40a, Old School Lane, Blakesley, Towcester, NN12 8RS
About 40a
40a is a detached house in Blakesley, Towcester, Towcester (NN12 8RS). It has a recorded floor area of 240 m² (around 2583 sq ft) and construction records dating it to 2022. The latest certificate (May 2023) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in January 2022 the rating was C, the property has climbed 1 band since. Main heating runs on oil: heating oil.
At 240 m² the property is well over the postcode median (132 m² across 37 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. One planning record on file: solar panel installation approved in 2023. Past consents include solar panel installation, meaningful when judging how the property has evolved.
Know exactly what you're buying at 40a
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
40a ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Planning history
Planning records include a solar-panel installation at 40a.
- Mar 2023Solar PanelsFullIn report
Solar panels onto East facing roof slope
- Documents
- 10 docs on file
- Reference
- WNS/2022/2277/FUL
We flagged 1 thing worth checking at 40a
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
40a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£983,000
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 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 40a, 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
On epc rating, 40a stands well clear of the street.
EPC Rating
85 (B)
Street avg 47 (E)
Floor Area
240 m²
Street avg 137 m²
CO₂ Emissions
4.5 t/year
Street avg 9.2 t/year
Similar properties nearby
1 3, Old School Lane, Blakesley
NN12 8RS
1 Barn Yard, Silverstone
NN12 8WT
1 Brackley Road, Silverstone
NN12 8UA
1 Banbury Road, Litchborough
NN12 8JF
1 Acorn Way, Silverstone
NN12 8DQ
1 Bradden Way, Greens Norton
NN12 8BY
1 Bengal Lane, Greens Norton
NN12 8BE
1 Blakesley Hill, Greens Norton
NN12 8BP
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