11a, Sandy Ridge, Chislehurst, BR7 5DP
About 11a
11a is a two-bedroom semi-detached house in Chislehurst (BR7 5DP). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (April 2021) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 86), a 3-band jump. Our model identifies extension potential, subject to local planning policy.
5 planning records sit against the property, 3 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£850/sq ft) was about 112.5% above the typical sold price in the postcode. At 80 m² it's 27.9% smaller than the typical home in the postcode (111 m² median across 13 EPCs). 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count. Most recent transfer: August 2021 at £732,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 11a
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
- Bedrooms2
- Bathrooms1
- Dining roomYes
- CloakroomYes
- StudyYes
Outside
- Private gardenYes
- GarageDouble, Detached
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
A recent planning application at 11a was refused — worth checking the council file.
- Nov 2025ExtensionFullIn report
Extension: Single storey
First floor side extension, single storey rear extension and new rendering.
- Documents
- 20 docs on file
- Reference
- 25/03959/HPA
- Aug 2025AmendmentIn report
Non-material amendment application under S96a of the Town and Country Planning Act to planning permission reference 23/00164/FULL6 - the approved planning application drawings differ between the proposed plans and elevations. The proposed elevations show a line on the front and rear elevations indicating a tile verge. The plans show flush walls. Propose to omit any tile verge so that the approved plans can be implemented.
- Documents
- 8 docs on file
- Reference
- 23/00164/AMD
We flagged 1 thing worth checking at 11a
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£757,000
Modelled from EPC, postcode comparables.
£732,000
Recorded with HM Land Registry.
Sales timeline
4 August 2021Most recent
£732,000
Median price across the last 5 sales in BR7 5DP: £745,000 (2025–2020).
Nearby sales in BR7 5DP
Everything we know about 11a, 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 Sandy Ridge homes
On price per m², 11a stands well clear of the street.
Price per m²
£9,150
Street avg £5,757
Floor Area
80 m²
Street avg 122 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.8 t/year
Street avg 6.0 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
0.6 km
Ingleby Way — bus stop.
Closest school
0.6 km
Red Hill Primary School. 24 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
46.9dB
Night-time· 23:00 – 07:00
37.6dB