Every London flat, measured.

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

18,824 flats measured

Best £/sqft£/m² first

7 listings · £10.10/sqft£108.72/m² median in W1K

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

533 sqft 50 m²

£6.91/sqft £74.38/m² 32% below W1K median

£3,683/mo ◷ relisted 2×

Avenfield House, Park Lane, Mayfair

1 bed 1 bath Marylebone

3 days on market avail now Portal ↗

Floorplan

816 sqft 76 m²

£10.62/sqft £114.31/m²

£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

£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

£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

£8,667/mo ◷ relisted 1×

Green Street, W1K

1 bed 1 bath Marylebone

13 days on market Agent's site ↗

Floorplan

1,645 sqft 153 m²

£11.06/sqft £119.05/m²

£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

4,291 sqft 399 m²

£12.62/sqft £135.84/m² 25% above W1K 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 ↗

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.