19 Sylvester Avenue, Chislehurst, BR7 5ED
About 19 Sylvester Avenue
19 Sylvester Avenue is a detached house in Chislehurst (BR7 5ED). It has a recorded floor area of 234 m² (around 2519 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (March 2014) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 68). The latest certificate is from March 2014, so improvements made since then won't be reflected.
At 234 m² the property is well over the postcode median (137 m² across 9 EPCs), placing it in the larger end of the local stock. Across 2007–2015, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £1,311,000 sits 53.2% above the 2015 sale of £855,750. On a £-per-square-foot basis, the last sale (£340/sq ft) was about 32.7% below the postcode norm. 4 planning records sit against the property, 3 approved, 0 refused. Past consents include tree works and an extension, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in January 2015.
Know exactly what you're buying at 19 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
19 Sylvester Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 10 Mar 2024
EPC Rating
Planning history
19 Sylvester Avenue has an approved side and rear extension on the planning record.
- Nov 2025Tree WorksTreesIn report
T1 Cedar in rear middle garden - Reduce height by up to 2m from 20m leaving the crown height no less than 18m. Reduce north-east crown spread by up to 1m from 9m leaving a residual north-east crown spread of no less than 8m. Reduce south-east crown by careful and selective 'drop crotch' pruning techniques with the aim of retaining the overall crown dimensions but pruning in (by up to approx. 2m) longer, heavier branch tips to lighten outer tips of crown. Remove all dead wood over 25mm. T2 Copper beech on rear right boundary (neighbours) - Reduce clients side by no more than 2m. T3 Leyland Cypress on rear right boundary - Reduce back to boundary. T5 Yew on rear left boundary - Reduce back to boundary. T6 Ash on rear left boundary - Reduce back to boundary up to a height of 6m. T7 Red robin on rear left boundary - Reduce height and average radial spread of tree by approximately 2m and 2m respectively, taking care to prune to live secondary growth points. T8 Ash on rear left boundary - Reduce away from Cedar to give clearance of up to 0.5m. V1 Vegetation on rear boundary - Cut all vegetation to 3m from rear boundary. T4 Sycamore on rear boundary - Reduce height and average radial spread of tree by approximately 3m and 2m respectively, taking care to prune to live secondary growth points. SUBJECT TO TPO BB 3 1958
- Documents
- 5 docs on file
- Reference
- 25/03723/TPO
- Dec 2018ExtensionFullIn report
Extension: Rear of property
Alterations to front first floor dormer, ground and first floor rear extensions, increase in roof depth and alteration to materials and patio
- Agent
- Design United
- Documents
- 11 docs on file
- Reference
- 18/04486/FULL6
We flagged 1 thing worth checking at 19 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
19 Sylvester Avenue valuation sits well clear of the typical sold price in this postcode.
£1,311,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 8 years.
£855,750
Growth on file: 4.7% per year over 8 years.
Sales timeline
16 January 2015Most recent
£855,750
+43.8%over 7 years26 January 2007
£595,000
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 19 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
On floor area, 19 Sylvester Avenue stands well clear of the street.
Price per m²
£3,657
Street avg £6,186
Floor Area
234 m²
Street avg 164 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
11.0 t/year
Street avg 7.9 t/year
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