1a, Byron Street, Northampton, NN2 7JE
About 1a
1a is an end-of-terrace house in Northampton (NN2 7JE). It has a recorded floor area of 27 m² (around 291 sq ft) and construction records dating it to 1983-1990. At 27 m² this is the smallest unit on EPC record across the building (27–124 m²). The building's EPC ratings span F to C across 45 units on file. The latest certificate (April 2024) shows an E (score 48), well below the UK norm with real room to improve. Earlier certificates rated it D (December 2023); the latest reading is one band lower. Between certificates, wall efficiency went from Poor to Good and window efficiency went from Poor to Good; while roof efficiency dropped from Very Good to Average and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on to be used only when there is no heating/hot.
At 27 m² it sits well below the postcode median (81 m² across 44 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). One historical planning record sits against the property in 2013.
Everything you need to know about 1a
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 application on record at 1a, Byron Street, Northampton, NN2 7JE
- Nov 2013Change of UseFullOutcome in report
Change of use from office (Use Class B1) into 1-bedroom dwelling (Use Class C3) including extension.
Extension- Documents
- 7 docs on file
- Reference
- N/2013/1028
Unlock 1a, Byron Street, Northampton, NN2 7JE's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 25 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
1a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£167,000
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 NN2 7JE: £205,000 (2025–2024).
Nearby sales in NN2 7JE
Everything you need to know about 1a
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Crime
27/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Co-op — bus stop.
Closest school
0.5 km
Kingsley Primary School. 35 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
52.0dB
Night-time· 23:00 – 07:00
42.1dB