12a, Gilbert Road, Belvedere, DA17 5DA
About 12a
12a is a mid-terrace house in Belvedere (DA17 5DA). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (February 2026) shows a D (score 58), a step below the typical UK home. When first surveyed in December 2011 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition. At 53 m² this is the 4th smallest of 23 units on EPC record in the building, where floor areas span 22–117 m². The building's EPC ratings span G to C across 23 units on file.
Today's modelled estimate of £230,000 sits 820% above the 2024 sale of £25,000. On a £-per-square-foot basis, the last sale (£44/sq ft) was about 83.4% below the postcode norm. At 53 m² it's 27.4% smaller than the typical home in the postcode (73 m² median across 22 EPCs). Most recent transfer: April 2024 at £25,000.
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
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation installed or upgraded to 250mm+
Low energy lighting percentage decreased
Planning history
12a has no planning applications on record.
Notable planning nearby
6applications 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
30-day money-back guarantee
Sales history & valuation
12a's modelled value sits at over four times its earliest registered sale price (2024).
£230,000
Modelled from EPC, postcode comparables.
£25,000
Recorded with HM Land Registry.
Sales timeline
24 April 2024Most recent
£25,000
Median price across the last 5 sales in DA17 5DA: £357,500 (2022–2020).
Nearby sales in DA17 5DA
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 Gilbert Road homes
Years Held for 12a lags the street by a wide margin.
Price per m²
£472
Street avg £4,846
Floor Area
53 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.4 t/year
Street avg 2.0 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Gilbert Road — bus stop.
Closest school
0.3 km
St Augustine of Canterbury CofE Primary School. 38 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
53.1dB

Night-time· 23:00 – 07:00
43.5dB