Flat 5, 12 St Leonard S Road, Surbiton, KT6 4DE
About Flat 5
Flat 5 is a one-bedroom semi-detached house in Surbiton (KT6 4DE). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1900-1929 and council tax band C. At 44 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 32–76 m². The building's EPC ratings span E to C, with this unit at the top. Period features are noted in the property record. The latest certificate (May 2023) shows a C (score 70). The rating has held steady at C across 2 certificates since October 2009. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.
At 44 m² it's 21.6% smaller than the typical home in the postcode (56 m² median across 41 EPCs). Its energy rating outperforms most of the postcode (better than 76% of similar EPCs). Across 1997–2024, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£707/sq ft) was about 77.7% above the typical sold price in the postcode. Most recent transfer: July 2024 at £335,000.
Know exactly what you're buying at Flat 5
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
- Bedrooms1
- Bathrooms1
Building
- Period featuresYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
More low energy lighting installed
Planning history
Flat 5 has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 5
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
Price for Flat 5 has grown more than fourfold since the 1997 starting point.
£348,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 27 years.
£335,000
Growth on file: 6.1% per year over 27 years.
Sales timeline
30 July 2024Most recent
£335,000
8 July 2018
£335,000
15 September 2014
£335,250
+34.1%over 1 year17 April 2013
£249,950
+13.6%over 2 years20 May 2010
£220,000
+24.0%over 4 years14 July 2005
£177,450
+18.3%over 3 years11 January 2002
£149,950
+120.5%over 4 years18 September 1997
£68,000
Median price across the last 5 sales in KT6 4DE: £452,500 (2025–2023).
Nearby sales in KT6 4DE
15 St Leonard S Road, Surbiton, KT6 4DE
Sold Feb 2025
£1,040,000Basement Flat, 3 St Leonard S Road, Surbiton, KT6 4DE
Sold Feb 2025
£356,000Garden Flat, 1 St Leonard S Road, Surbiton, KT6 4DE
Sold Jul 2024
£440,000Basement Flat, 6 St Leonard S Road, Surbiton, KT6 4DE
Sold Mar 2024
£452,50010 St Leonard S Road, Surbiton, KT6 4DE
Sold Nov 2023
£2,550,000
Everything we know about Flat 5, 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 St Leonard S Road homes
Flat 5 is notably below the street on years held.
Price per m²
£7,614
Street avg £6,222
Floor Area
44 m²
Street avg 50 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.6 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
St Leonard's Road — bus stop.
Closest school
0.1 km
St Andrew's and St Mark's CofE Junior School. 35 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
53.8dB

Night-time· 23:00 – 07:00
44.8dB