21a, 4 Swanspool Flats, Sheep Street, Wellingborough, NN8 1BZ
About 21a
21a is a mid-terrace house in Wellingborough (NN8 1BZ). It has a recorded floor area of 65 m² (around 700 sq ft) and construction records dating it to before 1900. At 65 m² this is the 3rd smallest of 4 units on EPC record in 21a, where floor areas span 59–83 m². The building's EPC ratings span E to D, with this unit at the top. On EPC score it ranks first in the building (68 versus a worst of 46). The latest certificate (April 2021) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2011. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good. The recommended improvements would push it to C (score 75).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
21a 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
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£164,000
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.
Versus other Sheep Street homes
EPC Rating for 21a runs comfortably ahead of the street norm.
EPC Rating
68 (D)
Street avg 58 (D)
Floor Area
65 m²
Street avg 67 m²
CO₂ Emissions
2.7 t/year
Street avg 3.9 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Similar properties nearby
126b, Flat 4, Midland Road
NN8 1NF
1a, Flat 2, Knox Road
NN8 1HW
10c, Flat 2, Strode Road
NN8 1JE
126b, Flat 3, Midland Road
NN8 1NF
1a, Flat 1, Knox Road
NN8 1HW
126b, Flat 1, Midland Road
NN8 1NF
10c, Flat 1, Strode Road
NN8 1JE
15a, Flat 1, Cambridge Street
NN8 1DJ
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Swanspool House — bus stop.
Closest school
0.4 km
Wrenn School. 20 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
53.9dB

Night-time· 23:00 – 07:00
44.5dB







