47 49, Flat 1, St Giles Street, Northampton, NN1 1JF
About 47 49
47 49 is a detached house in Northampton (NN1 1JF). It has a recorded floor area of 35 m² (around 377 sq ft) and construction records dating it to 1967-1975. At 35 m² this is the 3rd smallest of 6 units on EPC record in 47 49, where floor areas span 32–50 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (51 versus a best of 76). The latest certificate (February 2025) shows an E (score 51), well below the UK norm with real room to improve. Earlier certificates rated it B (August 2013); the latest reading is 3 bands lower. Between certificates, wall efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity.
At 35 m² it's 27.1% smaller than the typical home in the postcode (48 m² median across 16 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about 47 49
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
47 49 sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls changed
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Roof insulation improved
More low energy lighting installed
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 £820 · Includes VAT
Planning history
47 49 has no planning applications on record.
But the area is active
45 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
47 49 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£151,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in NN1 1JF: £675,000 (2021–2006).
Nearby sales in NN1 1JF
67 St Giles Street, Northampton, NN1 1JF
Sold Oct 2021
£1,640,00085 St Giles Street, Northampton, NN1 1JF
Sold Aug 2016
£280,00087 St Giles Street, Northampton, NN1 1JF
Sold Jul 2015
£250,00047 49, St Giles Street, Northampton, NN1 1JF
Sold Aug 2006
£680,00079a, St Giles Street, Northampton, NN1 1JF
Sold May 2006
£172,000
Versus other St Giles Street homes
On epc rating, 47 49 runs well behind the street norm.
EPC Rating
51 (E)
Street avg 70 (C)
Floor Area
35 m²
Street avg 52 m²
CO₂ Emissions
2.6 t/year
Street avg 2.3 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about 47 49
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
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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
0.1 km
Post Office — bus stop.
Closest school
0.8 km
Castle Academy. 31 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
56.5dB
Night-time· 23:00 – 07:00
47.0dB