21 Bostock Avenue, Northampton, NN1 4LW
About 21 Bostock Avenue
21 Bostock Avenue is a three-bedroom mid-terrace house in Northampton (NN1 4LW). It has a recorded floor area of 152 m² (around 1636 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (April 2025) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2012. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good. The recommended improvements would push it to C (score 80). Other recorded features include a conservatory and a basement. Period features are noted in the property record. Records show the property has been extended at some point in its history.
It changed hands recently, sold November 2025 for £280,000. At 152 m² it's 15.2% larger than the typical home in the postcode (132 m² median across 38 EPCs). On a £-per-square-foot basis, the last sale (£171/sq ft) was about 30.4% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms3
- CloakroomYes
- EnsuiteYes
- BasementYes
- ConservatoryYes
Building
- Period featuresYes
- Previously extendedYes
Everything you need to know about 21 Bostock Avenue
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
21 Bostock Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 7 April 2035
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
21 Bostock Avenue has no planning applications on record.
But the area is active
65 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Bostock Avenue valuation sits well clear of the typical sold price in this postcode.
£304,000
Modelled from EPC, postcode comparables.
£280,000
Recorded with HM Land Registry.
Sales timeline
21 November 2025Most recent
£280,000
Median price across the last 5 sales in NN1 4LW: £315,000 (2025–2022).
Nearby sales in NN1 4LW
26 Bostock Avenue, Northampton, NN1 4LW
Sold Mar 2025
£300,0003 Bostock Avenue, Northampton, NN1 4LW
Sold Dec 2024
£250,00028 Bostock Avenue, Northampton, NN1 4LW
Sold Sept 2022
£330,00012 Bostock Avenue, Northampton, NN1 4LW
Sold Aug 2022
£395,00035 Bostock Avenue, Northampton, NN1 4LW
Sold Aug 2022
£315,000
Versus other Bostock Avenue homes
21 Bostock Avenue is notably below the street on years held.
Price per m²
£1,842
Street avg £1,703
Floor Area
152 m²
Street avg 150 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
7.5 t/year
Street avg 7.1 t/year
Everything you need to know about 21 Bostock Avenue
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
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Similar properties nearby
The neighbourhood at a glance
Crime
571/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Melbourne Street — bus stop.
Closest school
0.2 km
Stimpson Avenue Academy. 30 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
52.6dB
Night-time· 23:00 – 07:00
42.8dB