108a, Sidney Road, Walton On Thames, KT12 3SA
About 108a
108a is a six-bedroom detached house in Walton On Thames (KT12 3SA). It has a recorded floor area of 240 m² (around 2583 sq ft), construction records dating it to 2007-2011 and council tax band G. The latest certificate (June 2023) returns a B (score 81), comfortably above the UK average.
It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 240 m² the property is well over the postcode median (128 m² across 32 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. Today's modelled estimate of £1,400,000 sits 75% above the 2009 sale of £800,000. One planning record on file: an extension approved in 2015. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.
Know exactly what you're buying at 108a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms6
- Bathrooms4
Energy performance
108a ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Apr 2015DemolitionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension following demolition of conservatory and bay window
Extension- Documents
- 12 docs on file
- Reference
- 2015/0638
We flagged 1 thing worth checking at 108a
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.
- Larger development activity nearby
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Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£1,400,000
Modelled from EPC, postcode comparables.
£800,000
Recorded with HM Land Registry.
Sales timeline
27 July 2009Most recent
£800,000
Median price across the last 5 sales in KT12 3SA: £885,000 (2025–2021).
Nearby sales in KT12 3SA
Flat 1, 139 Sidney Road, Walton On Thames, KT12 3SA
Sold Sept 2025
£290,000108 Sidney Road, Walton On Thames, KT12 3SA
Sold Jul 2024
£1,370,000157 Sidney Road, Walton On Thames, KT12 3SA
Sold Nov 2022
£885,00094 Sidney Road, Walton On Thames, KT12 3SA
Sold Oct 2022
£1,248,000155 Sidney Road, Walton On Thames, KT12 3SA
Sold Jun 2021
£835,000
Everything we know about 108a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Sidney Road homes
On floor area, 108a stands well clear of the street.
Price per m²
£3,333
Street avg £5,480
Floor Area
240 m²
Street avg 162 m²
Habitable Rooms
9 rooms
Street avg 6 rooms
CO₂ Emissions
4.0 t/year
Street avg 7.5 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Walton Hospital — bus stop.
Closest school
0.5 km
Walton Oak Primary School. 14 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
48.3dB

Night-time· 23:00 – 07:00
38.7dB