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Get startedFlat 4 is a one-bedroom semi-detached house in Sidcup (DA14 4AA). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 2007-2011 and council tax band B. The latest certificate (May 2021) shows a C (score 76), near the top of the C band. When first surveyed in August 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good and roof efficiency went from Very Poor to Good; while window efficiency dropped from Good to Average and lighting dropped from Good to Very Poor. Period features are noted in the property record.
Sale prices here have outpaced England HPI: 5.5% per year against 0% for the wider region. Today's modelled estimate of £159,000 is 27.2% above the 2021 sale price. At 46 m² it sits well below the postcode median (95 m² across 8 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). Last sale on file: £125,000 in November 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Flat 4's carbon output is low for the local stock.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£159,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 10 years.
£125,000
Growth on file: 5.5% per year over 10 years.
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Floor Area for Flat 4 lags the street by a wide margin.
Price per m²
£2,717
Street avg £2,934
Floor Area
46 m²
Street avg 68 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Granville Road — bus stop.

Daytime· 07:00 – 23:00
53.0dB

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Changes detected from historical EPC data
External or internal wall insulation added
Loft insulation installed or upgraded to 250mm+
Low energy lighting percentage decreased
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8 November 2021Most recent
£125,000
+66.7%over 9 years27 April 2012
£75,000
Median price across the last 5 sales in DA14 4AA: £380,000 (2023–2006).
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Energy costs, comparable sales, crime, schools and transport

CO₂ Emissions
1.3 t/year
Street avg 2.8 t/year
DA14 4HB
Closest school
0.6 km
Birkbeck Primary School. 31 schools nearby.
Night-time· 23:00 – 07:00
43.8dB