23a, Colwyn Road, Northampton, NN1 3PZ
About 23a
23a is a mid-terrace house in Northampton (NN1 3PZ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (February 2020) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in November 2008 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good. The recommended improvements would push it to C (score 78).
At 72 m² it's 18.2% smaller than the typical home in the postcode (88 m² median across 53 EPCs).
Everything you need to know about 23a
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
Heating controls upgraded for better temperature management
More low energy lighting installed
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 £820 · Includes VAT
Planning history
23a has no planning applications on record.
But the area is active
42 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
23a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£155,000
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 NN1 3PZ: £225,000 (2025–2022).
Nearby sales in NN1 3PZ
Versus other Colwyn Road homes
On habitable rooms, 23a stands well clear of the street.
EPC Rating
66 (D)
Street avg 59 (D)
Floor Area
72 m²
Street avg 52 m²
CO₂ Emissions
3.2 t/year
Street avg 3.4 t/year
Habitable Rooms
4 rooms
Street avg 2 rooms
Everything you need to know about 23a
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
Reported crime in the wider district is trending notably upward year-on-year.
Crime
11/mo
Rising year-on-year across the wider district.
Nearest stop
0.4 km
Racecourse Pavillion — bus stop.
Closest school
0.7 km
Northampton International Academy. 32 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
50.2dB
Night-time· 23:00 – 07:00
40.3dB