4 Greenfern Avenue, Slough, SL1 6AQ
About 4 Greenfern Avenue
4 Greenfern Avenue is a semi-detached house in Slough (SL1 6AQ). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (October 2025) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78).
2 planning records sit against the property, 1 approved, 0 refused, 1 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. A recent sale: £493,000 in January 2026. At 97 m² it's 22.8% larger than the typical home in the postcode (79 m² median across 25 EPCs). Today's modelled estimate of £559,000 is 13.4% above the 2026 sale price. On a £-per-square-foot basis, the last sale (£472/sq ft) was about 84.9% above the typical sold price in the postcode.
Everything you need to know about 4 Greenfern Avenue
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The data behind every report
Energy performance
EPC Rating
Certificate validity
Valid until 27 October 2035
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Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
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Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
2 applications on record at 4 Greenfern Avenue, Slough, SL1 6AQ
1 live now- Feb 2026Loft ConversionOutlineOutcome in report
Extension: Single storey
Lawful Development Certificate for a proposed single storey front extension to form porch, loft conversion to create habitable accommodation with rear dormer extension, 3no. rooflights to the front elevation and single storey outbuiding to the rear garden.
- Council
- West Area
Extension- Reference
- P/02200/001
- More recent applications — locked
- ExtensionApr 2026Decision
Unlock 4 Greenfern Avenue, Slough, SL1 6AQ'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- Every decision — granted, refused or withdrawn (1 on record)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 2 applications on this property in full, plus 5 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
4 Greenfern Avenue valuation sits well clear of the typical sold price in this postcode.
£559,000
Modelled from EPC, postcode comparables.
£493,000
Recorded with HM Land Registry.
Sales timeline
9 January 2026Most recent
£493,000
Median price across the last 5 sales in SL1 6AQ: £465,000 (2025–2021).
Nearby sales in SL1 6AQ
Versus other Greenfern Avenue homes
Years Held for 4 Greenfern Avenue lags the street by a wide margin.
Price per m²
£5,082
Street avg £3,898
Floor Area
97 m²
Street avg 95 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.1 t/year
Everything you need to know about 4 Greenfern Avenue
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
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
Westlands Avenue — bus stop.
Closest school
0.6 km
Our Lady of Peace Catholic Primary and Nursery School. 14 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
52.6dB
Night-time· 23:00 – 07:00
44.2dB