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Get started122 Overstone Road is a three-bedroom semi-detached house in Sywell, Northampton, Northampton (NN6 0AW). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (June 2022) shows a D (score 56), a step below the typical UK home. The recommended improvements would push it to C (score 78). Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 6.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£339/sq ft) was about 86.8% above the typical sold price in the postcode. One planning record on file: an extension approved in 2009. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. At 115 m² it's 27.2% smaller than the typical home in the postcode (158 m² median across 50 EPCs). Last sale on file: £420,000 in June 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
122 Overstone Road's carbon output runs well above what efficient homes in the postcode produce.
Extension: Rear of property
Proposed extension and alterations to existing dwelling to include first floor loft conversion and extension to rear
122 Overstone Road has more than doubled in price since the earliest registered sale in 2005.
£440,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 17 years.
£420,000
Growth on file: 6.4% per year over 17 years.
On habitable rooms, 122 Overstone Road runs well behind the street norm.
Price per m²
£3,652
Street avg £2,447
Floor Area
115 m²
Street avg 196 m²
Habitable Rooms
4 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
43.8dB

24 June 2022Most recent
£420,000
+189.7%over 17 years19 May 2005
£145,000
Median price across the last 5 sales in NN6 0AW: £387,500 (2025–2023).
Street avg 8 rooms
CO₂ Emissions
6.3 t/year
Street avg 6.4 t/year
NN6 0PL
Sywell Primary School — bus stop.
Closest school
0.1 km
Sywell Church of England Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
36.6dB
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