21 Addison Road, Northampton, NN3 2LL
About 21 Addison Road
21 Addison Road is a two-bedroom semi-detached house in Northampton (NN3 2LL). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to 2020 and council tax band A. At 34 m² this is the smallest unit on EPC record across the building (34–98 m²). The building's EPC ratings span E to B, with this unit at the top. The latest certificate (June 2021) returns a B (score 82), comfortably above the UK average. When first surveyed in July 2011 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, window efficiency went from Average to Very Good and lighting went from Good to Very Good.
At 34 m² it sits well below the postcode median (69 m² across 34 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. Last changed hands 9 years ago, in May 2017. Across the public record there are 4 sales, relatively high churn for a single property. Across 1995–2017, sale prices on this property compounded at 8.3% per year. Today's modelled estimate of £200,000 is 21.2% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£451/sq ft) was about 214.7% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms2
- Dining roomYes
Outside
- Private gardenRear
- ParkingOff road
Building
- Central heatingYes
- RefurbishedYes
Everything you need to know about 21 Addison Road
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
21 Addison Road ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
High performance glazing installed
Cavity wall insulation installed
More low energy lighting installed
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Planning history
21 Addison 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
Price for 21 Addison Road has grown more than fourfold since the 1995 starting point.
£200,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.3% per year over 22 years.
£165,000
Growth on file: 8.3% per year over 22 years.
Sales timeline
31 May 2017Most recent
£165,000
+46.7%over 5 years21 December 2011
£112,500
+4.7%over 6 years28 June 2005
£107,500
+277.2%over 10 years27 June 1995
£28,500
Median price across the last 5 sales in NN3 2LL: £165,000 (2025–2021).
Nearby sales in NN3 2LL
Versus other Addison Road homes
21 Addison Road outperforms the street on price per m² by a wide margin.
Price per m²
£4,853
Street avg £3,365
Floor Area
34 m²
Street avg 42 m²
CO₂ Emissions
0.7 t/year
Street avg 1.3 t/year
Years Held
9 years
Street avg 5 years
Everything you need to know about 21 Addison Road
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
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Mayfield Road — bus stop.
Closest school
0.4 km
Eastfield Academy. 37 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
51.1dB
Night-time· 23:00 – 07:00
40.2dB