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Get started47 Overstone Road is a detached house in Sywell, Northampton, Northampton (NN6 0AW). It has a recorded floor area of 293 m² (around 3154 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (January 2016) shows a D (score 58), a step below the typical UK home. When first surveyed in August 2012 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good; while roof efficiency dropped from Average to Very Poor and lighting dropped from Poor to Very Poor. The recommended improvements would push it to C (score 73). The latest certificate is from January 2016, so improvements made since then won't be reflected.
Sale prices here have outpaced England HPI: 28.4% per year against 0% for the wider region. Today's modelled estimate of £785,000 is 36.5% above the 2016 sale price. At 293 m² the property is well over the postcode median (156 m² across 50 EPCs), placing it in the larger end of the local stock. 7 planning records sit against the property, 3 approved, 3 refused. Past consents include an extension, meaningful when judging how the property has evolved. On the market in February 2016 and unlisted since — roughly 10 years.
47 Overstone Road's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 13 Jan 2026
47 Overstone Road has 2 separate extension applications on the council record.
Retrospective application for erection of a stone wall to 1.48 meters high built back from the existing front boundary wall, erection of two stone pillars to 1.97 meters high and erection of electric gates to 1.8 meters high in driveway. Block paving to the area outside the gates
47 Overstone Road has more than doubled in price since the earliest registered sale in 2013.
£785,000
Modelled from EPC, postcode comparables and a sale-price growth of 28.4% per year over 3 years.
£575,000
Growth on file: 28.4% per year over 3 years.
CO₂ Emissions for 47 Overstone Road lags the street by a wide margin.
Price per m²
£1,962
Street avg £2,485
Floor Area
293 m²
Street avg 193 m²
Habitable Rooms
8 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

Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
Window efficiency improved
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Are we missing something? Tell us about home improvements to help adjust your valuation.
The inclusion of a new skylight in the pitched roof
5 more applications for this property
Join to see all planning history.
26 February 2016Most recent
£575,000
+113.0%over 3 years15 February 2013
£270,000
Median price across the last 5 sales in NN6 0AW: £387,500 (2025–2023).
Street avg 8 rooms
CO₂ Emissions
14.0 t/year
Street avg 6.2 t/year
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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