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12 Avondale Road, Bromley, London, SE9 4SN

3 planning records
Property type
Semi-detached
Habitable rooms
6
From EPC
Floor area
113 m²
1216 sq ft
Energy rating
D
Score 61
Council tax
Band E
Tenure
Owner Occupied
Overview

About 12 Avondale Road

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

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).

A recent sale: £625,000 in February 2025. 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 91.4% above the typical sold price in the postcode.

Before you decide

Everything you need to know about 12 Avondale Road

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby
£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
  • Beautiful Places, source of nearby scenic places
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Oct 2024

EPC Rating

A
B
C
D
D61
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.8 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Oct 2024from Nov 2019
EPC improved fromE50toD61
Walls
Very PoorPoor

Wall insulation improved

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
50%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 12 Avondale Road, Bromley, London, SE9 4SN, sourced from the PlanIt planning register.

Planning history includes recorded demolition works, indicating a major rebuild phase at this address.

  1. Sept 2025
    PorchFull
    In report

    Extension: Single storey · Rear of property

    Front porch extension, demolition of existing conservatory and construction of a single storey rear extension with raised patio to rear, and removal of tree

    ExtensionDemolition
    Documents
    7 docs on file
    Reference
    25/03443/HPA
    View planning record
  2. Sept 2025
    Loft ConversionOutline
    In report

    Hip to gable loft conversion with rear dormer (Lawful Development Certificate Proposed).

    Documents
    5 docs on file
    Reference
    25/03444/LDC
    View planning record
Before you offer

We flagged 2 things worth checking at 12 Avondale Road

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.

  • Signs of HMO activity in the area
  • Larger development activity nearby
£14.99

30-day money-back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

12 Avondale Road valuation sits well clear of the typical sold price in this postcode.

Current estimate

£665,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.4% per year over 5 years.

See how we calculated this
Last sold (2025)

£625,000

Growth on file: 3.4% per year over 5 years.

Sales timeline

  1. 7 February 2025Most recent

    £625,000

    +16.8%over 4 years

  2. 7 June 2020

    £535,000

Median price across the last 5 sales in SE9 4SN: £660,000 (2025–2021).

On the street

Versus other Avondale Road homes

Four headline reads against 20 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 12 Avondale Road lags the street by a wide margin.

Price per m²

£5,531

Street avg £3,783

Strongly above

Floor Area

113 m²

Street avg 124 m²

Below

Habitable Rooms

6 rooms

Street avg 6 rooms

On par

CO₂ Emissions

4.8 t/year

Street avg 5.7 t/year

Above
Before you decide

Everything you need to know about 12 Avondale Road

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby
£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
  • Beautiful Places, source of nearby scenic places
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£673k

1 Beaconsfield Road, Bromley

SE9 4DJ

4 bed3 bath
£718k

1 Elmhurst Road, Bromley

SE9 4DW

5 bed2 bath
£840k

1 Avondale Road, Bromley

SE9 4SN

4 bed2 bath
£523k

1 Clayhill Crescent, Lewisham

SE9 4JA

1 bed
£489k

1 Dunkery Road, Lewisham

SE9 4HX

£465k

1 Ballantyne Close, Bromley

SE9 4EH

£430k

1 Blanchard Close, Bromley

SE9 4TZ

3 bed1 bath
£407k

1 Duddington Close, Bromley

SE9 4JD

2 bed1 bath
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
Full London report

Rail-style transport is unusually close for this postcode.

Crime

6/mo

Rising 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

The full report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around SE9 4SN from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SE9 4SN

Daytime· 07:00 – 23:00

51.6dB

Low
Night-time road noise heatmap for SE9 4SN

Night-time· 23:00 – 07:00

41.8dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12 Avondale Road, Bromley, London, SE9 4SN. Each answer is also embedded as structured data for search engines.