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Get started47 King Street is a three-bedroom semi-detached house in Earls Barton, Northampton, Northampton (NN6 0LQ). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (September 2023) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 72), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
One planning record on file: an extension approved in 2024. Past consents include an extension, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Today's modelled estimate of £278,000 is 15.8% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£208/sq ft) was about 55.3% above the typical sold price in the postcode. Most recent transfer: June 2024 at £240,000.
47 King Street's carbon output runs well above what efficient homes in the postcode produce.
47 King Street has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Application to determine if prior approval is required for a single storey rear extension projecting 3.60 metres from the rear of the dwelling, with a maximum height of 2.80 metres and an eaves height of 2.650 metres
47 King Street valuation sits well clear of the typical sold price in this postcode.
£278,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
47 King Street is notably below the street on epc rating.
Price per m²
£2,243
Street avg £2,017
Floor Area
107 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 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
0.2 km

Daytime· 07:00 – 23:00
49.0dB

7 June 2024Most recent
£240,000
Median price across the last 5 sales in NN6 0LQ: £280,000 (2025–2024).
18 King Street Earls Barton Northampton
Sold Sept 2025
26 King Street Earls Barton Northampton
Sold Oct 2024
30a King Street Earls Barton Northampton
Sold Aug 2024
24 King Street Earls Barton Northampton
Sold Jan 2024
9 King Street Earls Barton Northampton
Sold Jan 2024
CO₂ Emissions
7.0 t/year
Street avg 4.3 t/year
NN6 0LD
Prince Street — bus stop.
Closest school
0.7 km
Earls Barton Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
39.2dB
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