20 Castle Mews, Wellingborough, NN8 1NX
About 20 Castle Mews
20 Castle Mews is a one-bedroom semi-detached house in Wellingborough (NN8 1NX). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1983-1990 and council tax band A. At 35 m² this is the smallest unit on EPC record across the building (35–55 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (December 2022) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since October 2008. Between certificates, window efficiency went from Very Poor to Good and main heating went from Poor to Average; while roof efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 81). Main heating runs on electricity.
Untraded for 19 years, with the last transfer in November 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £97,000 sits 94% above the 2007 sale of £50,000. At 35 m² it's 25.5% smaller than the typical home in the postcode (47 m² median across 19 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- ParkingAllocated
Building
- RefurbishedYes
Everything you need to know about 20 Castle Mews
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Single glazing replaced with double or better glazing
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 £795 · Includes VAT
Planning history
20 Castle Mews has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£97,000
Modelled from EPC, postcode comparables.
£50,000
Recorded with HM Land Registry.
Sales timeline
2 November 2007Most recent
£50,000
Median price across the last 5 sales in NN8 1NX: £90,000 (2023–2014).
Nearby sales in NN8 1NX
Versus other Castle Mews homes
On floor area, 20 Castle Mews runs well behind the street norm.
Price per m²
£1,429
Street avg £1,576
Floor Area
35 m²
Street avg 45 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.3 t/year
Everything you need to know about 20 Castle Mews
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
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
All Saints Church — bus stop.
Closest school
0.1 km
All Saints CEVA Primary School and Nursery. 19 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
53.2dB
Night-time· 23:00 – 07:00
43.7dB