20a, Hook Road, Surbiton, KT6 5BH
About 20a
20a is a one-bedroom semi-detached house in Surbiton (KT6 5BH). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 1900-1929 and council tax band B. At 38 m² this is the 2nd smallest of 3 units on EPC record in 20a, where floor areas span 35–115 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (53 versus a best of 70). The latest certificate (June 2018) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2008); the latest reading is one band lower. Between certificates, lighting went from Poor to Good. The recommended improvements would lift it to C (score 72), a 2-band jump.
At 38 m² it sits well below the postcode median (68 m² across 53 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs).
Know exactly what you're buying at 20a
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
Outside
- Communal gardenYes
- ParkingOff street
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Ventilation system changed
Heating controls upgraded for better temperature management
External or internal wall insulation added
Loft insulation installed or upgraded to 250mm+
Low energy lighting percentage decreased
Heating controls changed
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
Planning history
20a has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 20a
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
20a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£249,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in KT6 5BH: £640,000 (2025–2024).
Nearby sales in KT6 5BH
Everything we know about 20a, 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 Hook Road homes
EPC Rating for 20a lags the street by a wide margin.
EPC Rating
53 (E)
Street avg 73 (C)
Floor Area
38 m²
Street avg 64 m²
CO₂ Emissions
2.8 t/year
Street avg 2.0 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Similar properties nearby
1 Brighton Road
KT6 5LX
1 Copper Gate Mews, Brighton Road
KT6 5NE
1 Malvern Court, Hook Road
KT6 5AB
1 Dover Cottages, Seething Wells Lane
KT6 5NP
1 Calendar Mews, Electric Parade
KT6 5NY
1 Edward Pinner Court, 110 Hook Road
KT6 5DF
1 Balaclava Road
KT6 5PW
1 Chesham Court, Brighton Road
KT6 5PS
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Ash Tree Close — bus stop.
Closest school
0.5 km
Southborough High School. 32 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
44.4dB