21 Whitworth Avenue is a two-bedroom mid-terrace house in Corby (NN17 1DL). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (February 2022) shows a C (score 71). When first surveyed in April 2016 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 91).
Sale prices here have outpaced England HPI: 9.3% per year against 0% for the wider region. Today's modelled estimate of £193,000 is 10.3% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£267/sq ft) was about 128.2% above the typical sold price in the postcode. On energy efficiency it sits in the top 10% of properties in this postcode. Most recent transfer: July 2022 at £175,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
21 Whitworth Avenue ranks among the most efficient homes in the postcode for energy use.
No planning applications are recorded against 21 Whitworth Avenue, Corby, NN17 1DL. The full report also covers planning activity across the surrounding area.
Full planning data for 21 Whitworth Avenue, Corby, NN17 1DL
Every application and decision on this property and nearby, in full, in the report.
21 Whitworth Avenue has more than quadrupled in price since its earliest registered sale in 2001.
£193,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 22 years.
£175,000
Growth on file: 9.3% per year over 22 years.
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On epc rating, 21 Whitworth Avenue stands well clear of the street.
Price per m²
£2,869
Street avg £1,927
Floor Area
61 m²
Street avg 73 m²
Habitable Rooms
4 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
(Lloyds) The Octagon — bus stop.

Daytime· 07:00 – 23:00
51.3dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Roof insulation improved
More low energy lighting installed
29 July 2022Most recent
£175,000
+27.7%over 4 years13 April 2018
£137,000
+31.7%over 1 year8 July 2016
£104,000
+300.0%over 15 years25 January 2001
£26,000
Median price across the last 5 sales in NN17 1DL: £185,000 (2025–2021).
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 5 rooms
CO₂ Emissions
2.3 t/year
Street avg 3.8 t/year
NN17 1UR
Closest school
0.4 km
Rockingham Primary School. 13 schools nearby.
Night-time· 23:00 – 07:00
42.7dB