21 Derby Road, Northampton, NN1 4JP
About 21 Derby Road
21 Derby Road is a mid-terrace house in Northampton (NN1 4JP). It has a recorded floor area of 95 m² (around 1023 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (February 2017) shows a D (score 57), a step below the typical UK home. The recommended improvements would lift it to B (score 82), a 2-band jump.
Last changed hands 10 years ago, in January 2017. Across the public record there are 4 sales, relatively high churn for a single property. Across 1997–2017, sale prices on this property compounded at 8.2% per year. Today's modelled estimate of £219,000 is 23.4% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£174/sq ft) was about 30.2% above the typical sold price in the postcode.
Everything you need to know about 21 Derby Road
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 23 February 2027
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21 Derby Road 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
Price for 21 Derby Road has grown more than fourfold since the 1997 starting point.
£219,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.2% per year over 19 years.
£177,500
Growth on file: 8.2% per year over 19 years.
Sales timeline
10 January 2017Most recent
£177,500
+45.5%over 12 years6 February 2004
£122,000
+73.0%over 3 years11 October 2000
£70,500
+78.5%over 2 years12 December 1997
£39,500
Median price across the last 5 sales in NN1 4JP: £185,000 (2026–2025).
Nearby sales in NN1 4JP
Versus other Derby Road homes
On epc rating, 21 Derby Road runs well behind the street norm.
Price per m²
£1,868
Street avg £2,005
Floor Area
95 m²
Street avg 97 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
5.3 t/year
Street avg 4.6 t/year
Everything you need to know about 21 Derby Road
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
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Crime
571/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Westleigh Close — bus stop.
Closest school
0.3 km
Stimpson Avenue Academy. 31 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
51.9dB
Night-time· 23:00 – 07:00
42.0dB