1a, Clare Street, Northampton, NN1 3JG
About 1a
1a is an end-of-terrace house in Northampton (NN1 3JG). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to before 1900. The latest certificate (September 2017) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since November 2008. Between certificates, lighting went from Very Poor to Average. The recommended improvements would push it to C (score 77).
One planning record on file: change of use to residential approved in 2022. Past consents include change of use to residential, meaningful when judging how the property has evolved. At 51 m² it's 24.4% larger than the typical home in the postcode (41 m² median across 6 EPCs). Across 2021–2022, sale prices on this property compounded at 19.4% per year. On a £-per-square-foot basis, the last sale (£273/sq ft) was about 79.2% above the typical sold price in the postcode. Most recent transfer: April 2022 at £149,995. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
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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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 application on record at 1a, Clare Street, Northampton, NN1 3JG
- Mar 2022Change of UseFullOutcome in report
Change of Use from Offices (Use Class E) to residential (Use Class C3) with external alterations
- Documents
- 31 docs on file
- Reference
- N/2021/0458
Unlock 1a, Clare Street, Northampton, NN1 3JG's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 42 notable nearby
- The 31 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 1a was the highest on Land Registry record across the postcode.
£149,000
Modelled from EPC, postcode comparables and a sale-price growth of 19.4% per year over 1 year.
£149,995
Growth on file: 19.4% per year over 1 year.
Sales timeline
28 April 2022Most recent
£149,995
+22.2%over 1 year12 March 2021
£122,786
Median price across the last 5 sales in NN1 3JG: £97,000 (2006–2001).
Versus other Clare Street homes
On years held, 1a runs well behind the street norm.
Price per m²
£2,941
Street avg £2,009
Floor Area
51 m²
Street avg 43 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
3.5 t/year
Street avg 2.4 t/year
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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One time fee only - money back guarantee

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
0.3 km
Grove Road — bus stop.
Closest school
0.6 km
Northampton International Academy. 30 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
52.2dB

Night-time· 23:00 – 07:00
42.3dB






