26 Marriott Street, Semilong, Northampton, NN2 6AW
About 26 Marriott Street
26 Marriott Street is a one-bedroom detached house in Semilong, Northampton, Northampton (NN2 6AW). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (April 2025) shows a C (score 71). When first surveyed in May 2010 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Average. The recommended improvements would push it to B (score 90). Main heating runs on electricity.
A recent sale: £125,000 in February 2025. At 42 m² it sits well below the postcode median (156 m² across 12 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Across 2002–2025, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £144,000 is 15.2% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£276/sq ft) was about 200.1% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 0 refused.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
- ParkingOff street
Building
- RefurbishedYes
Everything you need to know about 26 Marriott Street
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
Wall insulation improved
More low energy lighting installed
Hot water efficiency improved
Single glazing replaced with double or better glazing
Wall insulation improved
Roof insulation improved
Floor insulation added or improved
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
2 applications on record at 26 Marriott Street, Semilong, Northampton, NN2 6AW
- Aug 2003AmendmentOutcome in report
USE AS AS SINGLE GROUND FLOOR FLAT
- Documents
- 7 docs on file
- Reference
- N/2003/0920
- More recent applications — locked
- ExtensionDec 2003Decision
Unlock 26 Marriott Street, Semilong, Northampton, NN2 6AW'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 17 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 26 Marriott Street has grown more than fourfold since the 2002 starting point.
£144,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 23 years.
£125,000
Growth on file: 6.9% per year over 23 years.
Sales timeline
28 February 2025Most recent
£125,000
+346.4%over 22 years22 August 2002
£28,000
Median price across the last 5 sales in NN2 6AW: £240,000 (2021–2013).
Nearby sales in NN2 6AW
2 Marriott Street, Semilong, Northampton, NN2 6AW
Sold Sept 2021
£350,00025 Marriott Street, Semilong, Northampton, NN2 6AW
Sold Sept 2020
£307,10117 Marriott Street, Semilong, Northampton, NN2 6AW
Sold Nov 2018
£240,00022 Marriott Street, Semilong, Northampton, NN2 6AW
Sold Mar 2016
£240,000Flat 1, 19 Marriott Street, Semilong, Northampton, NN2 6AW
Sold Mar 2013
£103,000
Versus other Marriott Street homes
Price per m² for 26 Marriott Street runs comfortably ahead of the street norm.
Price per m²
£2,976
Street avg £1,110
Floor Area
42 m²
Street avg 196 m²
Habitable Rooms
2 rooms
Street avg 8 rooms
CO₂ Emissions
2.7 t/year
Street avg 9.4 t/year
Everything you need to know about 26 Marriott Street
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
0.1 km
Marriott Street — bus stop.
Closest school
0.3 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
51.1dB

Night-time· 23:00 – 07:00
41.5dB






