Flat 4, 20 Park Street, Towcester, NN12 6DQ
About Flat 4
Flat 4 is an end-of-terrace house in Towcester (NN12 6DQ). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2018) shows an E (score 46), well below the UK norm with real room to improve. When first surveyed in April 2016 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to C (score 79), a 2-band jump. Main heating runs on electricity. At 48 m² this is the 3rd smallest of 5 units on EPC record in the building, where floor areas span 34–49 m². The building's EPC ratings span F to D across 5 units on file.
8 years since the last transfer (March 2018). Today's modelled estimate of £144,000 is 12.5% above the 2018 sale price.
Know exactly what you're buying at Flat 4
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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
Flat 4 has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 4
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
£144,000
Modelled from EPC, postcode comparables.
£128,000
Recorded with HM Land Registry.
Sales timeline
2 March 2018Most recent
£128,000
Median price across the last 5 sales in NN12 6DQ: £155,000 (2025–2022).
Nearby sales in NN12 6DQ
9 Park Street, Towcester, NN12 6DQ
Sold Jun 2025
£280,000Flat 3, 20 Park Street, Towcester, NN12 6DQ
Sold Nov 2024
£155,00011 Park Street, Towcester, NN12 6DQ
Sold Nov 2023
£275,000Flat 2, 16 Park Street, Towcester, NN12 6DQ
Sold Feb 2023
£132,000Flat 4, 16 Park Street, Towcester, NN12 6DQ
Sold Aug 2022
£102,000
Everything we know about Flat 4, 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 Park Street homes
On epc rating, Flat 4 runs well behind the street norm.
Price per m²
£2,667
Street avg £2,994
Floor Area
48 m²
Street avg 43 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.7 t/year
Similar properties nearby
Flat 2, 18 Park Street
NN12 6DQ
Flat 1, 237 Watling Street West
NN12 6DD
Flat 1, 18 Park Street
NN12 6DQ
Flat 2, 16 Brackley Road
NN12 6DJ
Flat 2, 20 Park Street
NN12 6DQ
Flat 1, 20 Park Street
NN12 6DQ
Flat 1, 126 Watling Street East
NN12 6BT
Flat 1, 16 Park Street
NN12 6DQ
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
0.0 km
Demand Responsive Area — bus stop.
Closest school
0.2 km
Sponne School. 6 schools 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
48.8dB

Night-time· 23:00 – 07:00
40.2dB