Every London flat, measured.

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

18,576 flats measured

Best £/sqft£/m² first

3 listings · £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.

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 today avail now Agent's site ↗

Floorplan

637 sqft 59 m²

£12.24/sqft £131.75/m² 49% above Mayfair median

£7,800/mo

Charles Street, Mayfair, London, W1J

1 bed 1 bath Chinatown

listed today avail now Agent's site ↗

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 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.