3 High Street, Sunningdale, Ascot, SL5 0LX
About 3 High Street
3 High Street is a four-bedroom detached house in Sunningdale, Ascot, Ascot (SL5 0LX). It has a recorded floor area of 154 m² (around 1658 sq ft) and construction records dating it to 1950-1966. The latest certificate (January 2020) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2013 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Good to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 80).
2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion, an extension and a garage conversion, meaningful when judging how the property has evolved. Across 2014–2020, sale prices on this property compounded at 9.8% per year. Today's modelled estimate of £997,000 is 17.3% above the 2020 sale price. Last sale on file: £850,000 in September 2020.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenSouth-west-facing
- DrivewayYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Planning history
- May 2022Loft ConversionFullIn report
Hip to gable, 2no. front dormers and 1no. rear dormer.
- Documents
- 10 docs on file
- Reference
- 22/00788/FULL
- Dec 2015Loft ConversionFullIn report
Extension: Single storey · Side of property
Single storey side extension, garage conversion to habitable accommodation, enlargement of existing roof with addition of one rear dormer and extension to existing front dormer to facilitate loft conversion. Alterations to vehicular access and construction of a carport.
ExtensionGarage Conversion- Documents
- 17 docs on file
- Reference
- 15/03101/FULL
What's in 3 High Street, Sunningdale, Ascot, SL5 0LX's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£997,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.8% per year over 6 years.
£850,000
Growth on file: 9.8% per year over 6 years.
Sales timeline
10 September 2020Most recent
£850,000
+81.8%over 6 years10 April 2014
£467,500
Median price across the last 2 sales in SL5 0LX: £382,500 (2012–1999).
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Sandy Lane — bus stop.
Closest school
0.3 km
Holy Trinity CofE Primary School, Sunningdale. 6 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
47.7dB

Night-time· 23:00 – 07:00
39.5dB







