Flat 1, 43 Semilong Road, Northampton, NN2 6BT
About Flat 1
Flat 1 is a one-bedroom detached house in Northampton (NN2 6BT). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1900-1929 and council tax band A. At 59 m² this is the largest unit on EPC record across the building (35–59 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (August 2023) shows a C (score 70). When first surveyed in November 2012 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good and lighting went from Good to Very Good.
Untraded for 19 years, with the last transfer in May 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 59 m² the property is well over the postcode median (41 m² across 38 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £123,000 sits 64% above the 2007 sale of £75,000.
What this property has
Inside
- Bedrooms1
Everything you need to know about Flat 1
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 controls upgraded for better temperature management
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 1 has no planning applications on record.
But the area is active
37 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£123,000
Modelled from EPC, postcode comparables.
£75,000
Recorded with HM Land Registry.
Sales timeline
26 May 2007Most recent
£75,000
Median price across the last 5 sales in NN2 6BT: £166,000 (2023–2020).
Nearby sales in NN2 6BT
36 Semilong Road, Northampton, NN2 6BT
Sold Apr 2023
£190,00030 Semilong Road, Northampton, NN2 6BT
Sold Mar 2023
£79,000Flat 1, 35 Semilong Road, Northampton, NN2 6BT
Sold Apr 2021
£75,000Flat 3, 35 Semilong Road, Northampton, NN2 6BT
Sold Jan 2018
£77,000Flat 2, 35 Semilong Road, Northampton, NN2 6BT
Sold Sept 2017
£91,000
Versus other Semilong Road homes
Floor Area for Flat 1 runs comfortably ahead of the street norm.
Price per m²
£1,271
Street avg £2,239
Floor Area
59 m²
Street avg 40 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.5 t/year
Everything you need to know about Flat 1
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
Crime
27/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Marriott Street — bus stop.
Closest school
0.2 km
Northampton International 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
51.8dB

Night-time· 23:00 – 07:00
42.3dB






