12a, Ash Tree Close, Surbiton, KT6 5BQ
About 12a
12a is a two-bedroom mid-terrace house in Surbiton (KT6 5BQ). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1976-1982 and council tax band D. At 102 m² this is the largest unit on EPC record across the building (40–102 m²). The building's EPC ratings span D to B across 24 units on file. The latest certificate (March 2020) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since July 2013. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good.
At 102 m² the property is well over the postcode median (71 m² across 23 EPCs), placing it in the larger end of the local stock. Across 2010–2020, sale prices on this property compounded at 7.6% per year. Last sale on file: £447,500 in May 2020.
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
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
Outside
- Communal gardenYes
- GarageYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
12a has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things 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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
Latest sale on 12a was the highest on Land Registry record across the postcode.
£453,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 10 years.
£447,500
Growth on file: 7.6% per year over 10 years.
Sales timeline
11 May 2020Most recent
£447,500
+113.1%over 10 years2 February 2010
£210,000
Median price across the last 5 sales in KT6 5BQ: £350,000 (2023–2018).
Nearby sales in KT6 5BQ
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
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Ash Tree Close homes
On floor area, 12a stands well clear of the street.
Price per m²
£4,387
Street avg £4,914
Floor Area
102 m²
Street avg 65 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 1.8 t/year
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Ash Tree Close — bus stop.
Closest school
0.6 km
Southborough High School. 33 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
53.5dB

Night-time· 23:00 – 07:00
44.0dB