4a, Old School Lane, Blakesley, Towcester, NN12 8RS
About 4a
4a is a mid-terrace house in Blakesley, Towcester, Towcester (NN12 8RS). It has a recorded floor area of 168 m² (around 1808 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (December 2020) shows an E (score 40), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2020); the latest reading is 2 bands lower. Between certificates, hot-water efficiency went from Very Poor to Average; while wall efficiency dropped from Very Good to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to D (score 64). Main heating runs on oil.
At 168 m² it's 27.3% larger than the typical home in the postcode (132 m² median across 37 EPCs). One historical planning record sits against the property in 2012.
Know exactly what you're buying at 4a
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
4a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Fuel source changed
Heating controls changed
Hot water system upgraded
Loft insulation upgraded to recommended levels
Planning history
- Sept 2012AmendmentIn report
Lawful development certificate for existing use as a dwelling
- Documents
- 6 docs on file
- Reference
- S/2012/0905/LDE
We flagged 1 thing worth checking at 4a
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
4a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£427,000
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 4a, 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
EPC Rating
40 (E)
Street avg 48 (E)
Floor Area
168 m²
Street avg 139 m²
CO₂ Emissions
11.0 t/year
Street avg 9.1 t/year
Habitable Rooms
6 rooms
Street avg 6 rooms
Similar properties nearby
1 Birds Hill Road, Eastcote
NN12 8NF
1 Baines Close, Silverstone
NN12 8DG
1 Blakesley Hill, Greens Norton
NN12 8BP
1 Brookside, Wappenham
NN12 8SS
1 Brabham Close, Silverstone
NN12 8UL
1 Bengal Cottages, Bengal, Greens Norton
NN12 8BG
1 Bengal, Greens Norton
NN12 8BG
1 Benham Road, Greens Norton
NN12 8DB
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