20a, Old School Lane, Blakesley, Towcester, NN12 8RS
About 20a
20a is a detached house in Blakesley, Towcester, Towcester (NN12 8RS). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (August 2019) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in January 2010 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to B (score 90), a 3-band jump. Main heating runs on electricity.
At 59 m² it sits well below the postcode median (140 m² across 37 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £250,000 is 11.3% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£354/sq ft) was about 46.6% above the typical sold price in the postcode. Last sale on file: £224,660 in September 2019.
Know exactly what you're buying at 20a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
20a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Roof insulation improved
More low energy lighting installed
Planning history
20a has no planning applications on record.
Notable planning nearby
16applications of note in the surrounding area
We flagged 1 thing worth checking at 20a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
£250,000
Modelled from EPC, postcode comparables.
£224,660
Recorded with HM Land Registry.
Sales timeline
26 September 2019Most recent
£224,660
Median price across the last 5 sales in NN12 8RS: £315,000 (2025–2021).
Nearby sales in NN12 8RS
4c, Old School Lane, Blakesley, Towcester, NN12 8RS
Sold Jul 2025
£295,00021 Old School Lane, Blakesley, Towcester, NN12 8RS
Sold Aug 2024
£192,50039 Old School Lane, Blakesley, Towcester, NN12 8RS
Sold Dec 2023
£485,00025 Old School Lane, Blakesley, Towcester, NN12 8RS
Sold Jun 2022
£315,00040 Old School Lane, Blakesley, Towcester, NN12 8RS
Sold Apr 2021
£605,000
Everything we know about 20a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
Versus other Old School Lane homes
20a is notably below the street on floor area.
Price per m²
£3,808
Street avg £3,115
Floor Area
59 m²
Street avg 141 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
7.1 t/year
Street avg 9.2 t/year
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1 Barrett Row, Bradden
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1 Benham Road, Greens Norton
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Shop — bus stop.
Closest school
0.3 km
Blakesley Church of England Primary School. 1 school nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
44.3dB
Night-time· 23:00 – 07:00
36.1dB