9 is a four-bedroom detached house in Deenethorpe, Corby, Corby (NN17 3EP). It has a recorded floor area of 171 m² (around 1841 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (August 2025) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in March 2015 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good, hot-water efficiency went from Poor to Average and lighting went from Poor to Good; while window efficiency dropped from Good to Poor. Main heating runs on oil.
Sale prices here have outpaced England HPI: 4.9% per year against 0% for the wider region. Today's modelled estimate of £606,000 is 34.7% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£244/sq ft) was about 29.8% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. 10 years since the last transfer (December 2015).
9's carbon output runs well above what efficient homes in the postcode produce.
9 has 2 separate extension applications on the council record.
Extension: Single storey
First floor extension to form bedroom with en-suite (above study and hall)
Sale price has at least doubled since 1997.
£606,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 18 years.
£450,000
Growth on file: 4.9% per year over 18 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
Price per m²
£2,632
Street avg £2,712
Floor Area
171 m²
Street avg 150 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Deenethorpe Village DRT — bus stop.

Daytime· 07:00 – 23:00
50.4dB

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Changes detected from historical EPC data
Hot water efficiency improved
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Extension: Single storey
First floor extension above existing garage study and hall to form bedroom with en-suite.
Full planning data for 9, Deenethorpe, Corby, NN17 3EP
Every application and decision on this property and nearby, in full, in the report.
8 December 2015Most recent
£450,000
+38.5%over 12 years25 September 2003
£325,000
+75.7%over 6 years30 June 1997
£185,000
Median price across the last 5 sales in NN17 3EP: £375,000 (2025–2024).
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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CO₂ Emissions
6.5 t/year
Street avg 6.3 t/year
NN17 3LP
Night-time· 23:00 – 07:00
41.9dB