12a, Basement Flat, South Hill Park, London, NW3 2SB
About 12a
12a is a detached house in London (NW3 2SB). It has a recorded floor area of 65 m² (around 702 sq ft) and construction records dating it to 1900-1929. The latest certificate (March 2010) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 76). The latest certificate is from March 2010, so improvements made since then won't be reflected.
Today's modelled estimate of £623,000 sits 165.1% above the 2024 sale of £235,000. On a £-per-square-foot basis, the last sale (£335/sq ft) was about 35.2% below the postcode norm. At 65 m² it's 22.4% smaller than the typical home in the postcode (84 m² median across 23 EPCs). Last sale on file: £235,000 in October 2024.
Know exactly what you're buying at 12a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
12a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 31 Mar 2020
EPC Rating
Planning history
12a has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
£623,000
Modelled from EPC, postcode comparables.
£235,000
Recorded with HM Land Registry.
Sales timeline
22 October 2024Most recent
£235,000
Median price across the last 5 sales in NW3 2SB: £1,000,000 (2024–2022).
Nearby sales in NW3 2SB
6a, South Hill Park, Camden, London, NW3 2SB
Sold Dec 2024
£654,00012a, South Hill Park, Camden, London, NW3 2SB
Sold Oct 2024
£882,0002a, South Hill Park, Camden, London, NW3 2SB
Sold Mar 2024
£5,000,00030d, South Hill Park, London, NW3 2SB
Sold Jul 2022
£1,150,000Flat 1, 2 South Hill Park, London, NW3 2SB
Sold Jun 2022
£1,000,000
Everything we know about 12a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other South Hill Park homes
Habitable Rooms for 12a lags the street by a wide margin.
Price per m²
£3,604
Street avg £8,779
Floor Area
65 m²
Street avg 82 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.6 t/year
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116a, Flat 2, Haverstock Hill, Camden
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114a, Flat 1, Haverstock Hill, Camden
NW3 2BB
128a, Flat B, Haverstock Hill
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12a, First Floor Flat, South Hill Park
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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
0.1 km
Hampstead Heath Station — railway station.
Closest school
0.4 km
Rosary Catholic Primary School. 54 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
50.0dB

Night-time· 23:00 – 07:00
40.3dB