45a, Bostock Avenue, Northampton, NN1 4LW
About 45a
45a is a one-bedroom end-of-terrace house in Northampton (NN1 4LW). It has a recorded floor area of 188 m² (around 2024 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (April 2016) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2008. Between certificates, hot-water efficiency went from Very Poor to Good; while roof efficiency dropped from Very Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. The latest certificate is from April 2016, so improvements made since then won't be reflected.
At 188 m² the property is well over the postcode median (131 m² across 37 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs). On the market in August 2017 and unlisted since — roughly 9 years. Today's modelled estimate of £366,000 is 26.2% above the 2017 sale price.
What this property has
Inside
- Bedrooms1
- Bathrooms10
Everything you need to know about 45a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Energy performance
45a's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Apr 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Windows upgraded, improving insulation
Low energy lighting percentage decreased
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
45a 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
45a valuation sits well clear of the typical sold price in this postcode.
£366,000
Modelled from EPC, postcode comparables.
£290,000
Recorded with HM Land Registry.
Sales timeline
2 August 2017Most recent
£290,000
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
CO₂ Emissions for 45a lags the street by a wide margin.
Price per m²
£1,543
Street avg £1,742
Floor Area
188 m²
Street avg 147 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
11.0 t/year
Street avg 7.1 t/year
Everything you need to know about 45a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

Similar properties nearby
1 Holly Road
NN1 4QL
1 Manfield Road
NN1 4NW
1 Bostock Avenue
NN1 4LW
1 Florence Road
NN1 4NA
1 Derby Mews, Derby Road
NN1 4JR
1 Brookland Crescent
NN1 4SS
1 Birchfield Road
NN1 4RF
1 Daniel Terrace, Lea Road
NN1 4PN
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
11/mo
Rising 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






