21 Hillside, Chelveston, Wellingborough, NN9 6AQ
About 21 Hillside
21 Hillside is a semi-detached house in Chelveston, Wellingborough, Wellingborough (NN9 6AQ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (September 2020) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2009. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good; while wall efficiency dropped from Good to Average. The recommended improvements would lift it to A (score 111), a 3-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Across 2010–2023, sale prices on this property compounded at 7.5% per year. On a £-per-square-foot basis, the last sale (£406/sq ft) was about 68.8% above the typical sold price in the postcode. Sold April 2023 for £245,000.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 3 September 2030
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Roof insulation improved
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Level 2 HomeBuyer Report
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Planning history
21 Hillside has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Hillside has more than doubled in price since the earliest registered sale in 2010.
£249,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 12 years.
£245,000
Growth on file: 7.5% per year over 12 years.
Sales timeline
18 April 2023Most recent
£245,000
+9.4%over 11 months25 May 2022
£224,000
+124.0%over 11 years5 November 2010
£100,000
Median price across the last 5 sales in NN9 6AQ: £205,000 (2021–2001).
Versus other Hillside homes
On price per m², 21 Hillside stands well clear of the street.
Price per m²
£4,375
Street avg £2,707
Floor Area
56 m²
Street avg 69 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.6 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
159/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Water Lane — bus stop.
Closest school
2.0 km
Stanwick Primary School. 2 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
47.6dB

Night-time· 23:00 – 07:00
40.2dB







