21a, Elm Road, Beckenham, BR3 4JB
About 21a
21a is a one-bedroom semi-detached house in Beckenham (BR3 4JB). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1900-1929 and council tax band B. At 35 m² this is the 2nd smallest of 24 units on EPC record in the building, where floor areas span 34–363 m². The building's EPC ratings span F to C across 24 units on file. The latest certificate (October 2022) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
Across 1997–2014, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £268,000 sits 83.6% above the 2014 sale of £146,000. At 35 m² it sits well below the postcode median (136 m² across 23 EPCs), making it one of the more compact homes locally. Last sold in July 2014, so it's been off the market for around 12 years.
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.
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
- Private gardenRear
Building
- RefurbishedYes
Energy performance
EPC Rating
Planning history
21a has no planning applications on record.
Notable planning nearby
10applications of note in the surrounding area
We flagged 2 things worth checking at 21a
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
21a has more than tripled in price since its earliest registered sale in 1997.
£268,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 17 years.
£146,000
Growth on file: 7.4% per year over 17 years.
Sales timeline
28 July 2014Most recent
£146,000
+12.7%over 10 years4 August 2003
£129,500
+197.7%over 5 years18 September 1997
£43,500
Median price across the last 5 sales in BR3 4JB: £1,270,000 (2024–2020).
Nearby sales in BR3 4JB
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.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Elm Road homes
On floor area, 21a runs well behind the street norm.
Price per m²
£4,171
Street avg £5,517
Floor Area
35 m²
Street avg 68 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.7 t/year
Street avg 3.3 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Hayne Road Beckenham — bus stop.
Closest school
0.3 km
Balgowan Primary School. 46 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
53.0dB
Night-time· 23:00 – 07:00
43.1dB