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Get started12 King Street is a three-bedroom mid-terrace house in Earls Barton, Northampton, Northampton (NN6 0LQ). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (March 2024) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2014. Between certificates, roof efficiency went from Very Poor to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Sale prices here have outpaced England HPI: 7.3% per year against 0% for the wider region. Today's modelled estimate of £256,000 sits 60% above the 2014 sale of £160,000. On the market in May 2014 and unlisted since — roughly 12 years. Across the public record there are 4 sales, relatively high churn for a single property.
Recommended upgrades on file would lift this property by multiple EPC bands.
12 King Street has more than tripled in price since its earliest registered sale in 1998.
£256,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.3% per year over 16 years.
£160,000
Growth on file: 7.3% per year over 16 years.
On floor area, 12 King Street stands well clear of the street.
Price per m²
£1,553
Street avg £2,039
Floor Area
103 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

Changes detected from historical EPC data
Loft insulation installed or upgraded to 250mm+
Are we missing something? Tell us about home improvements to help adjust your valuation.
14 May 2014Most recent
£160,000
+14.3%over 8 years27 January 2006
£140,000
+12.0%over 1 year1 March 2004
£125,000
+140.4%over 5 years3 July 1998
£52,000
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
47 King Street Earls Barton Northampton
Sold Jun 2024
24 King Street Earls Barton Northampton
Sold Jan 2024
CO₂ Emissions
4.7 t/year
Street avg 4.3 t/year
NN6 0PP
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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