12 Avondale Road, Bromley, London, SE9 4SN
About 12 Avondale Road
12 Avondale Road is a semi-detached house in Bromley, London, London (SE9 4SN). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (October 2024) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in November 2019 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and lighting went from Good to Very Good. The recommended improvements would push it to C (score 77).
3 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, a porch and partial demolition, meaningful when judging how the property has evolved. Across 2020–2025, sale prices on this property compounded at 3.4% per year. On a £-per-square-foot basis, the last sale (£514/sq ft) was about 91.2% above the typical sold price in the postcode. Sold February 2025 for £625,000.
Everything you need to know about 12 Avondale Road
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Certificate validity
Valid until 10 October 2034
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
3 applications on record at 12 Avondale Road, Bromley, London, SE9 4SN
- Oct 2002OutlineOutcome in report
Rear dormer extension CERTIFICATE OF LAWFULNESS FOR A PROPOSED DEVELOPMENT
- Reference
- 02/02384/PLUD
- More recent applications — locked
- PorchSept 2025Decision
- Loft ConversionSept 2025Decision
Unlock 12 Avondale Road, Bromley, London, SE9 4SN's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 15 notable nearby
- The 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Avondale Road valuation sits well clear of the typical sold price in this postcode.
£644,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.4% per year over 5 years.
£625,000
Growth on file: 3.4% per year over 5 years.
Sales timeline
7 February 2025Most recent
£625,000
+16.8%over 4 years7 June 2020
£535,000
Median price across the last 5 sales in SE9 4SN: £660,000 (2025–2024).
Nearby sales in SE9 4SN
1 Avondale Road, Bromley, London, SE9 4SN
Sold Dec 2025
£837,50020 Avondale Road, Bromley, London, SE9 4SN
Sold Feb 2025
£542,0009 Avondale Road, Bromley, London, SE9 4SN
Sold Oct 2024
£500,00035 Avondale Road, Bromley, London, SE9 4SN
Sold Aug 2024
£710,00024 Avondale Road, Bromley, London, SE9 4SN
Sold Feb 2024
£660,000
Versus other Avondale Road homes
Years Held for 12 Avondale Road lags the street by a wide margin.
Price per m²
£5,531
Street avg £3,814
Floor Area
113 m²
Street avg 124 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.8 t/year
Street avg 5.7 t/year
Everything you need to know about 12 Avondale Road
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
428/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Mottingham / Prince Of Wales — bus stop.
Closest school
0.6 km
St Vincent's Catholic Primary School. 35 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.6dB

Night-time· 23:00 – 07:00
41.8dB






