20 Blackthorn Close, Cambridge, CB4 1FZ
About 20 Blackthorn Close
20 Blackthorn Close is a semi-detached house in Cambridge (CB4 1FZ). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (March 2016) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected.
Untraded for 30 years, with the last transfer in August 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 71 m² the property is well over the postcode median (52 m² across 66 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £401,000 sits 472.9% above the 1996 sale of £70,000. On a £-per-square-foot basis, the last sale (£92/sq ft) was about 64.2% below the postcode norm.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 03 Mar 2026
EPC Rating
Certificate validity
Expired on 3 March 2026
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Planning history
20 Blackthorn Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
20 Blackthorn Close's modelled value sits at over four times its earliest registered sale price (1996).
£401,000
Modelled from EPC, postcode comparables.
£70,000
Recorded with HM Land Registry.
Sales timeline
15 August 1996Most recent
£70,000
Median price across the last 5 sales in CB4 1FZ: £240,000 (2026–2025).
Nearby sales in CB4 1FZ
48 Blackthorn Close, Cambridge, CB4 1FZ
Sold May 2026
£215,00038 Blackthorn Close, Cambridge, CB4 1FZ
Sold Aug 2025
£240,00060 Blackthorn Close, Cambridge, CB4 1FZ
Sold Jun 2025
£200,00051 Blackthorn Close, Cambridge, CB4 1FZ
Sold May 2025
£272,50079 Blackthorn Close, Cambridge, CB4 1FZ
Sold Mar 2025
£280,000
Versus other Blackthorn Close homes
Price per m² for 20 Blackthorn Close lags the street by a wide margin.
Price per m²
£986
Street avg £3,745
Floor Area
71 m²
Street avg 54 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.2 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
411/mo
Falling year-on-year across the wider district.
Nearest stop
1.7 km
Cambridge North Rail Station — railway station.
Closest school
0.3 km
North Cambridge Academy. 24 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
50.3dB

Night-time· 23:00 – 07:00
40.2dB







