47 Semilong Road, Northampton, NN2 6BT
About 47 Semilong Road
47 Semilong Road is a one-bedroom mid-terrace house in Northampton (NN2 6BT). It has a recorded floor area of 157 m² (around 1690 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (May 2023) shows a C (score 76), near the top of the C band. When first surveyed in February 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and window efficiency went from Average to Good. The recommended improvements would push it to B (score 87).
At 157 m² the property is well over the postcode median (41 m² across 38 EPCs), placing it in the larger end of the local stock. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Across 2006–2013, sale prices on this property compounded at -0.8% per year. Today's modelled estimate of £320,000 sits 96.9% above the 2013 sale of £162,500. On a £-per-square-foot basis, the last sale (£96/sq ft) was about 24.5% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include HMO conversion, meaningful when judging how the property has evolved. On the market in April 2013 and unlisted since — roughly 13 years.
What this property has
Inside
- Bedrooms1
- Bathrooms2
Everything you need to know about 47 Semilong Road
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
Window efficiency improved
Wall insulation improved
Roof insulation improved
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 £955 · Includes VAT
Planning history
2 applications on record at 47 Semilong Road, Northampton, NN2 6BT
- Nov 2023HMOAmendmentOutcome in report
Lawful Development Certificate for existing use as 5 person House in Multiple Occupation (Use Class C4)
Retrospective- Documents
- 14 docs on file
- Reference
- WNN/2023/0751
- More recent applications — locked
- HMOApr 2026Decision
Unlock 47 Semilong Road, Northampton, NN2 6BT's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 37 notable nearby
- The 29 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
47 Semilong Road valuation sits well clear of the typical sold price in this postcode.
£320,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.8% per year over 7 years.
£162,500
Growth on file: -0.8% per year over 7 years.
Sales timeline
25 April 2013Most recent
£162,500
-5.8%over 7 years10 March 2006
£172,500
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
EPC Rating for 47 Semilong Road runs comfortably ahead of the street norm.
Price per m²
£1,035
Street avg £986
Floor Area
157 m²
Street avg 147 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
4.1 t/year
Street avg 6.2 t/year
Everything you need to know about 47 Semilong Road
The true value, the hidden risks and the full sale history, in one report.
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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






