21 Grange Road, Northampton, NN3 2AY
About 21 Grange Road
21 Grange Road is an end-of-terrace house in Northampton (NN3 2AY). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1967-1975 and council tax band A. At 45 m² this is the 2nd smallest of 16 units on EPC record in the building, where floor areas span 39–77 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (November 2024) shows a C (score 74). The rating has held steady at C across 2 certificates since July 2014. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average.
At 45 m² it sits well below the postcode median (65 m² across 15 EPCs), making it one of the more compact homes locally. Across 2006–2022, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £120,000 is 14.3% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£217/sq ft) was about 72.1% above the typical sold price in the postcode. Most recent transfer: April 2022 at £105,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 21 Grange Road
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
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Planning history
21 Grange Road has no planning applications on record.
But the area is active
22 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has at least doubled since 2006.
£120,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 16 years.
£105,000
Growth on file: 5.6% per year over 16 years.
Sales timeline
13 April 2022Most recent
£105,000
+54.4%over 7 years26 January 2015
£68,000
+54.5%over 8 years9 April 2006
£44,000
Median price across the last 5 sales in NN3 2AY: £100,995 (2022–2006).
Nearby sales in NN3 2AY
Versus other Grange Road homes
21 Grange Road is notably below the street on floor area.
EPC Rating
74 (C)
Street avg 73 (C)
Floor Area
45 m²
Street avg 51 m²
CO₂ Emissions
1.6 t/year
Street avg 1.8 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 21 Grange Road
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
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Rydal Mount — bus stop.
Closest school
0.2 km
St Gregory's Catholic Primary School. 35 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
47.9dB
Night-time· 23:00 – 07:00
37.5dB