4 Blackwell Hill, Northampton, NN4 9YB
About 4 Blackwell Hill
4 Blackwell Hill is a four-bedroom detached house in Northampton (NN4 9YB). It has a recorded floor area of 160 m² (around 1722 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (April 2016) returns a B (score 82), comfortably above the UK average. The latest certificate is from April 2016, so improvements made since then won't be reflected.
At 160 m² the property is well over the postcode median (91 m² across 24 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. One planning record on file: an extension approved in 2011. Past consents include an extension, meaningful when judging how the property has evolved. Across 2003–2022, sale prices on this property compounded at 5.4% per year. On a £-per-square-foot basis, the last sale (£244/sq ft) was about 48.6% above the typical sold price in the postcode. Last sale on file: £420,000 in December 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms2
Everything you need to know about 4 Blackwell Hill
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Energy performance
4 Blackwell Hill ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 24 Apr 2026
EPC Rating
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Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
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Planning history
Council records include a two-storey side extension at 4 Blackwell Hill.
1 application on record at 4 Blackwell Hill, Northampton, NN4 9YB
- Aug 2011ExtensionFullOutcome in report
Extension: Two storey · Side of property
Two storey side extension (as amended by revised plans received on 27/07/11)
- Documents
- 21 docs on file
- Reference
- N/2011/0622
Unlock 4 Blackwell Hill, Northampton, NN4 9YB's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full
- The 21 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 4 Blackwell Hill was the highest on Land Registry record across the postcode.
£437,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 19 years.
£420,000
Growth on file: 5.4% per year over 19 years.
Sales timeline
21 December 2022Most recent
£420,000
+176.3%over 19 years12 August 2003
£152,000
Median price across the last 5 sales in NN4 9YB: £299,995 (2025–2023).
Nearby sales in NN4 9YB
Versus other Blackwell Hill homes
On epc rating, 4 Blackwell Hill stands well clear of the street.
Price per m²
£2,625
Street avg £2,629
Floor Area
160 m²
Street avg 96 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.3 t/year
Everything you need to know about 4 Blackwell Hill
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Tideswell Close — bus stop.
Closest school
0.9 km
Simon de Senlis Primary School. 17 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
54.4dB
Night-time· 23:00 – 07:00
46.3dB