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
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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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.
£240,000
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
3/mo
Steady 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







