Every London flat, measured.

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

18,572 flats measured

Best £/sqft£/m² first

1–48 of 139 · £8.19/sqft£88.16/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.

1,073 sqft 100 m²

£3.57/sqft £38.43/m² 56% below Mayfair median

£3,835/mo

Richmond Buildings, London, W1D

1 bed 1 bath East Marylebone

2 days on market avail 22 Sep 2027 Agent's site ↗

Floorplan

1,012 sqft 94 m²

£3.85/sqft £41.44/m² 53% below Mayfair median

£3,900/mo

Old Bond Street, London, W1S

1 bed 1 bath Chinatown

4 days on market avail now Agent's site ↗

Floorplan

1,609 sqft 149 m²

£4.17/sqft £44.89/m² 49% below Mayfair median

£6,717/mo £3,359 each (if split by room)

38 St Martins Lane, Fitzrovia & Covent Garden

2 bed 2 bath Chinatown

4 days on market Agent's site ↗

Floorplan

1,582 sqft 147 m²

£4.25/sqft £45.75/m² 48% below Mayfair median

£6,717/mo £3,359 each (if split by room) ◷ relisted 1×

St Martin's Lane, Covent Garden WC2

2 bed 2 bath Chinatown

6 days on market avail now Agent's site ↗

Floorplan

1,573 sqft 146 m²

£4.27/sqft £45.96/m² 48% below Mayfair median

£6,717/mo £3,359 each (if split by room) ◷ relisted 1×

St Martins Lane, Covent Garden, WC2N

2 bed 2 bath Chinatown

6 days on market Agent's site ↗

Floorplan

849 sqft 79 m²

£4.34/sqft £46.72/m² 47% below Mayfair median

£3,683/mo

Manchester Street, Marylebone

1 bed 1 bath Marylebone

2 days on market Agent's site ↗

Floorplan

635 sqft 59 m²

£4.72/sqft £50.81/m² 42% below Mayfair median

£3,000/mo £1,500 each (if split by room)

6 Upper John Street, London, W1F

2 bed 2 bath East Marylebone

listed yesterday avail 10 Oct Portal ↗

Floorplan

834 sqft 77 m²

£4.78/sqft £51.45/m² 42% below Mayfair median

£3,987/mo £1,994 each (if split by room)

Floral Street, Fitzrovia & Covent Garden

2 bed 1 bath Chinatown

5 days on market Agent's site ↗

Floorplan

778 sqft 72 m²

£4.87/sqft £52.42/m² 41% below Mayfair median

£3,791/mo £1,896 each (if split by room) ◷ relisted 1×

St. Martin's Lane, Covent Garden, London, WC2N

2 bed 2 bath Chinatown

4 days on market avail 19 Oct Portal ↗

Floorplan

458 sqft 43 m²

£4.91/sqft £52.85/m² 40% below Mayfair median

£2,250/mo

Old Compton Street, Soho

1 bed 1 bath East Marylebone

listed yesterday avail 1 Oct Portal ↗

Floorplan

837 sqft 78 m²

£4.92/sqft £52.96/m² 40% below Mayfair median

£4,116/mo £2,058 each (if split by room)

Fitzrovia Apartments, W1W

2 bed 1 bath East Marylebone

3 days on market avail 3 Dec Portal ↗

Floorplan

764 sqft 71 m²

£4.96/sqft £53.39/m² 39% below Mayfair median

£3,792/mo £1,896 each (if split by room)

St Martin's Lane, Covent Garden WC2

2 bed 2 bath Chinatown

4 days on market avail 19 Oct Portal ↗

Floorplan

603 sqft 56 m²

£4.98/sqft £53.60/m² 39% below Mayfair median

£3,000/mo £1,500 each (if split by room)

25 Charles Street, London, W1J

2 bed 2 bath Chinatown

listed yesterday avail 10 Oct Portal ↗

Floorplan

425 sqft 39 m²

£5.29/sqft £56.94/m² 35% below Mayfair median

£2,250/mo

Tavistock Street, London WC2

1 bed 1 bath Chinatown

4 days on market avail 7 Nov Portal ↗

Floorplan

1,546 sqft 144 m²

£5.33/sqft £57.37/m² 35% below Mayfair median

£8,246/mo £4,123 each (if split by room)

Wardour Street, London, W1D

2 bed 2 bath Chinatown

3 days on market avail now Agent's site ↗

Floorplan

800 sqft 74 m²

£5.39/sqft £58.02/m² 34% below Mayfair median

£4,312/mo £2,156 each (if split by room)

