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Get started3 Birchwood Avenue is a three-bedroom detached house in Sidcup (DA14 4JY). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2021) shows an F (score 25), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 86), a 4-band jump. Main heating runs on electricity. Other recorded features include outbuildings.
At 97 m² it sits well below the postcode median (148 m² across 7 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). One planning record on file: an extension approved in 2004. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£608/sq ft) was about 34.2% above the typical sold price in the postcode. Sold May 2022 for £635,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
3 Birchwood Avenue's carbon output runs well above what efficient homes in the postcode produce.
3 Birchwood Avenue has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
First floor rear extension.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£694,000
Modelled from EPC, postcode comparables.
£635,000
Recorded with HM Land Registry.
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Price per m² for 3 Birchwood Avenue runs comfortably ahead of the street norm.
Price per m²
£6,546
Street avg £4,948
Floor Area
97 m²
Street avg 163 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Birchwood Avenue (DA14) — bus stop.

Daytime· 07:00 – 23:00
50.9dB

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4 May 2022Most recent
£635,000
Median price across the last 5 sales in DA14 4JY: £800,000 (2024–2017).
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Energy costs, comparable sales, crime, schools and transport

Street avg 7 rooms
CO₂ Emissions
12.0 t/year
Street avg 9.5 t/year
DA14 4PS
Closest school
0.4 km
Birkbeck Primary School. 29 schools nearby.
Night-time· 23:00 – 07:00
40.4dB