12a, Clements Road, Walton On Thames, KT12 3LY
About 12a
12a is an end-of-terrace house in Walton On Thames (KT12 3LY). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1983-1990 and council tax band C. At 51 m² this is the smallest unit on EPC record across the building (51–196 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (October 2021) shows a C (score 71). The rating has held steady at C across 3 certificates since December 2010. Between certificates, window efficiency went from Poor to Average; while hot-water efficiency dropped from Good to Average.
It hasn't traded since June 2003, a hold of 23 years that's notably long for the area. Across 1998–2003, sale prices on this property compounded at 16.7% per year. Today's modelled estimate of £272,000 sits 87.6% above the 2003 sale of £145,000. At 51 m² it sits well below the postcode median (82 m² across 17 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 12a
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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Heating controls upgraded for better temperature management
Hot water system changed
Planning history
12a has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 12a
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
12a has more than doubled in price since the earliest registered sale in 1998.
£272,000
Modelled from EPC, postcode comparables and a sale-price growth of 16.7% per year over 5 years.
£145,000
Growth on file: 16.7% per year over 5 years.
Sales timeline
17 June 2003Most recent
£145,000
+26.1%over 2 years24 August 2000
£115,000
+69.1%over 2 years23 July 1998
£68,000
Median price across the last 5 sales in KT12 3LY: £427,500 (2025–2021).
Nearby sales in KT12 3LY
3a, Clements Road, Walton On Thames, KT12 3LY
Sold Oct 2025
£427,5006a, Clements Road, Walton On Thames, KT12 3LY
Sold Nov 2022
£365,000Elbury, Clements Road, Walton On Thames, KT12 3LY
Sold Jun 2022
£775,0004 Clements Road, Walton On Thames, KT12 3LY
Sold Mar 2021
£810,00010 Clements Road, Walton On Thames, KT12 3LY
Sold Mar 2021
£410,000
Everything we know about 12a, 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 Clements Road homes
Floor Area for 12a lags the street by a wide margin.
Price per m²
£2,843
Street avg £3,677
Floor Area
51 m²
Street avg 60 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.4 t/year
Similar properties nearby
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1 Betley Court
KT12 3BT
1 Gladsmuir Close
KT12 3JD
1 Cheriton Court
KT12 3NY
1 Byron Close
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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
0.4 km
Walton Oak Primary School. 13 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
48.1dB
Night-time· 23:00 – 07:00
38.3dB