100a, Sidney Road, Walton On Thames, KT12 3SA
About 100a
100a is a five-bedroom detached house in Walton On Thames (KT12 3SA). It has a recorded floor area of 176 m² (around 1894 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (March 2019) shows a D (score 59), a step below the typical UK home. When first surveyed in May 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Poor. The recommended improvements would push it to C (score 73).
At 176 m² the property is well over the postcode median (128 m² across 32 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2020, sale prices on this property compounded at 4.9% per year. On a £-per-square-foot basis, the last sale (£570/sq ft) was about 62.8% above the typical sold price in the postcode. Sold September 2020 for £1,080,000.
Know exactly what you're buying at 100a
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
- Bedrooms5
- Bathrooms2
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageDouble
Energy performance
100a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
- Sept 2003RenovationFullIn report
Retention of 1.6 metre high front boundary fence and gate
- Documents
- 4 docs on file
- Reference
- 2003/1751
- Jul 2000ExtensionFullIn report
Renewal of planning permission 1995/0804 for single storey rear extension.
- Documents
- 3 docs on file
- Reference
- 2000/0839
We flagged 1 thing worth checking at 100a
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
30-day money-back guarantee
Sales history & valuation
100a has more than doubled in price since the earliest registered sale in 1999.
£1,134,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 21 years.
£1,080,000
Growth on file: 4.9% per year over 21 years.
Sales timeline
3 September 2020Most recent
£1,080,000
+171.7%over 20 years28 October 1999
£397,500
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 100a, 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
100a outperforms the street on habitable rooms by a wide margin.
Price per m²
£6,136
Street avg £5,294
Floor Area
176 m²
Street avg 165 m²
Habitable Rooms
9 rooms
Street avg 6 rooms
CO₂ Emissions
7.2 t/year
Street avg 7.4 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