23 Copthorne Avenue, Bromley, BR2 8NW
About 23 Copthorne Avenue
23 Copthorne Avenue is a three-bedroom semi-detached house in Bromley (BR2 8NW). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (February 2019) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in February 2014 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Poor to Average and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 90), a 2-band jump. Other recorded features include a conservatory. The home occupies a cul-de-sac position.
Across 2014–2019, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £555,000 is 30.3% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£514/sq ft) was about 63.3% above the typical sold price in the postcode. Most recent transfer: August 2019 at £426,000. One historical planning record sits against the property in 2021.
Know exactly what you're buying at 23 Copthorne Avenue
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
- Bedrooms3
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenYes
- ParkingAllocated
- Cul-de-sacYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Roof insulation improved
More low energy lighting installed
Planning history
- May 2021Loft ConversionOutlineIn report
Loft conversion incorporating hip to gable extension, rear dormer and front rooflights LAWFUL DEVELOPMENT CERTIFICATE (PROPOSED)
- Documents
- 13 docs on file
- Reference
- 21/00943/PLUD
We flagged 2 things worth checking at 23 Copthorne Avenue
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
23 Copthorne Avenue valuation sits well clear of the typical sold price in this postcode.
£555,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 5 years.
£426,000
Growth on file: 5.8% per year over 5 years.
Sales timeline
15 August 2019Most recent
£426,000
+35.2%over 5 years3 April 2014
£315,000
Median price across the last 5 sales in BR2 8NW: £516,500 (2022–2016).
Nearby sales in BR2 8NW
Everything we know about 23 Copthorne Avenue, 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 Copthorne Avenue homes
CO₂ Emissions for 23 Copthorne Avenue runs comfortably ahead of the street norm.
Price per m²
£5,532
Street avg £4,198
Floor Area
77 m²
Street avg 98 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.5 t/year
Similar properties nearby
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
0.3 km
Lakeside Drive Keston Mark — bus stop.
Closest school
0.8 km
Trinity Church of England Primary School. 20 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
49.5dB

Night-time· 23:00 – 07:00
41.8dB