Model valuation£417,0008 Busby Close
Local market context
9 Castle Street, Slough, SL1 2AX
3 sales on record1 planning record
Estimated value
£359,000
- Since the 2023 sale (£309,000)+16%
- Against SL1 2AX's recent median (£325,000)+10%
Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Mid terrace
Habitable rooms
5
From EPC
Floor area
78 m²
840 sq ft
Energy rating
D
Score 64
Council tax
Band C
Tenure
Private Rental
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
£359,000
- Against its 2023 sale (£309,000)+16%
- Against SL1 2AX's recent median (£325,000)+10%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 9 Castle Street is modelled from its 78 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SL1 2AX. 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
78 m² from the EPC lodged in July 2019
Sales of this home
3 sales recorded, the latest in 2023
Recent sales in SL1 2AX
5 sales, median £325,000 (2026–2015)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: March 2026 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 application | 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.
9 Castle Street has more than doubled in price since the earliest registered sale in 2001.
Sales timeline
26 April 2023Most recent
£309,000
+66.1%over 17 years3 November 2005
£186,000
+46.5%over 4 years26 January 2001
£127,000
Median price across the last 5 sales in SL1 2AX: £325,000 (2026–2015).
What this page doesn't show
1 potential issue has already been flagged for 9 Castle Street, Slough, SL1 2AX. 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 9 Castle Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
9 Castle Street is a mid-terrace house in Slough (SL1 2AX). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (July 2019) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump.
One planning record on file: a loft conversion approved in 2019. Past consents include a loft conversion, meaningful when judging how the property has evolved. Across 2001–2023, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £359,000 is 16.2% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£368/sq ft) was about 69.9% above the typical sold price in the postcode. Last sale on file: £309,000 in April 2023.
Before you decide
Everything you need to know about 9 Castle Street
The true value, the hidden risks and the full sale history, in one report.
Signs of HMO activity in the area
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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.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate
Jul 2019EPC Rating
A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.4 t/year
Occupancy
Rented
Certificate validity
Valid until 23 July 2029
Planning history
Applications and permits filed against 9 Castle Street, Slough, SL1 2AX, sourced from the PlanIt planning register.
1 application on record at 9 Castle Street, Slough, SL1 2AX
1decisions1extensions2documents18nearby
- Sept 2019Loft ConversionOutlineOutcome in report
Lawful development certificate for a proposed loft conversion with rear dormer and 2no front roof lights.
- Council
- East
- Documents
- 2 docs on file
- Reference
- P/17854/000
Unlock 9 Castle Street, Slough, SL1 2AX's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 18 notable nearby
- The 2 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Castle Street homes
Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.
Floor Area for 9 Castle Street lags the street by a wide margin.
Price per m²
£3,962
Street avg £2,930
Floor Area
78 m²
Street avg 86 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.4 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.
Rail-style transport is unusually close for this postcode.
Crime
656/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Red Cow Roundabout — bus stop.
Closest school
0.3 km
St Mary's Church of England Primary School. 32 schools nearby.
Nearest schools
- St Mary's Church of England Primary SchoolPrimary324m
- Upton Court Grammar SchoolSecondary774m
- Slough and Eton Church of England Business and Enterprise CollegeSecondary966m
- St Bernard's Catholic Grammar SchoolSecondary1.1km
Nearest stops
- Red Cow RoundaboutBus stop149m
- St Laurence WayBus stop183m
- Mountbatten CloseBus stop224m
- Herschel StreetBus stop409m
Most reported crime locally
- Violence & Sexual Offences3,706 reports38%
- Anti-social Behaviour911 reports9%
- Vehicle Crime869 reports9%
- Public Order773 reports8%
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 SL1 2AX from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
57.3dB
Night-time· 23:00 – 07:00
49.9dB
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-eraMid-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.
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1 Chalvey Road West
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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 9 Castle Street is modelled from its 78 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SL1 2AX. 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. 3 sales are recorded for 9 Castle 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 9 Castle Street was lodged in July 2019 at band D and is valid until July 2029. Floor area, heating and insulation details on this page come from it.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 9 Castle 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 32 schools and 30 stops listed are measured in a straight line from SL1 2AX, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 9 Castle 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 9 Castle Street, Slough, SL1 2AX. Each answer is also embedded as structured data for search engines.
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- Every home in SL1 2AXSold prices, values and energy ratings for the postcode
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