26 Kelvin Grove is a three-bedroom semi-detached house in Corby (NN17 1AZ). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (April 2021) shows a C (score 70). When first surveyed in January 2015 the rating was F, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would push it to B (score 88).
Sale prices here have outpaced England HPI: 14.4% per year against 0% for the wider region. Today's modelled estimate of £257,000 is 13.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£216/sq ft) was about 55.3% above the typical sold price in the postcode. At 97 m² the property is well over the postcode median (69 m² across 33 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). One planning record on file: an extension approved in 2017. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: July 2021 at £226,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Council records include a part-single-part-two-storey rear extension at 26 Kelvin Grove.
Extension: Part single, part two storey · Rear of property
Part single storey and part two storey rear extension
26 Kelvin Grove has more than doubled in price since the earliest registered sale in 2015.
£257,000
Modelled from EPC, postcode comparables and a sale-price growth of 14.4% per year over 6 years.
£226,000
Growth on file: 14.4% per year over 6 years.
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On floor area, 26 Kelvin Grove stands well clear of the street.
Price per m²
£2,330
Street avg £1,916
Floor Area
97 m²
Street avg 70 m²
Habitable Rooms
4 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Glenmoor House — bus stop.

Daytime· 07:00 – 23:00
49.2dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Full planning data for 26 Kelvin Grove, Corby, NN17 1AZ
Every application and decision on this property and nearby, in full, in the report.
30 July 2021Most recent
£226,000
+133.0%over 6 years17 April 2015
£97,000
Median price across the last 5 sales in NN17 1AZ: £185,000 (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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Street avg 4 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.7 t/year
NN17 1UR
Closest school
0.2 km
Rockingham Primary School. 16 schools nearby.
Night-time· 23:00 – 07:00
40.2dB