Model valuation£417,0008 Busby Close
Local market context
21 Mill Street, Colnbrook, Slough, SL3 0JJ
Estimated value
£348,000
- Since the 1999 sale (£98,500)+253%
- Against SL3 0JJ's recent median (£294,000)+18%
Newest record on this page: October 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
End terrace
Bedrooms
2
Bathroom
1
Floor area
59 m²
635 sq ft
Energy rating
D
Score 65
Council tax
Band C
Tenure
Owner Occupied
About this valuation
How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.
Our estimate
£348,000
- Against its 1999 sale (£98,500)+253%
- Against SL3 0JJ's recent median (£294,000)+18%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Mill Street is modelled from its 59 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SL3 0JJ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
What it's based on
Floor area
59 m² from the EPC lodged in September 2025
Sales of this home
1 sale recorded, the latest in 1999
Recent sales in SL3 0JJ
5 sales, median £294,000 (2025–2005)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: October 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | None on this home | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
Latest sale on 21 Mill Street was the lowest on Land Registry record across the postcode.
Sales timeline
27 May 1999Most recent
£98,500
Median price across the last 5 sales in SL3 0JJ: £294,000 (2025–2005).
What this page doesn't show
1 potential issue has already been flagged for 21 Mill Street, Colnbrook, Slough, SL3 0JJ. The detail, evidence and what to ask about it are in the Risks Report.
- Signs of HMO activity in the areaIn report
- Flood risk from rivers, sea and surface waterIn report
- Subsidence and ground-stability signalsIn report
- Refusals, enforcement and big schemes nearbyIn report
One time fee only - money back guarantee
About 21 Mill Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
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 £348,000 sits 253.3% 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
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
Building
- Period featuresYes
- RefurbishedYes
Before you decide
Everything you need to know about 21 Mill Street
The true value, the hidden risks and the full sale history, in one report.
Signs of HMO activity in the area
Pick your report · from £14.99
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate
Sept 2025EPC Rating
A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.6 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 24 September 2035
Planning history
Applications and permits filed against 21 Mill Street, Colnbrook, Slough, SL3 0JJ, sourced from the PlanIt planning register.
21 Mill Street has no planning applications on record.
5
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Versus other Mill Street homes
Four headline reads against 4 similar houses on this street, drawn from the latest EPC and Land Registry data.
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
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Slough district page.
Crime
298/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.
Nearest schools
- Colnbrook Church of England Primary SchoolPrimary240m
- Pippins SchoolPrimary826m
- Foxborough Primary SchoolPrimary1.9km
- Holy Family Catholic Primary SchoolPrimary2.3km
Nearest stops
- Star & GarterBus stop175m
- Ye Olde George InnBus stop208m
- Red LionBus stop475m
- Coleridge Crescent WestBus stop504m
Most reported crime locally
- Violence & Sexual Offences1,666 reports37%
- Anti-social Behaviour506 reports11%
- Vehicle Crime488 reports11%
- Criminal Damage & Arson388 reports9%
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
Modelled day and night-time noise levels around SL3 0JJ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
53.1dB
Night-time· 23:00 – 07:00
47.8dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
Get a survey for this property
Level 3 Building Survey
Victorian-eraEnd-Terrace HouseEPC DPre-1919 buildSolid (non-cavity) walls
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
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£355k
1 Harbans Court, Colnbrook
SL3 0PG
2 bed
£333k
1 Ashley Cottages, High Street, Colnbrook
SL3 0HA
2 bed1 bath
£320k
1 Hadley Court, Coleridge Crescent, Colnbrook
SL3 0PL
2 bed
£384k
1 Colne Cottages, Albany Park, Colnbrook
SL3 0JT
2 bed1 bath
£399k
1 Garden Cottages, High Street, Colnbrook
SL3 0LZ
2 bed1 bath
£409k
1 Elbow Meadow, Old Bath Road, Colnbrook
SL3 0NY
2 bed1 bath
£295k
1 Dickens Place, Colnbrook
SL3 0PU
2 bed2 bath
£365k
1 Bath Road Cottages, Old Bath Road, Colnbrook
SL3 0JA
1 bed
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Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 21 Mill Street is modelled from its 59 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SL3 0JJ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
- Where sold prices come from
- Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 21 Mill Street. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
- Reading the EPC
- Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Mill Street was lodged in September 2025 at band D and is valid until September 2035. Floor area, heating and insulation details on this page come from it.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Mill Street. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
- Area figures
- Crime is police-recorded street-level data over the last 15 months, which places each incident at an approximate point. The 10 schools and 30 stops listed are measured in a straight line from SL3 0JJ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 21 Mill Street is in council tax band C. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Mill Street, Colnbrook, Slough, SL3 0JJ. Each answer is also embedded as structured data for search engines.
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