18 Blackhall Road, Cambridge, CB4 3NJ
About 18 Blackhall Road
18 Blackhall Road is a two-bedroom semi-detached house in Cambridge (CB4 3NJ). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (December 2021) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, roof efficiency went from Good to Very Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 86), a 2-band jump.
One planning record on file: an extension approved in 2024. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£537/sq ft) was about 108.5% above the typical sold price in the postcode. Sold April 2022 for £329,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- GarageYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 15 December 2031
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
1 application on record at 18 Blackhall Road, Cambridge, CB4 3NJ
- Jun 2024Loft ConversionFullOutcome in report
Rear dormer roof extension and 1no roof light to front elevation.
- Council
- Cambridge City Council
Extension- Documents
- 12 docs on file
- Reference
- 24/01672/HFUL
Unlock 18 Blackhall Road, Cambridge, CB4 3NJ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£362,000
Modelled from EPC, postcode comparables.
£329,500
Recorded with HM Land Registry.
Sales timeline
28 April 2022Most recent
£329,500
Median price across the last 5 sales in CB4 3NJ: £365,000 (2022–2018).
Nearby sales in CB4 3NJ
Versus other Blackhall Road homes
On price per m², 18 Blackhall Road stands well clear of the street.
Price per m²
£5,781
Street avg £3,915
Floor Area
57 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.4 t/year
Street avg 3.1 t/year
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The neighbourhood at a glance
Crime
411/mo
Falling year-on-year across the wider district.
Closest school
0.6 km
Orchard Park Community Primary School. 18 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
53.9dB

Night-time· 23:00 – 07:00
44.7dB







