1 1 The Light Box, Duke Street, Northampton, NN1 3BA
About 1 1 The Light Box
1 1 The Light Box is an end-of-terrace house in Northampton (NN1 3BA). It has a recorded floor area of 74 m² (around 797 sq ft) and construction records dating it to 1996-2002. The latest certificate (March 2024) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2009. Between certificates, hot-water efficiency went from Poor to Average and main heating went from Poor to Average; while window efficiency dropped from Good to Average. Main heating runs on electricity.
Across 2003–2015, sale prices on this property compounded at 1.8% per year. On a £-per-square-foot basis, the last sale (£257/sq ft) was about 41% above the typical sold price in the postcode. On the market in May 2015 and unlisted since — roughly 11 years.
Everything you need to know about 1 1 The Light Box
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
1 1 The Light Box has no planning applications on record.
But the area is active
42 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
1 1 The Light Box valuation sits well clear of the typical sold price in this postcode.
£213,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.8% per year over 12 years.
£205,000
Growth on file: 1.8% per year over 12 years.
Sales timeline
18 May 2015Most recent
£205,000
+24.2%over 12 years24 March 2003
£165,000
Median price across the last 5 sales in NN1 3BA: £175,000 (2025–2024).
Nearby sales in NN1 3BA
Church S Factory, Flat 16, 10 Duke Street, Northampton, NN1 3BA
Sold Aug 2025
£161,7501 4 The Light Box, Duke Street, Northampton, NN1 3BA
Sold Jun 2025
£190,000Church S Factory, Flat 3, 10 Duke Street, Northampton, NN1 3BA
Sold Mar 2025
£144,000Church S Factory, Flat 19, 10 Duke Street, Northampton, NN1 3BA
Sold Oct 2024
£175,000Church S Factory, Flat 10, 10 Duke Street, Northampton, NN1 3BA
Sold Jul 2024
£175,000
Versus other Duke Street homes
On co₂ emissions, 1 1 The Light Box runs well behind the street norm.
Price per m²
£2,770
Street avg £2,322
Floor Area
74 m²
Street avg 70 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.5 t/year
Everything you need to know about 1 1 The Light Box
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
11/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Police Station — bus stop.
Closest school
0.4 km
Northampton International Academy. 29 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
52.9dB

Night-time· 23:00 – 07:00
43.0dB






