15a is a four-bedroom detached house in Gretton, Corby, Corby (NN17 3DN). It has a recorded floor area of 264 m² (around 2842 sq ft), construction records dating it to 2012 onwards and council tax band E. The latest certificate (February 2021) returns a B (score 81), comfortably above the UK average. When first surveyed in March 2018 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Average to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Poor to Good.
Sale prices here have outpaced England HPI: 33.7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£273/sq ft) was about 77% above the typical sold price in the postcode. At 264 m² the property is well over the postcode median (128 m² across 22 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 4 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sale on file: £775,000 in August 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
15a ranks among the most efficient homes in the postcode for energy use.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Discharge of Condition 3 pursuant to 18/00633/DPA Creation of first floor to host dwelling with two storey rear addition.
Latest sale on 15a was the highest on Land Registry record across the postcode.
£807,000
Modelled from EPC, postcode comparables and a sale-price growth of 33.7% per year over 3 years.
£775,000
Growth on file: 33.7% per year over 3 years.
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Detailed analysis
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15a outperforms the street on epc rating by a wide margin.
Price per m²
£2,936
Street avg £1,998
Floor Area
264 m²
Street avg 141 m²
Habitable Rooms
8 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
45.2dB

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Changes detected from historical EPC data
Switched from oil to mains gas, reducing emissions and costs
Heating controls upgraded for better temperature management
Hot water efficiency improved
Windows upgraded, improving insulation
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Floor insulation added or improved
More low energy lighting installed
Conditions(s) Removal: Condition Number(s): 5 Application Reference Number: 18/00633/DPA Date of Decision: 13/02/2019
Full planning data for 15a, Arnhill Road, Gretton, Corby, NN17 3DN
2 more on this property, plus every nearby application and full decision details, in the report.
27 August 2021Most recent
£775,000
+154.1%over 3 years11 June 2018
£305,000
Median price across the last 5 sales in NN17 3DN: £425,000 (2021–2019).
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 6 rooms
CO₂ Emissions
5.2 t/year
Street avg 6.8 t/year
NN17 3EP
(Gretton) Clay Lane — bus stop.
Closest school
0.4 km
Gretton Primary Academy. 1 school nearby.
Night-time· 23:00 – 07:00
36.5dB