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Get started12 Holdenby Road is a detached house in East Haddon, Northampton, Northampton (NN6 8DH). It has a recorded floor area of 158 m² (around 1701 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (September 2022) shows a D (score 57), a step below the typical UK home. Earlier certificates rated it C (December 2011); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 69).
Sale prices here have outpaced England HPI: 5.5% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£294/sq ft) was about 61.2% above the typical sold price in the postcode. At 158 m² the property is well over the postcode median (84 m² across 48 EPCs), placing it in the larger end of the local stock. Sold June 2021 for £500,000. 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. One planning record on file: an extension approved in 2007. Past consents include an extension and a porch, meaningful when judging how the property has evolved.
12 Holdenby Road's carbon output runs well above what efficient homes in the postcode produce.
Extension: Front of property
Porch and dormer extension to front elevation. Extension to garage and pitch the roof
12 Holdenby Road has more than tripled in price since its earliest registered sale in 1999.
£501,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 22 years.
£500,000
Growth on file: 5.5% per year over 22 years.
On co₂ emissions, 12 Holdenby Road runs well behind the street norm.
Price per m²
£3,165
Street avg £2,692
Floor Area
158 m²
Street avg 95 m²
Habitable Rooms
6 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
42.1dB

Changes detected from historical EPC data
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
8 June 2021Most recent
£500,000
+38.9%over 8 years21 September 2012
£360,000
+9.8%over 5 years5 February 2007
£328,000
+117.9%over 8 years29 January 1999
£150,500
Median price across the last 5 sales in NN6 8DH: £425,000 (2025–2023).
48 Holdenby Road East Haddon Northampton
Sold Sept 2025
35 Holdenby Road East Haddon Northampton
Sold Sept 2024
56 Holdenby Road East Haddon Northampton
Sold Jan 2024
65 Holdenby Road East Haddon Northampton
Sold Nov 2023
63 Holdenby Road East Haddon Northampton
Sold Jul 2023
Street avg 5 rooms
CO₂ Emissions
8.0 t/year
Street avg 3.8 t/year
NN6 8BS
Holdenby Road — bus stop.
Closest school
0.6 km
East Haddon Church of England Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
35.7dB
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