Great Portland Street, Fitzrovia, London, W1W

2 bed 1 bath East Marylebone

4 days on market avail 27 Nov Portal ↗

Floorplan

908 sqft 84 m²

£5.51/sqft £59.31/m² 33% below Mayfair median

£5,000/mo £2,500 each (if split by room)

Wellington House, 70 Buckingham Gate, Westminster, London, SW1E

2 bed 2 bath Chinatown

6 days on market avail 6 Nov Agent's site ↗

Floorplan

904 sqft 84 m²

£5.53/sqft £59.52/m² 32% below Mayfair median

£4,996/mo £2,498 each (if split by room)

Carrington House, Hertford Street, Mayfair, London, W1J

2 bed 2 bath Chinatown

3 days on market avail 26 Oct Agent's site ↗

Floorplan

499 sqft 46 m²

£5.63/sqft £60.60/m² 31% below Mayfair median

£2,808/mo

Aria House, Craven Street, London, WC2N

0 bed 1 bath Chinatown

4 days on market avail now Portal ↗

Floorplan

368 sqft 34 m²

£5.65/sqft £60.82/m² 31% below Mayfair median

£2,080/mo

136/138 New Cavendish St (2)

1 bed 1 bath East Marylebone

2 days on market avail 5 Oct Agent's site ↗

Floorplan

440 sqft 41 m²

£5.68/sqft £61.14/m² 31% below Mayfair median

£2,500/mo

Hanson Street, Fitzrovia, London, W1W

1 bed 1 bath East Marylebone

3 days on market avail 30 Oct Portal ↗

Floorplan

1,236 sqft 115 m²

£5.70/sqft £61.35/m² 30% below Mayfair median

£7,042/mo £3,521 each (if split by room)

Reeves Mews, Mayfair

2 bed 2 bath Marylebone

3 days on market Agent's site ↗

Floorplan

4,893 sqft 455 m²

£5.76/sqft £62.00/m² 30% below Mayfair median

£28,167/mo £4,024 each (if split by room)

Upper Brook Street, Marble Arch, W1K

7 bed 5 bath Marylebone

Also listed here £47,667 short let ↗

4 days on market avail now Agent's site ↗

Floorplan

4,893 sqft 455 m²

£5.76/sqft £62.00/m² 30% below Mayfair median

£28,167/mo £4,024 each (if split by room)

Upper Brook Street, London, W1K

7 bed 7 bath Marylebone

2 days on market Portal ↗

Floorplan

570 sqft 53 m²

£5.89/sqft £63.40/m² 28% below Mayfair median

£3,358/mo £1,679 each (if split by room)

Riding House Street, London, W1W

2 bed 1 bath East Marylebone

4 days on market avail 4 Dec Portal ↗

Floorplan

1,203 sqft 112 m²

£5.90/sqft £63.51/m² 28% below Mayfair median

£7,100/mo £2,367 each (if split by room)

Hill Street, City Of Westminster, London

3 bed 2 bath Chinatown

listed today avail 28 Sep Portal ↗

Floorplan

4,772 sqft 443 m²

£5.90/sqft £63.51/m² 28% below Mayfair median

£28,167/mo £4,024 each (if split by room)

Upper Brook Street, Mayfair, London, W1K

7 bed 7 bath Marylebone

Also listed here £47,667 short let ↗

5 days on market Agent's site ↗

Floorplan

1,121 sqft 104 m²

£5.99/sqft £64.48/m² 27% below Mayfair median

£6,717/mo £3,359 each (if split by room)

Upper Wimpole Street, Marylebone Village, London W1G

2 bed 2 bath Marylebone

5 days on market avail 31 Oct Agent's site ↗

Floorplan

1,163 sqft 108 m²

£6.02/sqft £64.80/m² 26% below Mayfair median

£7,000/mo £3,500 each (if split by room)

Milford House, 190 Strand, WC2R

2 bed 2 bath Chinatown

5 days on market Agent's site ↗

Floorplan

446 sqft 41 m²

£6.07/sqft £65.34/m² 26% below Mayfair median

£2,708/mo

Lowndes Court, Fitzrovia & Covent Garden

1 bed 1 bath East Marylebone

5 days on market Agent's site ↗

Floorplan

463 sqft 43 m²

£6.08/sqft £65.44/m² 26% below Mayfair median

£2,817/mo

Hill Street, Mayfair, London, W1J

0 bed 1 bath Chinatown

3 days on market avail 30 Oct Portal ↗

1,163 sqft 108 m²

£6.37/sqft £68.57/m² 22% below Mayfair median

£7,410/mo £2,470 each (if split by room)

