12 Hillside, Slough, SL1 2RW
About 12 Hillside
12 Hillside is a mid-terrace house in Slough (SL1 2RW). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (September 2018) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. At 107 m² it's 25.9% larger than the typical home in the postcode (85 m² median across 40 EPCs). Across 2004–2024, sale prices on this property compounded at 5.3% per year. On a £-per-square-foot basis, the last sale (£313/sq ft) was about 69.5% above the typical sold price in the postcode. Last sale on file: £359,950 in November 2024.
Energy performance
EPC Rating
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Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
3 applications on record at 12 Hillside, Slough, SL1 2RW
- Nov 2024ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6.0m, with a maximum height of 2.9m, and an eaves height of 2.8m
- Documents
- 2 docs on file
- Reference
- Y/20667/000
- More recent applications — locked
- OutbuildingMar 2026Decision
- Loft ConversionDec 2024Decision
Unlock 12 Hillside, Slough, SL1 2RW's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 19 notable nearby
- The 4 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Hillside has more than doubled in price since the earliest registered sale in 2004.
£388,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 20 years.
£359,950
Growth on file: 5.3% per year over 20 years.
Sales timeline
22 November 2024Most recent
£359,950
+108.1%over 17 years24 November 2006
£173,000
+35.7%over 1 year26 November 2004
£127,500
Median price across the last 5 sales in SL1 2RW: £440,000 (2025–2024).
Versus other Hillside homes
12 Hillside is notably below the street on years held.
Price per m²
£3,364
Street avg £2,910
Floor Area
107 m²
Street avg 87 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.3 t/year
Street avg 3.7 t/year
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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
Ellis Avenue — bus stop.
Closest school
0.4 km
Slough and Eton Church of England Business and Enterprise College. 31 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
55.1dB

Night-time· 23:00 – 07:00
46.6dB







