21 Crown Lane, Chislehurst, BR7 5PL
About 21 Crown Lane
21 Crown Lane is a four-bedroom detached house in Chislehurst (BR7 5PL). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (June 2021) shows a C (score 72). When first surveyed in July 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 81).
At 145 m² it's 24.4% larger than the typical home in the postcode (117 m² median across 22 EPCs). Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). Across 2013–2022, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £1,166,000 is 14.9% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£650/sq ft) was about 61.5% above the typical sold price in the postcode. Most recent transfer: March 2022 at £1,015,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2020.
Know exactly what you're buying at 21 Crown Lane
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
- Bedrooms4
- Bathrooms2
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation upgraded
More low energy lighting installed
Planning history
- Sept 2020OutlineIn report
Demolish front dividing wall LAWFUL DEVELOPMENT CERTIFICATE (proposed)
- Documents
- 13 docs on file
- Reference
- 20/02616/PLUD
We flagged 1 thing worth checking at 21 Crown Lane
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.
- Larger development activity nearby
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,166,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.1% per year over 8 years.
£1,015,000
Growth on file: 5.1% per year over 8 years.
Sales timeline
10 March 2022Most recent
£1,015,000
+52.1%over 8 years14 October 2013
£667,500
Median price across the last 5 sales in BR7 5PL: £610,000 (2024–2022).
Nearby sales in BR7 5PL
Everything we know about 21 Crown Lane, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Crown Lane homes
On epc rating, 21 Crown Lane stands well clear of the street.
Price per m²
£7,000
Street avg £5,627
Floor Area
145 m²
Street avg 133 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
4.1 t/year
Street avg 6.4 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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Chislehurst Common — bus stop.
Closest school
0.1 km
Orion Coopers. 25 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
50.0dB

Night-time· 23:00 – 07:00
42.7dB