17 Castle Avenue, Datchet, Slough, SL3 9BA
About 17 Castle Avenue
17 Castle Avenue is a three-bedroom detached house in Datchet, Slough, Slough (SL3 9BA). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (December 2023) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since April 2009. Between certificates, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to C (score 77), a 2-band jump. Records show the property has been extended at some point in its history.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1996–2016, sale prices on this property compounded at 8.9% per year. Today's modelled estimate of £608,000 is 31.3% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£336/sq ft) was about 21.4% below the postcode norm. Last changed hands 10 years ago, in September 2016.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- Utility roomYes
Outside
- Private gardenYes
- GarageYes
Building
- Previously extendedYes
Energy performance
17 Castle Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 4 December 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
More low energy lighting installed
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Planning history
17 Castle Avenue has 2 separate extension applications on the council record.
2 applications on record at 17 Castle Avenue, Datchet, Slough, SL3 9BA
- Sept 2016ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension no greater than 4.30m depth, 3.90m high and an eaves height of 2.85m
- Documents
- 7 docs on file
- Reference
- 16/02821/PDXL
- More recent applications — locked
- ExtensionNov 2016Decision
Unlock 17 Castle Avenue, Datchet, Slough, SL3 9BA'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- Every decision — granted, refused or withdrawn (2 on record)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
- The 16 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 17 Castle Avenue has grown more than fourfold since the 1996 starting point.
£608,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.9% per year over 20 years.
£463,000
Growth on file: 8.9% per year over 20 years.
Sales timeline
25 September 2016Most recent
£463,000
+471.6%over 20 years2 May 1996
£81,000
Median price across the last 5 sales in SL3 9BA: £650,000 (2024–2022).
Nearby sales in SL3 9BA
10 Castle Avenue, Datchet, Slough, SL3 9BA
Sold Dec 2024
£650,0008 Castle Avenue, Datchet, Slough, SL3 9BA
Sold Sept 2023
£650,0004 Castle Avenue, Datchet, Slough, SL3 9BA
Sold Dec 2022
£625,0005 Castle Avenue, Datchet, Slough, SL3 9BA
Sold Sept 2022
£625,00021 Castle Avenue, Datchet, Slough, SL3 9BA
Sold May 2022
£1,085,000
Versus other Castle Avenue homes
On co₂ emissions, 17 Castle Avenue runs well behind the street norm.
Price per m²
£3,617
Street avg £4,946
Floor Area
128 m²
Street avg 123 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
7.1 t/year
Street avg 5.8 t/year
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The neighbourhood at a glance
Crime
298/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Slough Road — bus stop.
Closest school
0.8 km
Churchmead Church of England (VA) School. 23 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
58.0dB

Night-time· 23:00 – 07:00
52.5dB







