First Floor Flat, 13 Henry Street, Northampton, NN1 4JD
About First Floor Flat
First Floor Flat is a mid-terrace house in Northampton (NN1 4JD). It has a recorded floor area of 52 m² (around 560 sq ft) and construction records dating it to before 1900. The latest certificate (April 2021) shows a C (score 69), just inside the C band. When first surveyed in August 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while roof efficiency dropped from Very Good to Good.
Today's modelled estimate of £167,000 is 47.8% below the 2024 sale of £320,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£572/sq ft) was about 373% above the typical sold price in the postcode. At 52 m² it sits well below the postcode median (77 m² across 22 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). Sold May 2024 for £320,000.
Everything you need to know about First Floor Flat
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
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
First Floor Flat has no planning applications on record.
But the area is active
65 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on First Floor Flat was the highest on Land Registry record across the postcode.
£167,000
Modelled from EPC, postcode comparables.
£320,000
Recorded with HM Land Registry.
Sales timeline
9 May 2024Most recent
£320,000
Median price across the last 5 sales in NN1 4JD: £200,000 (2024–2019).
Nearby sales in NN1 4JD
Versus other Henry Street homes
Price per m² for First Floor Flat runs comfortably ahead of the street norm.
Price per m²
£6,154
Street avg £2,054
Floor Area
52 m²
Street avg 46 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.8 t/year
Everything you need to know about First Floor Flat
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
0.2 km
Clare Street — bus stop.
Closest school
0.4 km
Stimpson Avenue 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
42.0dB






