63d, Belsize Park Gardens, London, NW3 4JN
About 63d
63d is a semi-detached house in London (NW3 4JN). It has a recorded floor area of 104 m² (around 1119 sq ft) and construction records dating it to 1900-1929. At 104 m² this is the 17th smallest of 23 units on EPC record in the building, where floor areas span 47–129 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (January 2021) shows a C (score 74). The rating has held steady at C across 2 certificates since December 2010. Between certificates, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to B (score 81).
Across 2011–2023, sale prices on this property compounded at 3.4% per year. Today's modelled estimate of £1,443,000 is 12.5% below the 2023 sale of £1,650,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£1,474/sq ft) was about 105.6% above the typical sold price in the postcode. One planning record on file: new windows approved in 2018. Past consents include new windows, meaningful when judging how the property has evolved. At 104 m² it's 19.5% larger than the typical home in the postcode (87 m² median across 36 EPCs). Last sale on file: £1,650,000 in April 2023.
Know exactly what you're buying at 63d
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
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
More low energy lighting installed
Planning history
- Mar 2018RenovationFullIn report
Replace all windows to second floor flat with double glazed timber framed windows to fit within existing openings. Install new window to second floor side elevation.
New Windows- Documents
- 8 docs on file
- Reference
- 2018/0679/P
We flagged 1 thing worth checking at 63d
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
63d valuation sits well clear of the typical sold price in this postcode.
£1,443,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.4% per year over 12 years.
£1,650,000
Growth on file: 3.4% per year over 12 years.
Sales timeline
20 April 2023Most recent
£1,650,000
+5.8%over 8 years17 March 2015
£1,560,000
+41.8%over 3 years30 March 2011
£1,100,000
Median price across the last 5 sales in NW3 4JN: £625,000 (2025–2024).
Nearby sales in NW3 4JN
67d, Belsize Park Gardens, London, NW3 4JN
Sold Apr 2025
£1,530,00063b 63e, Belsize Park Gardens, Camden, London, NW3 4JN
Sold Nov 2024
£625,00059 Belsize Park Gardens, Camden, London, NW3 4JN
Sold Oct 2024
£425,000Garden Flat, 61 Belsize Park Gardens, Camden, London, NW3 4JN
Sold Jul 2024
£30,00067b, Belsize Park Gardens, London, NW3 4JN
Sold May 2024
£785,000
Everything we know about 63d, 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 Gardens homes
On price per m², 63d stands well clear of the street.
Price per m²
£15,865
Street avg £9,196
Floor Area
104 m²
Street avg 89 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.4 t/year
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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
0.3 km
Primrose Gardens — bus stop.
Closest school
0.6 km
Rosary Catholic Primary School. 74 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
53.2dB

Night-time· 23:00 – 07:00
42.1dB