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Get started12 Cornell Close is a four-bedroom end-of-terrace house in Sidcup (DA14 5LY). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (January 2024) shows a C (score 73). When first surveyed in October 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Records show the property has been extended at some point in its history.
Today's modelled estimate of £538,000 sits 85.5% above the 2015 sale of £290,000. At 113 m² it's 19.6% larger than the typical home in the postcode (95 m² median across 8 EPCs). 11 years since the last transfer (August 2015). 2 planning records sit against the property, 0 approved, 2 refused.
12 Cornell Close has 2 separate extension applications on the council record.
Part one/part two storey front/side and rear extension including front canopy
12 Cornell Close valuation sits well clear of the typical sold price in this postcode.
£538,000
Modelled from EPC, postcode comparables.
£290,000
Recorded with HM Land Registry.
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EPC Rating for 12 Cornell Close runs comfortably ahead of the street norm.
Price per m²
£2,566
Street avg £3,374
Floor Area
113 m²
Street avg 99 m²
Habitable Rooms
5 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Ellenborough Road — bus stop.

Daytime· 07:00 – 23:00
52.0dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Wall insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Extension: Side and rear of property
Part one/part two storey side/rear and front extension incorporating canopy.
21 August 2015Most recent
£290,000
Median price across the last 5 sales in DA14 5LY: £380,000 (2025–2013).
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Energy costs, comparable sales, crime, schools and transport

Street avg 5 rooms
CO₂ Emissions
3.2 t/year
Street avg 4.0 t/year
DA14 5JW
Closest school
1.0 km
Hope Community School. 15 schools nearby.
Night-time· 23:00 – 07:00
44.5dB