11b, Castle Street, Wellingborough, NN8 1LS
About 11b
11b is a mid-terrace house in Wellingborough (NN8 1LS). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 2012-2021 and council tax band C. The latest certificate (February 2026) shows a C (score 74). Earlier certificates rated it B (June 2011); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
At 103 m² the property is well over the postcode median (49 m² across 24 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused.
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system changed
More low energy lighting installed
Solar PV panels (30 kWp) installed
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Planning history
2 applications on record at 11b, Castle Street, Wellingborough, NN8 1LS
- Apr 2010Demolition And RebuildFullOutcome in report
Proposed demolition of existing dwellings and erection of a 3-storey building comprising 11 apartments and 5 houses in association with Metropolitan Housing Trust - amended plans and details of sunlight/daylight impact have been received
- Documents
- 22 docs on file
- Reference
- WP/2009/0447
- More recent applications — locked
- FullJun 2011Decision
Unlock 11b, Castle Street, Wellingborough, NN8 1LS's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 4 notable nearby
- The 27 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
11b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£224,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in NN8 1LS: £130,000 (2024–2022).
Nearby sales in NN8 1LS
1 Castle Street, Wellingborough, NN8 1LS
Sold Apr 2024
£315,0002 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
£80,000
Versus other Castle Street homes
EPC Rating
74 (C)
Street avg 71 (C)
Floor Area
103 m²
Street avg 125 m²
CO₂ Emissions
2.4 t/year
Street avg 4.0 t/year
Habitable Rooms
5 rooms
Street avg 6 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







