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.

18,686 flats measured

Best £/sqft£/m² first

15 listings · £4.78/sqft£51.45/m² median in Belsize Park

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.

3,480 sqft 323 m²

£4.31/sqft £46.39/m² 10% below Belsize Park median
£15,000/mo £3,750 each (if split by room)

Nutley Terrace, London

4 bed 4 bath Belsize Park

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

3,671 sqft 341 m²

£4.90/sqft £52.74/m²
£18,000/mo £3,000 each (if split by room)

Glenloch Road, London, NW3

6 bed 4 bath Belsize Park

listed today avail 16 Oct Share Portal ↗

2,209 sqft 205 m²

£5.79/sqft £62.32/m² 21% above Belsize Park median
£12,783/mo £2,557 each (if split by room)

Avenue Road, London, NW8

5 bed 4 bath Belsize Park

10 days on market Share Agent's site ↗

2,209 sqft 205 m²

£5.79/sqft £62.32/m² 21% above Belsize Park median
£12,783/mo £2,557 each (if split by room)

Avenue Road, St John's Wood, London, NW8

5 bed 4 bath Belsize Park

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

6,344 sqft 589 m²

£6.11/sqft £65.77/m² 28% above Belsize Park median
£38,783/mo £7,757 each (if split by room)

Lyndhurst Gardens, Belsize Park, NW3

5 bed 4 bath Belsize Park

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

1,358 sqft 126 m²

£6.84/sqft £73.63/m² 43% above Belsize Park median
£9,295/mo £2,324 each (if split by room)

Fitzjohns Avenue, Hampstead

4 bed 4 bath Belsize Park

listed yesterday avail 9 Nov Share Agent's site ↗

1,360 sqft 126 m²

£6.84/sqft £73.63/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohns Avenue, London, NW3

4 bed 3 bath Belsize Park

listed today avail 2 Nov Share Agent's site ↗

1,358 sqft 126 m²

£6.85/sqft £73.73/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohn's Avenue, Hampstead NW3

4 bed 4 bath Belsize Park

listed today avail 2 Nov Share Agent's site ↗

1,358 sqft 126 m²

£6.85/sqft £73.73/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohns Avenue, Hampstead, NW3

4 bed 3 bath Belsize Park

listed yesterday avail 2 Nov Share Agent's site ↗

1,358 sqft 126 m²

£6.85/sqft £73.73/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohns Avenue, Hampstead, London, NW3

4 bed 3 bath Belsize Park

3 days on market avail 2 Nov Share Agent's site ↗

1,358 sqft 126 m²

£6.85/sqft £73.73/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohns Avenue, Hampstead, NW3

4 bed 4 bath Belsize Park

3 days on market Share Agent's site ↗

1,358 sqft 126 m²

£6.85/sqft £73.73/m² 43% above Belsize Park median
£9,299/mo £2,325 each (if split by room)

Fitzjohns Avenue, NW3

4 bed 3 bath Belsize Park

3 days on market avail 2 Nov Share Agent's site ↗

size unknown

—/sqft/m²
£4,400/mo £1,100 each (if split by room)

Farjeon House, London, NW6

4 bed 1 bath Belsize Park

2 days on market avail 30 Sep Share Agent's site ↗

size unknown

—/sqft/m² short let
£14,500/mo

Queensmead, St. Johns Wood Park, London, NW8

5 bed 3 bath Belsize Park

13 days on market avail 2 Oct Share Agent's site ↗

size unknown

—/sqft/m²
£39,000/mo £9,750 each (if split by room)

St Edmunds Terrace, Primrose Hill, NW8

4 bed 5 bath Belsize Park

6 days on market avail now 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.