1 Castle Street, Wellingborough, NN8 1LS
About 1 Castle Street
1 Castle Street is a detached house in Wellingborough (NN8 1LS). It has a recorded floor area of 220 m² (around 2368 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (September 2022) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 78).
At 220 m² the property is well over the postcode median (49 m² across 24 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Across 2003–2024, sale prices on this property compounded at 3.8% per year. Today's modelled estimate of £472,000 is 49.8% above the 2024 sale price. Last sale on file: £315,000 in April 2024.
Energy performance
1 Castle Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
1 Castle Street 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
Latest sale on 1 Castle Street was the highest on Land Registry record across the postcode.
£472,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.8% per year over 21 years.
£315,000
Growth on file: 3.8% per year over 21 years.
Sales timeline
2 April 2024Most recent
£315,000
+50.0%over 17 years25 May 2006
£210,000
+44.8%over 2 years26 May 2003
£145,000
Median price across the last 5 sales in NN8 1LS: £122,500 (2024–2021).
Nearby sales in NN8 1LS
2 Castle Street, Wellingborough, NN8 1LS
Sold Mar 2024
£122,500Park View, Flat 3, Castle Street, Wellingborough, NN8 1LS
Sold Feb 2024
£115,0008 Castle Street, Wellingborough, NN8 1LS
Sold Aug 2023
£131,0006 Castle Street, Wellingborough, NN8 1LS
Sold Jan 2021
£80,000Park View, Flat 9, Castle Street, Wellingborough, NN8 1LS
Sold May 2019
£116,000
Versus other Castle Street homes
On epc rating, 1 Castle Street runs well behind the street norm.
EPC Rating
59 (D)
Street avg 74 (C)
Floor Area
220 m²
Street avg 102 m²
CO₂ Emissions
10.0 t/year
Street avg 2.4 t/year
Habitable Rooms
7 rooms
Street avg 5 rooms
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
0.0 km
All Saints CEVA Primary School and Nursery. 18 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
53.3dB

Night-time· 23:00 – 07:00
43.9dB







