21 Mill Street, Colnbrook, Slough, SL3 0JJ
About 21 Mill Street
21 Mill Street is a two-bedroom end-of-terrace house in Colnbrook, Slough, Slough (SL3 0JJ). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (September 2025) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). Period features are noted in the property record.
It hasn't traded since May 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £357,000 sits 262.4% above the 1999 sale of £98,500. On a £-per-square-foot basis, the last sale (£155/sq ft) was about 32.9% below the postcode norm. At 59 m² it sits well below the postcode median (107 m² across 4 EPCs), making it one of the more compact homes locally.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
Building
- Period featuresYes
- RefurbishedYes
Everything you need to know about 21 Mill Street
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
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
21 Mill Street has no planning applications on record.
But the area is active
6 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 21 Mill Street was the lowest on Land Registry record across the postcode.
£357,000
Modelled from EPC, postcode comparables.
£98,500
Recorded with HM Land Registry.
Sales timeline
27 May 1999Most recent
£98,500
Median price across the last 5 sales in SL3 0JJ: £294,000 (2025–2005).
Versus other Mill Street homes
On price per m², 21 Mill Street runs well behind the street norm.
Price per m²
£1,669
Street avg £3,490
Floor Area
59 m²
Street avg 121 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
2.6 t/year
Street avg 4.1 t/year
Everything you need to know about 21 Mill 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
The data behind every report
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Star & Garter — bus stop.
Closest school
0.2 km
Colnbrook Church of England Primary School. 10 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
53.1dB
Night-time· 23:00 – 07:00
47.8dB