3a, Ambleside Avenue, Walton On Thames, KT12 3LJ
About 3a
3a is a three-bedroom mid-terrace house in Walton On Thames (KT12 3LJ). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (March 2025) shows a C (score 74). The rating has held steady at C across 9 certificates since May 2010. Between certificates, roof efficiency went from Good to Very Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 87).
Untraded for 19 years, with the last transfer in November 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 75 m² the property is well over the postcode median (48 m² across 27 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Today's modelled estimate of £516,000 sits 68.6% above the 2007 sale of £306,000.
Know exactly what you're buying at 3a
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
- Bedrooms3
- Dining roomYes
- CloakroomYes
- EnsuiteYes
- FireplaceYes
Outside
- Private gardenRear
- ParkingYes
Building
- Heating systemGas
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
More low energy lighting installed
Heating controls changed
Wall insulation upgraded
Roof insulation improved
Heating controls upgraded for better temperature management
Wall insulation improved
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Wall insulation improved
Low energy lighting percentage decreased
More low energy lighting installed
Heating controls changed
Window efficiency improved
Heating controls upgraded for better temperature management
Cavity wall insulation installed
Roof insulation improved
Floor insulation added or improved
Planning history
3a has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 2 things worth checking at 3a
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
- Environmental risk flagged
30-day money-back guarantee
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£516,000
Modelled from EPC, postcode comparables.
£306,000
Recorded with HM Land Registry.
Sales timeline
26 November 2007Most recent
£306,000
Median price across the last 5 sales in KT12 3LJ: £495,000 (2025–2022).
Nearby sales in KT12 3LJ
30 Ambleside Avenue, Walton On Thames, KT12 3LJ
Sold Apr 2025
£545,00042 Ambleside Avenue, Walton On Thames, KT12 3LJ
Sold Nov 2022
£900,0002 Etheridge Court, Ambleside Avenue, Walton On Thames, KT12 3LJ
Sold Aug 2022
£295,0002 Blakenden Court, Ambleside Avenue, Walton On Thames, KT12 3LJ
Sold May 2022
£335,5002 Shelley Court, Ambleside Avenue, Walton On Thames, KT12 3LJ
Sold Sept 2021
£292,000
Everything we know about 3a, 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
- Environmental risk flagged

Versus other Ambleside Avenue homes
On epc rating, 3a stands well clear of the street.
Price per m²
£4,080
Street avg £5,092
Floor Area
75 m²
Street avg 59 m²
Habitable Rooms
5 rooms
Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 2.6 t/year
Similar properties nearby
1 Hawthorne Court, Ambleside Avenue
KT12 3LA
1 Byeways, Field Common Lane
KT12 3QH
1 Cardinal Drive
KT12 3AX
1 Field Common Lane
KT12 3QH
1 Carrow Road
KT12 3JZ
1 Beecot Lane
KT12 3JW
1 Ambleside Avenue
KT12 3LJ
1 Byron Close
KT12 3RL
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
St Johns Drive — bus stop.
Closest school
0.1 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
47.5dB

Night-time· 23:00 – 07:00
37.2dB