Every London flat, measured.

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

18,500 flats measured

Best £/sqft£/m² first

3 listings · £8.05/sqft£86.65/m² median in Marylebone

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

4,893 sqft 455 m²

£5.76/sqft £62.00/m² 28% below Marylebone median

£28,167/mo £4,695 each (if split by room)

Upper Brook Street, Mayfair, London, W1K

6 bed 6 bath Marylebone

listed today Agent's site ↗

Floorplan

2,498 sqft 232 m²

£6.41/sqft £69.00/m² 20% below Marylebone median

£16,000/mo £4,000 each (if split by room)

Flat 72, 219 Baker, 219 Baker Street, London, NW1

4 bed 4 bath Marylebone

listed today avail 1 Nov Agent's site ↗

Floorplan

5,478 sqft 509 m²

£10.24/sqft £110.22/m² 27% above Marylebone 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 ↗

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.