21a, Commonside, Keston, BR2 6BP
About 21a
21a is a detached house in Keston (BR2 6BP). It has a recorded floor area of 233 m² (around 2508 sq ft) and construction records dating it to 2021. The latest certificate (May 2021) returns a B (score 84), comfortably above the UK average.
At 233 m² the property is well over the postcode median (171 m² across 14 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 4 planning records sit against the property, 1 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
21a ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Planning history
- Oct 2025Tree WorksTreesIn report
x4 Lime trees on right side boundary in rear garden - Re-pollard as frequently as required for a period of 10 years
- Documents
- 2 docs on file
- Reference
- 25/04389/TCA
- Sept 2023Tree WorksTreesIn report
x2 Lime trees on front boundary - Reduce crown by 2.5m. SUBJECT TO TPO 1789 (8.3.2001)
- Agent
- Orpington Tree Care
- Documents
- 5 docs on file
- Reference
- 23/02832/TPO
What's in 21a, Commonside, Keston, BR2 6BP's planning history?
2 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,420,000
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 BR2 6BP: £1,625,000 (2024–2019).
Everything we know about 21a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Commonside homes
EPC Rating for 21a runs comfortably ahead of the street norm.
EPC Rating
84 (B)
Street avg 57 (D)
Floor Area
233 m²
Street avg 157 m²
CO₂ Emissions
3.0 t/year
Street avg 6.9 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Keston / The Fox — bus stop.
Closest school
0.4 km
Keston Church of England 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
52.3dB
Night-time· 23:00 – 07:00
44.0dB