21 Gloucester Avenue, Slough, SL1 3AW
About 21 Gloucester Avenue
21 Gloucester Avenue is a semi-detached house in Slough (SL1 3AW). It has a recorded floor area of 86 m² (around 921 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (March 2012) shows an E (score 46), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from March 2012, so improvements made since then won't be reflected.
5 planning records sit against the property, 4 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21 Gloucester Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
21 Gloucester Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Mar 2022
EPC Rating
Planning history
A recent planning application at 21 Gloucester Avenue was refused — worth checking the council file.
- Nov 2024OutbuildingFullIn report
Construction of a rear outbuilding for use of storage, office and gym
- Documents
- 3 docs on file
- Reference
- P/15761/004
- Jun 2024OutbuildingFullIn report
Construction of a single storey rear outbuilding with 1no roof light for use of gym, office and store
- Documents
- 2 docs on file
- Reference
- P/15761/003
We flagged 1 thing worth checking at 21 Gloucester Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
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Sales history & valuation
21 Gloucester Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£403,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SL1 3AW: £280,000 (2021–2009).
Nearby sales in SL1 3AW
Everything we know about 21 Gloucester Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Gloucester Avenue homes
On floor area, 21 Gloucester Avenue runs well behind the street norm.
EPC Rating
46 (E)
Street avg 58 (D)
Floor Area
86 m²
Street avg 104 m²
CO₂ Emissions
6.0 t/year
Street avg 5.0 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Farnham Road PO — bus stop.
Closest school
0.2 km
Phoenix Infant Academy. 31 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.0dB

Night-time· 23:00 – 07:00
40.2dB