Alder House, Flat 1, Westerham Road, Keston, BR2 6HE
About Alder House
Alder House is a semi-detached house in Keston (BR2 6HE). It has a recorded floor area of 122 m² (around 1313 sq ft). At 122 m² this is the 5th smallest of 6 units on EPC record in Alder House, where floor areas span 70–142 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (March 2017) shows a C (score 80), near the top of the C band.
Across 2017–2019, sale prices on this property compounded at -52.5% per year. Today's modelled estimate of £670,000 sits 268.1% above the 2019 sale of £182,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 71.6% below the postcode norm. Last sale on file: £182,000 in May 2019. One historical planning record sits against the property in 2019.
Know exactly what you're buying at Alder House
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
EPC Rating
Planning history
- Oct 2019Tree WorksTreesIn report
T6 Lime in front of Alder House - Pollard back to old pollard points. Remove all trunk epicormic growth. G2 2xGoat Willow group next to car parks - Reduce height by 3m. G3 2x Goat Willow group at neighbours rear garden - Fell large leaning stem from above parking space back to boundary fence. Cut all overhanging branches back to fence line.
- Agent
- Bartlett Tree Experts
- Documents
- 3 docs on file
- Reference
- 19/04129/TREE
What's in Alder House, Flat 1, Westerham Road, Keston, BR2 6HE's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
£670,000
Modelled from EPC, postcode comparables and a sale-price growth of -52.5% per year over 2 years.
£182,000
Growth on file: -52.5% per year over 2 years.
Sales timeline
9 May 2019Most recent
£182,000
-74.9%over 1 year29 June 2017
£725,000
Median price across the last 5 sales in BR2 6HE: £717,750 (2022–2018).
Nearby sales in BR2 6HE
Forest Lodge, Flat 5, Westerham Road, Keston, BR2 6HE
Sold Oct 2022
£845,000The Firs, Westerham Road, Keston, BR2 6HE
Sold Mar 2022
£580,000Alder House, Flat 6, Westerham Road, Keston, BR2 6HE
Sold Jul 2021
£395,000Forest Lodge, The Gate House, Westerham Road, Keston, BR2 6HE
Sold Feb 2021
£875,000Forest Lodge, Flat 3, Westerham Road, Keston, BR2 6HE
Sold Apr 2018
£717,750
Everything we know about Alder House, 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 Westerham Road homes
Price per m² for Alder House lags the street by a wide margin.
Price per m²
£1,492
Street avg £5,632
Floor Area
122 m²
Street avg 115 m²
CO₂ Emissions
2.3 t/year
Street avg 2.1 t/year
Years Held
7 years
Street avg 8 years
Similar properties nearby
Forest Lodge, Flat 1, Westerham Road
BR2 6HE
Forest Lodge, Flat 3, Westerham Road
BR2 6HE
Forest Lodge, Flat 2, Westerham Road
BR2 6HE
Alder House, Flat 3, Westerham Road
BR2 6HE
Forest Lodge, Flat 4, Westerham Road
BR2 6HE
Forest Lodge, Flat 5, Westerham Road
BR2 6HE
130 132, Flat 5, Heathfield Road
BR2 6BF
130 132, Flat 7, Heathfield Road
BR2 6BF
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rolinsden Way — bus stop.
Closest school
0.5 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
48.0dB

Night-time· 23:00 – 07:00
41.3dB