GaffFinder

London lettings, by the square foot

Saved Get alerts

Every London flat, measured.

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

18,579 flats measured

Best £/sqft£/m² first

6 listings · £3.69/sqft£39.72/m² median in Putney

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.

Property photo
Floorplan

841 sqft 78 m²

£4.16/sqft £44.78/m² 13% above Putney median
£3,500/mo £1,167 each (if split by room) was £3,750 ◷ relisted 1×

Bishops Mansions, Bishops Park Road, SW6

3 bed 1 bath Bishop’s Mansions

3 days on market avail 3 Oct Share Portal ↗
Property photo
Floorplan

429 sqft 40 m²

£4.90/sqft £52.74/m² 33% above Putney median
£2,100/mo ◷ relisted 1×

Frogmore, Wandsworth

1 bed 1 bath Putney

4 days on market Share Agent's site ↗

How we know the size

  1. 01

    We collect

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

  2. 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.

  3. 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.