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 39.6% 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
Certificate validity
Valid until 20 March 2034
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
39 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.
£218,000
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: £170,000 (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
£190,000G1 The Light Box, Duke Street, Northampton, NN1 3BA
Sold May 2025
£170,000Church 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
£175,000
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 £2,390
Floor Area
74 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.4 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 · from £14.99
One time fee only - money back guarantee
The data behind every report
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1 4 The Light Box, Duke Street
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The neighbourhood at a glance
Crime
571/mo
Steady 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