20 Blackhall Road, Cambridge, CB4 3NJ
About 20 Blackhall Road
20 Blackhall Road is a 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 (May 2025) shows a C (score 69), just inside the C band. When first surveyed in January 2022 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 86).
Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Across 1996–2022, sale prices on this property compounded at 7.6% per year. On a £-per-square-foot basis, the last sale (£595/sq ft) was about 86.1% above the typical sold price in the postcode. Most recent transfer: June 2022 at £365,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2023.
Know exactly what you're buying at 20 Blackhall Road
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
Hot water system upgraded
More low energy lighting installed
Planning history
A recent planning application at 20 Blackhall Road was refused — worth checking the council file.
- May 2023New BuildFullIn report
Proposed Detached Dwelling.
- Agent
- MT ARCHITECTURE LTD
- Council
- Cambridge City Council
- Documents
- 23 docs on file
- Reference
- 23/00713/FUL
We flagged 2 things worth checking at 20 Blackhall Road
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.
- Signs of HMO activity in the area
- A planning decision worth checking
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Sales history & valuation
Price for 20 Blackhall Road has grown more than fourfold since the 1996 starting point.
£359,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 26 years.
£365,000
Growth on file: 7.6% per year over 26 years.
Sales timeline
30 June 2022Most recent
£365,000
+386.7%over 24 years7 August 1997
£75,000
+37.6%over 1 year16 May 1996
£54,500
Median price across the last 5 sales in CB4 3NJ: £360,000 (2022–2018).
Nearby sales in CB4 3NJ
Everything we know about 20 Blackhall Road, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- A planning decision worth checking
Versus other Blackhall Road homes
On price per m², 20 Blackhall Road stands well clear of the street.
Price per m²
£6,404
Street avg £3,837
Floor Area
57 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.3 t/year
Street avg 3.1 t/year
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The neighbourhood at a glance
Crime
7/mo
Steady 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
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
44.7dB