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Get started17 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 1991-1995 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 (January 2022) shows a C (score 72). The rating has held steady at C across 2 certificates since July 2010. Between certificates, lighting went from Poor to Good and main heating went from Poor to Average; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.
Sale prices here have outpaced England HPI: 11.4% per year against 0% for the wider region. Today's modelled estimate of £103,000 is 43.1% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£191/sq ft) was about 50.6% above the typical sold price in the postcode. On the market in August 2014 and unlisted since — roughly 12 years. 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.
17 Castle Mews valuation sits well clear of the typical sold price in this postcode.
£103,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.4% per year over 3 years.
£72,000
Growth on file: 11.4% per year over 3 years.
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On floor area, 17 Castle Mews runs well behind the street norm.
Price per m²
£2,057
Street avg £1,534
Floor Area
35 m²
Street avg 45 m²
Habitable Rooms
2 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
All Saints Church — bus stop.

Daytime· 07:00 – 23:00
53.2dB

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Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
22 August 2014Most recent
£72,000
+44.0%over 3 years8 April 2011
£50,000
Median price across the last 5 sales in NN8 1NX: £90,000 (2023–2013).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 3 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.3 t/year
NN8 1NS
Closest school
0.1 km
All Saints CEVA Primary School and Nursery. 19 schools nearby.
Night-time· 23:00 – 07:00
43.7dB