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.

18,419 flats measured

Best £/sqft£/m² first

9 listings · £3.62/sqft£38.97/m² median in SW12

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.

1,910 sqft 177 m²

£3.12/sqft £33.58/m² 14% below SW12 median
£5,950/mo £992 each (if split by room) was £6,000

Old Hospital Close, Balham

6 bed 3 bath Balham

11 days on market Share Portal ↗

1,040 sqft 97 m²

£3.27/sqft £35.20/m² 10% below SW12 median
£3,400/mo £850 each (if split by room)

Kings Avenue, Balham, London, SW12

4 bed 2 bath Balham

12 days on market Share Agent's site ↗

1,729 sqft 161 m²

£3.76/sqft £40.47/m²
£6,500/mo £1,083 each (if split by room) was £6,600 ◷ relisted 1×

Harberson Road, London, SW12

6 bed 3 bath Balham

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

1,000 sqft 93 m²

£3.90/sqft £41.98/m²
£3,900/mo £975 each (if split by room)

Ryde Vale Road, Balham

4 bed 1 bath Balham

25 days on market Share Portal ↗

1,167 sqft 108 m²

£4.28/sqft £46.07/m² 18% above SW12 median
£5,000/mo £1,250 each (if split by room)

Scholars Road, Balham, London, SW12

4 bed 2 bath Balham

listed today avail 10 Oct Share Portal ↗

1,137 sqft 106 m²

£4.40/sqft £47.36/m² 22% above SW12 median
£5,000/mo £1,250 each (if split by room)

Pentney Road, London, SW12

4 bed 2 bath Balham

5 days on market avail 30 Oct Share Agent's site ↗

size unknown

—/sqft/m²
£3,800/mo £950 each (if split by room)

Balham, SW12

4 bed 1 bath Balham

4 days on market avail 21 Nov Share Agent's site ↗

size unknown

—/sqft/m²
£6,600/mo £1,100 each (if split by room)

Calbourne Road, London, SW12

6 bed 3 bath Balham

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

size unknown

—/sqft/m²
£6,000/mo £1,200 each (if split by room)

Ravenswood Road, London, SW12

5 bed 2 bath Balham

listed today avail 2 Oct 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.