20a, Oakley Street, Northampton, NN1 3EP
About 20a
20a is a one-bedroom detached house in Northampton (NN1 3EP). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 2007 onwards and council tax band A. Tenure is freehold. The latest certificate (July 2022) shows a C (score 73). Earlier certificates rated it B (October 2008); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 91).
At 39 m² it sits well below the postcode median (72 m² across 57 EPCs), making it one of the more compact homes locally. Across 2012–2024, sale prices on this property compounded at 4% per year. Today's modelled estimate of £152,000 is 12.6% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£322/sq ft) was about 141.1% above the typical sold price in the postcode. Last sale on file: £135,000 in October 2024.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
Outside
- Private gardenYes
Building
- TenureFreehold
- Heating systemGas
Everything you need to know about 20a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
20a's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Loft insulation upgraded to recommended levels
More low energy lighting installed
More low energy lighting installed
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Planning history
20a 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
20a valuation sits well clear of the typical sold price in this postcode.
£152,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 12 years.
£135,000
Growth on file: 4.0% per year over 12 years.
Sales timeline
17 October 2024Most recent
£135,000
+58.8%over 11 years7 December 2012
£85,000
Median price across the last 5 sales in NN1 3EP: £175,000 (2025–2022).
Nearby sales in NN1 3EP
Versus other Oakley Street homes
20a outperforms the street on price per m² by a wide margin.
Price per m²
£3,462
Street avg £1,856
Floor Area
39 m²
Street avg 80 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
1.5 t/year
Street avg 3.5 t/year
Everything you need to know about 20a
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
NIA Academy — bus stop.
Closest school
0.4 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
52.3dB

Night-time· 23:00 – 07:00
42.5dB






