Flat 4, 16 Belsize Park, London, NW3 4ES
About Flat 4
Flat 4 is a semi-detached house in London (NW3 4ES). It has a recorded floor area of 151 m² (around 1625 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (September 2022) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 72).
One planning application is currently pending a decision in 2024. At 151 m² the property is well over the postcode median (64 m² across 35 EPCs), placing it in the larger end of the local stock. Last sale on file: £1,700,000 in June 2023. Across the public record there are 5 sales, relatively high churn for a single property. Across 1999–2023, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £1,947,000 is 14.5% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£1,046/sq ft) was about 87.1% above the typical sold price in the postcode.
Know exactly what you're buying at Flat 4
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
Flat 4's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
- Mar 2024ExtensionFullIn report
Extension: Rear of property
Extension of existing rear roof terrace.
- Documents
- 12 docs on file
- Reference
- 2024/1130/P
We flagged 1 thing worth checking at Flat 4
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
Latest sale on Flat 4 was the highest on Land Registry record across the postcode.
£1,947,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 24 years.
£1,700,000
Growth on file: 6.9% per year over 24 years.
Sales timeline
13 June 2023Most recent
£1,700,000
+23.2%over 10 years22 July 2012
£1,380,000
+205.6%over 3 years12 May 2009
£451,607
-22.1%over 8 years4 July 2000
£580,000
+73.1%over 1 year19 February 1999
£335,000
Median price across the last 5 sales in NW3 4ES: £745,000 (2025–2023).
Nearby sales in NW3 4ES
Flat 3, 11 Belsize Park, London, NW3 4ES
Sold Mar 2025
£1,350,000Claridge House, Flat 4, 13 Belsize Park, London, NW3 4ES
Sold Oct 2023
£721,500Flat 4, 14 Belsize Park, London, NW3 4ES
Sold Jun 2023
£745,000Flat 1, 11 Belsize Park, London, NW3 4ES
Sold Apr 2023
£800,000Flat 5, 11 Belsize Park, London, NW3 4ES
Sold Jan 2023
£675,000
Everything we know about Flat 4, 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 Park homes
Floor Area for Flat 4 runs comfortably ahead of the street norm.
Price per m²
£11,258
Street avg £8,152
Floor Area
151 m²
Street avg 82 m²
Habitable Rooms
5 rooms
Street avg 3 rooms
CO₂ Emissions
7.2 t/year
Street avg 3.3 t/year
Similar properties nearby
17a, Flat 2, Lambolle Road, Camden
NW3 4HS
15a, Flat C, Eton Road
NW3 4SS
23a, Garden Flat, Belsize Square, Camden
NW3 4HU
15a, Flat A, Eton Road, Camden
NW3 4SS
15a, Flat B, Eton Road
NW3 4SS
12a, Flat 2, Belsize Park
NW3 4ES
12a, Flat 1, Belsize Park
NW3 4ES
25a, Flat 1, Elizabeth Mews
NW3 4UH
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. 67 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
53.1dB
Night-time· 23:00 – 07:00
42.0dB