18a, Belsize Square, Camden, London, NW3 4HT
About 18a
18a is a semi-detached house in Camden, London, London (NW3 4HT). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to before 1900 and council tax band G. At 111 m² this is the 12th smallest of 23 units on EPC record in the building, where floor areas span 36–449 m². The building's EPC ratings span E to C across 23 units on file. The latest certificate (April 2019) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79).
At 111 m² it's 18.6% larger than the typical home in the postcode (94 m² median across 74 EPCs). Today's modelled estimate of £1,801,000 is 20.9% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£1,247/sq ft) was about 121.2% above the typical sold price in the postcode. Most recent transfer: December 2019 at £1,490,000.
Know exactly what you're buying at 18a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
18a has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 18a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
18a valuation sits well clear of the typical sold price in this postcode.
£1,801,000
Modelled from EPC, postcode comparables.
£1,490,000
Recorded with HM Land Registry.
Sales timeline
2 December 2019Most recent
£1,490,000
Median price across the last 5 sales in NW3 4HT: £1,000,000 (2024–2022).
Nearby sales in NW3 4HT
Flat 5, 8 Belsize Square, London, NW3 4HT
Sold Nov 2024
£1,090,000Flat B, 10 Belsize Square, London, NW3 4HT
Sold Sept 2023
£617,500Flat 4, 22 Belsize Square, London, NW3 4HT
Sold Aug 2022
£1,330,000Flat 5, 22 Belsize Square, London, NW3 4HT
Sold May 2022
£1,000,0004e, Belsize Square, London, NW3 4HT
Sold Mar 2022
£519,000
Everything we know about 18a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Belsize Square homes
Habitable Rooms for 18a runs comfortably ahead of the street norm.
Price per m²
£13,423
Street avg £9,397
Floor Area
111 m²
Street avg 92 m²
Habitable Rooms
5 rooms
Street avg 3 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.7 t/year
Similar properties nearby
1 Avenue House, Belsize Park Gardens, Camden
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1 Steeles Mews South, Camden
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1 Steeles Mews North, Camden
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1 Antrim Grove, Camden
NW3 4XP
1 Eton Garages, Lambolle Place, Camden
NW3 4PE
1 Lancaster Drive, Camden
NW3 4EY
1 Strathray Gardens, Camden
NW3 4PA
1 Steeles Studios, Haverstock Hill, Camden
NW3 4RN
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Belsize Square — bus stop.
Closest school
0.5 km
Holy Trinity CofE Primary School, NW3. 70 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
53.9dB

Night-time· 23:00 – 07:00
42.9dB