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Get started20 Diamond Drive is a four-bedroom detached house in Irthlingborough, Wellingborough, Wellingborough (NN9 5PT). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (August 2018) shows a C (score 72). The recommended improvements would push it to B (score 82).
Sale prices here have outpaced England HPI: 7.4% per year against 0% for the wider region. Today's modelled estimate of £330,000 is 26.9% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£183/sq ft) was about 33.8% above the typical sold price in the postcode. At 132 m² the property is well over the postcode median (100 m² across 23 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, meaningful when judging how the property has evolved. Sold April 2019 for £260,000.
Council records include a part-single-part-two-storey side and rear extension at 20 Diamond Drive.
Extension: Part single, part two storey · Side and rear of property
Two storey side and single storey rear extensions
Price for 20 Diamond Drive has grown more than fourfold since the 1998 starting point.
£330,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 21 years.
£260,000
Growth on file: 7.4% per year over 21 years.
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20 Diamond Drive outperforms the street on habitable rooms by a wide margin.
Price per m²
£1,970
Street avg £1,829
Floor Area
132 m²
Street avg 98 m²
Habitable Rooms
7 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
47.8dB

Launch offer
Secure checkout · One-off payment

5 April 2019Most recent
£260,000
+340.7%over 20 years5 August 1998
£59,000
Median price across the last 5 sales in NN9 5PT: £275,000 (2025–2021).
9 Diamond Drive Irthlingborough Wellingborough
Sold Aug 2025
15 Diamond Drive Irthlingborough Wellingborough
Sold Apr 2025
36 Diamond Drive Irthlingborough Wellingborough
Sold Sept 2024
44 Diamond Drive Irthlingborough Wellingborough
Sold Jan 2022
42 Diamond Drive Irthlingborough Wellingborough
Sold Aug 2021
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 5 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.7 t/year
NN9 5AR
Cowper Close — bus stop.
Closest school
0.8 km
Irthlingborough Nursery and Infant School. 10 schools nearby.
Night-time· 23:00 – 07:00
38.7dB