Hill Street, Mayfair W1J

3 bed 2 bath Chinatown

3 days on market Portal ↗

Floorplan

480 sqft 45 m²

£6.41/sqft £69.00/m² 22% below Mayfair median

£3,077/mo

Grafton Way, Fitzrovia, London, W1T

1 bed 1 bath East Marylebone

listed today avail 30 Oct Portal ↗

420 sqft 39 m²

£6.50/sqft £69.97/m² 21% below Mayfair median

£2,730/mo

Lowndes Court, W1F

1 bed 1 bath East Marylebone

4 days on market avail 7 Dec Agent's site ↗

Floorplan

1,050 sqft 98 m²

£6.58/sqft £70.83/m² 20% below Mayfair median

£6,912/mo £3,456 each (if split by room)

Berkeley Street, Mayfair

2 bed 2 bath Chinatown

Also listed here £6,912 same price ↗

6 days on market Agent's site ↗

Floorplan

1,015 sqft 94 m²

£6.65/sqft £71.58/m² 19% below Mayfair median

£6,750/mo £3,375 each (if split by room)

De Walden Street, Marylebone Village, W1G

2 bed 2 bath Marylebone

listed yesterday avail 2 Oct Portal ↗

398 sqft 37 m²

£6.66/sqft £71.69/m² 19% below Mayfair median

£2,650/mo £1,325 each (if split by room)

Brunswick Mansions, Handel Street, London, WC1N

2 bed 1 bath Chinatown

2 days on market avail now Portal ↗

Floorplan

819 sqft 76 m²

£6.67/sqft £71.80/m² 19% below Mayfair median

£5,460/mo

Grosvenor Hill, Mayfair, London, W1K

1 bed 2 bath Chinatown

5 days on market avail now Agent's site ↗

Floorplan

616 sqft 57 m²

£6.68/sqft £71.90/m² 18% below Mayfair median

£4,117/mo

Hallam Street, Fitzrovia, London, W1W

1 bed 1 bath East Marylebone

4 days on market avail 13 Nov Portal ↗

Floorplan

344 sqft 32 m²

£6.80/sqft £73.19/m² 17% below Mayfair median

£2,340/mo

Slingsby Place, Seven Dials WC2

0 bed 1 bath Chinatown

3 days on market avail 9 Nov Agent's site ↗

Floorplan

637 sqft 59 m²

£6.80/sqft £73.19/m² 17% below Mayfair median

£4,334/mo

Weymouth Street, Marylebone, London, W1W

1 bed 2 bath East Marylebone

Also listed here £7,258 short let ↗

4 days on market Agent's site ↗

343 sqft 32 m²

£6.82/sqft £73.41/m² 17% below Mayfair median

£2,340/mo

Slingsby Place, St Martin's Courtyard, WC2E

0 bed 1 bath Chinatown

3 days on market avail 1 Nov Agent's site ↗

Floorplan

341 sqft 32 m²

£6.86/sqft £73.84/m² 16% below Mayfair median

£2,340/mo

Slingsby Place, London, Covent Garden, WC2E

0 bed 1 bath Chinatown

3 days on market avail 9 Nov Agent's site ↗

409 sqft 38 m²

£6.89/sqft £74.16/m² 16% below Mayfair median

£2,817/mo

Hill Street, Mayfair W1

0 bed 1 bath Chinatown

3 days on market avail 30 Oct Portal ↗

Floorplan

1,130 sqft 105 m²

£6.90/sqft £74.27/m² 16% below Mayfair median

£7,800/mo £3,900 each (if split by room)

Devonshire Street, Marylebone

2 bed 2 bath Marylebone

listed yesterday Agent's site ↗

Floorplan

533 sqft 50 m²

£6.91/sqft £74.38/m² 16% below Mayfair median

£3,683/mo ◷ relisted 2×

Avenfield House, Park Lane, Mayfair

1 bed 1 bath Marylebone

2 days on market avail 28 Sep Portal ↗

Floorplan

1,006 sqft 93 m²

£6.96/sqft £74.92/m² 15% below Mayfair median

£7,000/mo £2,333 each (if split by room)

Maddox Street, London, W1S

3 bed 2 bath East Marylebone

5 days on market avail 28 Sep Portal ↗

Floorplan

1,496 sqft 139 m²

£7.02/sqft £75.56/m² 14% below Mayfair median

£10,500/mo £3,500 each (if split by room) ◷ relisted 1×

Strand, Gladstone House, WC2R

3 bed 3 bath Chinatown

listed yesterday 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.