GaffFinder

London lettings, by the square foot

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Every London flat, measured.

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

18,593 flats measured

Best £/sqft£/m² first

5 listings · £2.65/sqft£28.52/m² median in SE12

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.

1,143 sqft 106 m²

£2.19/sqft £23.57/m² 17% below SE12 median
£2,500/mo £833 each (if split by room)

Grove Park SE12

3 bed 1 bath Chinbrook

6 days on market avail 28 Sep Share Agent's site ↗

952 sqft 88 m²

£2.36/sqft £25.40/m² 11% below SE12 median
£2,250/mo £750 each (if split by room)

Moon Court, Lyme Farm Road, Lee, London, SE12

3 bed 1 bath Blackheath Cator Estate

4 days on market avail 7 Nov Share Agent's site ↗

596 sqft 55 m²

£2.68/sqft £28.85/m²
£1,600/mo

Effingham Road, Lee

1 bed 1 bath Cordwell Estate

2 days on market Share Agent's site ↗

539 sqft 50 m²

£2.69/sqft £28.95/m²
£1,450/mo

Somertrees Avenue, LONDON, SE12

1 bed 1 bath Burnt Ash

6 days on market avail now Share Agent's site ↗

580 sqft 54 m²

£3.02/sqft £32.51/m² 14% above SE12 median
£1,750/mo £875 each (if split by room)

Lenham Road, Lee, London, SE12

2 bed 1 bath Cordwell Estate

3 days on market avail 28 Sep Share Portal ↗

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.