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.

18,556 flats measured

Best £/sqft£/m² first

12 listings · £2.78/sqft£29.92/m² median in Sydenham

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.

1,195 sqft 111 m²

£2.30/sqft £24.76/m² 17% below Sydenham median
£2,750/mo £688 each (if split by room) was £3,000

Vigilant Close London SE26

4 bed 2 bath Crystal Palace

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

784 sqft 73 m²

£2.74/sqft £29.49/m²
£2,150/mo £717 each (if split by room) was £2,200

Blakewood Court, Anerley Park, London, SE20

3 bed 1 bath Crystal Palace

25 days on market avail now Share Portal ↗

630 sqft 59 m²

£2.78/sqft £29.92/m²
£1,750/mo £875 each (if split by room) was £1,795

Kirkdale, London

2 bed 1 bath Forest Hill

26 days on market avail 1 Oct Share Agent's site ↗

532 sqft 49 m²

£3.10/sqft £33.37/m²
£1,650/mo £825 each (if split by room) was £1,750 ◷ relisted 1×

Anerley Park, LONDON

2 bed 1 bath Crystal Palace

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

400 sqft 37 m²

£3.36/sqft £36.17/m² 21% above Sydenham median
£1,345/mo was £1,450

Cintra Park, Anerley, Bromley, London

1 bed 1 bath Crystal Palace

14 days on market avail now Share Portal ↗

515 sqft 48 m²

£3.59/sqft £38.64/m² 29% above Sydenham median
£1,850/mo £925 each (if split by room) was £1,950

Blakewood Court, Anerley Park, London, SE20

2 bed 1 bath Crystal Palace

25 days on market avail now Share Portal ↗

size unknown

—/sqft/m²
£1,700/mo £850 each (if split by room) was £1,750

Dartmouth Road, London, SE26

2 bed 1 bath Forest Hill

24 days on market avail now Share Portal ↗

size unknown

—/sqft/m²
£1,250/mo was £1,350

Fransfield Grove, London, SE26

0 bed 1 bath Forest Hill

25 days on market avail now Share Portal ↗

size unknown

—/sqft/m²
£1,500/mo was £1,550

Greyfriars, London, SE26

1 bed 1 bath Forest Hill

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

size unknown

—/sqft/m²
£2,200/mo £1,100 each (if split by room) was £2,300

Newlands Park, London, SE26

2 bed 1 bath New Beckenham

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

size unknown

—/sqft/m²
£2,300/mo £1,150 each (if split by room) was £2,400

Sydenham Hill, London, SE26

2 bed 2 bath Crystal Palace

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

size unknown

—/sqft/m²
£2,000/mo £1,000 each (if split by room) was £2,100

Tannsfeld Road, London, SE26

2 bed 1 bath Lower Sydenham

16 days on market avail 3 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.