40a, Gloucester Avenue, Northampton, NN4 8QF
About 40a
40a is a semi-detached house in Northampton (NN4 8QF). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 2003-2006 and council tax band A. The latest certificate (August 2022) shows a C (score 72). When first surveyed in August 2018 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. Main heating runs on electricity.
Today's modelled estimate of £123,000 is 25.5% below the 2021 sale of £165,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£426/sq ft) was about 127.5% above the typical sold price in the postcode. At 36 m² it's 28.6% smaller than the typical home in the postcode (50 m² median across 25 EPCs). Most recent transfer: March 2021 at £165,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 40a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
40a's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
40a has no planning applications on record.
But the area is active
33 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£123,000
Modelled from EPC, postcode comparables.
£165,000
Recorded with HM Land Registry.
Sales timeline
4 March 2021Most recent
£165,000
Median price across the last 5 sales in NN4 8QF: £165,000 (2025–2016).
Nearby sales in NN4 8QF
46 Gloucester Avenue, Northampton, NN4 8QF
Sold Sept 2025
£215,00048 Gloucester Avenue, Northampton, NN4 8QF
Sold May 2023
£199,99540 Gloucester Avenue, Northampton, NN4 8QF
Sold Mar 2021
£165,00034 Gloucester Avenue, Northampton, NN4 8QF
Sold Jan 2017
£165,00026 Gloucester Avenue, Northampton, NN4 8QF
Sold Jun 2016
£140,000
Versus other Gloucester Avenue homes
Floor Area for 40a lags the street by a wide margin.
Price per m²
£4,583
Street avg £3,288
Floor Area
36 m²
Street avg 53 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
1.5 t/year
Street avg 2.5 t/year
Everything you need to know about 40a
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
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Telephone Exchange — bus stop.
Closest school
0.4 km
The Abbey Primary School. 20 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
45.7dB