28b, Belsize Square, London, NW3 4HU
About 28b
28b is a mid-terrace house in London (NW3 4HU). It has a recorded floor area of 73 m² (around 786 sq ft) and construction records dating it to 1900-1929. At 73 m² this is the 9th smallest of 15 units on EPC record in the building, where floor areas span 45–127 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (76 versus a worst of 39). The latest certificate (May 2024) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since June 2009. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 82).
Held since March 2011 — that's 15 years off the open market, well above the local norm. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 1998–2011, sale prices on this property compounded at 10.5% per year. On a £-per-square-foot basis, the last sale (£1,186/sq ft) was about 127.4% above the typical sold price in the postcode.
Know exactly what you're buying at 28b
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
Heating controls upgraded for better temperature management
Wall insulation improved
More low energy lighting installed
Planning history
28b has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 28b
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
Sale price has grown by over 3x since 1998.
£896,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.5% per year over 13 years.
£932,000
Growth on file: 10.5% per year over 13 years.
Sales timeline
4 March 2011Most recent
£932,000
+6.5%over 3 years15 May 2007
£875,000
+250.0%over 9 years14 January 1998
£250,000
Median price across the last 5 sales in NW3 4HU: £675,000 (2024–2020).
Nearby sales in NW3 4HU
27c, Belsize Square, London, NW3 4HU
Sold May 2024
£594,00027b, Belsize Square, London, NW3 4HU
Sold May 2024
£675,000Flat C, 23 Belsize Square, London, NW3 4HU
Sold Nov 2022
£1,550,000Flat A, 23 Belsize Square, London, NW3 4HU
Sold Mar 2021
£870,000Flat B, 23 Belsize Square, London, NW3 4HU
Sold Jun 2020
£645,000
Everything we know about 28b, 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
28b outperforms the street on epc rating by a wide margin.
Price per m²
£12,767
Street avg £10,961
Floor Area
73 m²
Street avg 78 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 3.8 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
0.2 km
Belsize Square — bus stop.
Closest school
0.6 km
Holy Trinity CofE Primary School, NW3. 71 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