21 Austin Street, Northampton, NN1 3EY
About 21 Austin Street
21 Austin Street is a three-bedroom mid-terrace house in Northampton (NN1 3EY). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (November 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2012. Between certificates, roof efficiency went from Poor to Average and lighting went from Average to Good; while window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 85), a 2-band jump. This certificate was lodged in the last six months, so the rating reflects current condition. Period features are noted in the property record.
Across 2006–2016, sale prices on this property compounded at 6.5% per year. Today's modelled estimate of £206,000 is 37.3% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£188/sq ft) was about 51.3% above the typical sold price in the postcode. 10 years since the last transfer (August 2016).
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenRear
- DrivewayYes
Building
- Period featuresYes
Everything you need to know about 21 Austin Street
The true value, the hidden risks and the full sale history, in one report.
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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
Loft insulation upgraded to recommended levels
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 £885 · Includes VAT
Planning history
21 Austin Street 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
21 Austin Street saw 3 transfers in just over a decade — high turnover for the postcode.
£206,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 10 years.
£150,000
Growth on file: 6.5% per year over 10 years.
Sales timeline
11 August 2016Most recent
£150,000
+7.5%over 9 years5 July 2007
£139,500
+74.4%over 10 months7 September 2006
£80,000
Median price across the last 5 sales in NN1 3EY: £155,000 (2024–2023).
Nearby sales in NN1 3EY
Versus other Austin Street homes
Price per m²
£2,027
Street avg £1,636
Floor Area
74 m²
Street avg 81 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.3 t/year
Street avg 4.4 t/year
Everything you need to know about 21 Austin Street
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
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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
NIA Academy — bus stop.
Closest school
0.5 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
51.9dB
Night-time· 23:00 – 07:00
42.2dB