15 Sylvester Avenue, Chislehurst, BR7 5ED
About 15 Sylvester Avenue
15 Sylvester Avenue is a detached house in Chislehurst (BR7 5ED). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (October 2024) shows an E (score 46), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 66).
One planning record on file: an extension approved in 2026. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. At 117 m² it's 21.5% smaller than the typical home in the postcode (149 m² median across 9 EPCs).
Know exactly what you're buying at 15 Sylvester 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
Energy performance
15 Sylvester Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Apr 2026DemolitionFullIn report
Extension: Part single, part two storey · Rear of property
Demolition of rear conservatory, part demolition of garage, construction of part one/two storey rear extension, and a roof extension involving a rear roof dormer and installation of rooflights to the side roof slope and elevational alterations.
Extension- Documents
- 17 docs on file
- Reference
- 26/00627/HPA
We flagged 1 thing worth checking at 15 Sylvester 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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
15 Sylvester Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£966,000
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 BR7 5ED: £925,000 (2025–2021).
Nearby sales in BR7 5ED
10 Sylvester Avenue, Chislehurst, BR7 5ED
Sold Aug 2025
£920,0005 Sylvester Avenue, Chislehurst, BR7 5ED
Sold May 2025
£975,00011 Sylvester Avenue, Chislehurst, BR7 5ED
Sold May 2024
£1,570,0003 Sylvester Avenue, Chislehurst, BR7 5ED
Sold Apr 2024
£925,0004 Sylvester Avenue, Chislehurst, BR7 5ED
Sold Mar 2021
£820,000
Everything we know about 15 Sylvester 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
- Larger development activity nearby
Versus other Sylvester Avenue homes
15 Sylvester Avenue is notably below the street on floor area.
EPC Rating
46 (E)
Street avg 55 (D)
Floor Area
117 m²
Street avg 177 m²
CO₂ Emissions
7.3 t/year
Street avg 8.3 t/year
Habitable Rooms
7 rooms
Street avg 7 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Elmstead Woods — bus stop.
Closest school
0.8 km
Bullers Wood School. 28 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
48.9dB
Night-time· 23:00 – 07:00
38.1dB