21 Deene Close is a four-bedroom semi-detached house in Corby (NN17 1HY). It has a recorded floor area of 143 m² (around 1539 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (December 2022) shows a C (score 69), just inside the C band. When first surveyed in November 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good. 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: 6.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£185/sq ft) was about 42.8% above the typical sold price in the postcode. At 143 m² the property is well over the postcode median (64 m² across 14 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2003. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Last sale on file: £285,000 in February 2024.
Extension: Single storey
First floor extension and garage conversion
Latest sale on 21 Deene Close was the highest on Land Registry record across the postcode.
£309,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 24 years.
£285,000
Growth on file: 6.9% per year over 24 years.
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On floor area, 21 Deene Close stands well clear of the street.
Price per m²
£1,993
Street avg £2,170
Floor Area
143 m²
Street avg 72 m²
Habitable Rooms
6 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
49.3dB

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Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
Windows upgraded, improving insulation
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Full planning data for 21 Deene Close, Corby, NN17 1HY
Every application and decision on this property and nearby, in full, in the report.
26 February 2024Most recent
£285,000
+103.6%over 13 years25 June 2010
£140,000
+147.8%over 10 years15 December 1999
£56,500
Median price across the last 5 sales in NN17 1HY: £193,000 (2025–2019).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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Street avg 4 rooms
CO₂ Emissions
5.1 t/year
Street avg 3.5 t/year
NN17 1BE
Ashdown Place — bus stop.
Closest school
0.3 km
Our Lady of Walsingham Catholic Primary School. 16 schools nearby.
Night-time· 23:00 – 07:00
38.5dB