ↗

Floorplan

816 sqft 76 m²

£11.68/sqft £125.72/m² 43% above Mayfair median

£9,533/mo

Green Street, London

1 bed 1 bath Marylebone

11 days on market avail now Portal ↗

Floorplan

621 sqft 58 m²

£12.21/sqft £131.43/m² 49% above Mayfair median

£7,583/mo

Charles Street, Mayfair, London, W1J

1 bed 1 bath Chinatown

listed yesterday avail now Agent's site ↗

Floorplan

4,607 sqft 428 m²

£12.23/sqft £131.64/m² 50% above Mayfair median

£56,333/mo £14,083 each (if split by room)

Mount Street, Mayfair, London, W1K

4 bed 4 bath Marylebone

4 days on market avail 30 Sep Agent's site ↗

Floorplan

637 sqft 59 m²

£12.24/sqft £131.75/m² 50% above Mayfair median

£7,800/mo

Charles Street, Mayfair, London, W1J

1 bed 1 bath Chinatown

listed yesterday avail now Agent's site ↗

Floorplan

934 sqft 87 m²

£12.29/sqft £132.29/m² 50% above Mayfair median

£11,483/mo £5,742 each (if split by room)

Green Street, London, W1K

2 bed 2 bath Marylebone

11 days on market avail 9 Oct Agent's site ↗

Floorplan

934 sqft 87 m²

£12.29/sqft £132.29/m² 50% above Mayfair median

£11,483/mo £5,742 each (if split by room)

Green Street, Mayfair, London, W1K

2 bed 2 bath Marylebone

13 days on market avail 9 Oct Portal ↗

Floorplan

4,291 sqft 399 m²

£12.62/sqft £135.84/m² 54% above Mayfair median

£54,167/mo £13,542 each (if split by room) ◷ relisted 1×

Upper Grosvenor Street, Mayfair, W1K

4 bed 4 bath Chinatown

24 days on market avail now Agent's site ↗

Floorplan

2,475 sqft 230 m²

£12.96/sqft £139.50/m² 59% above Mayfair median

£32,067/mo £10,689 each (if split by room)

South Street, Mayfair

3 bed 3 bath Chinatown

12 days on market Agent's site ↗

Floorplan

2,410 sqft 224 m²

£13.31/sqft £143.27/m² 63% above Mayfair median

£32,067/mo £10,689 each (if split by room)

South Street, Mayfair, W1K

3 bed 3 bath Chinatown

18 days on market avail now Agent's site ↗

1,120 sqft 104 m²

£13.95/sqft £150.16/m² 71% above Mayfair median

£15,622/mo £7,811 each (if split by room)

Prince of Wales Terrace, London, WC2N

2 bed 2 bath Chinatown

11 days on market Portal ↗

Floorplan

2,159 sqft 201 m²

£14.05/sqft £151.23/m² 72% above Mayfair median

£30,333/mo £10,111 each (if split by room)

The Mansion, Marylebone Lane, City Of Westminster, London

3 bed 4 bath Marylebone

19 days on market Portal ↗

Floorplan

2,158 sqft 200 m²

£14.06/sqft £151.34/m² 72% above Mayfair median

£30,333/mo £10,111 each (if split by room)

9 Marylebone Lane, Marylebone, London, W1U

3 bed 3 bath Marylebone

7 days on market avail now Agent's site ↗

Floorplan

614 sqft 57 m²

£14.47/sqft £155.75/m² 77% above Mayfair median

£8,883/mo was £10,036

Welbeck Street, Marylebone, London, W1G

1 bed 1 bath Marylebone

5 days on market Agent's site ↗

Floorplan

2,165 sqft 201 m²

£15.01/sqft £161.57/m² 84% above Mayfair median

£32,500/mo £10,833 each (if split by room)

One Carrington Street, Mayfair, London W1J

3 bed 4 bath Chinatown

17 days on market avail 8 Sep 2027 Agent's site ↗

Floorplan

3,940 sqft 366 m²

£15.40/sqft £165.76/m² 88% above Mayfair median

£60,667/mo £15,167 each (if split by room)

Mount Street, London

4 bed 4 bath Marylebone

6 days on market avail now Agent's site ↗

Floorplan

3,940 sqft 366 m²

£15.40/sqft £165.76/m² 88% above Mayfair median

£60,667/mo £15,167 each (if split by room)

Penthouse, Mount Street, Mayfair, London, W1K

4 bed 4 bath Marylebone

5 days on market avail 30 Sep Agent's site ↗

Floorplan

1,059 sqft 98 m²

£16.16/sqft £173.94/m² 98% above Mayfair median

£17,117/mo

The OWO Residences by Raffles, Westminster SW1

1 bed 1 bath Chinatown

12 days on market avail 20 Nov Portal ↗

Floorplan

2,027 sqft 188 m²

£17.10/sqft £184.06/m² 109% above Mayfair median

£34,667/mo £11,556 each (if split by room)

Charles Street, London, W1X W1J

3 bed 3 bath Chinatown

listed yesterday avail now Agent's site ↗

How we know the size

01

We collect

Every new flat to rent in London, checked through the day, seven days a week.
02

We read the floorplan

A vision model reads the plan the way you would — room by room, taking the dimensions printed on it. It is an AI estimate, and it can be wrong.
03

We measure

That gives a square footage, and a price per square foot. You can sort and filter on both. The portal offers neither.