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Get started129 Birkbeck Road is a two-bedroom end-of-terrace house in Sidcup (DA14 4DJ). It has a recorded floor area of 65 m² (around 700 sq ft) and construction records dating it to 2007-2011. The latest certificate (October 2023) shows a C (score 80), near the top of the C band. Earlier certificates rated it B (October 2013); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 82). Our model identifies extension potential, subject to local planning policy.
Sale prices here have outpaced England HPI: 4% per year against 0.1% for the wider region. On a £-per-square-foot basis, the last sale (£629/sq ft) was about 159.8% above the typical sold price in the postcode. Most recent transfer was September 2025 at £440,000 — fresh data. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). 2 planning records sit against the property, 0 approved, 2 refused.
129 Birkbeck Road's carbon output is low for the local stock.
Council records show a subdivision application — the property's legal arrangement has been altered.
Extension: Single storey · Rear of property
129 Birkbeck Road valuation sits well clear of the typical sold price in this postcode.
£441,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 11 years.
£440,000
Growth on file: 4.0% per year over 11 years.
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Price per m² for 129 Birkbeck Road runs comfortably ahead of the street norm.
Price per m²
£6,769
Street avg £4,616
Floor Area
65 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Station Road / Crescent Road — bus stop.

Daytime· 07:00 – 23:00
52.6dB

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Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
Floor insulation added or improved
Solar PV panels (17 kWp) installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Erection of a replacement end of terraced 2 bedroom dwelling together with a single storey rear extension the existing property No. 127. Alterations and conversion to the existing workshop and store building at the rear to provide 2 x one bedroom flats. Provision of 3 car parking spaces.
Demolition of 129 Birkbeck Road and warehouse to the rear and re-development of site to provide one end-of terraced 2 bedroom dwelling, and alterations to the existing building with a three storey extension attached to provide 2 x 1 bedroom dwellings. Provision of associated parking spaces and new access.
5 September 2025Most recent
£440,000
+57.1%over 11 years27 March 2014
£280,000
Median price across the last 5 sales in DA14 4DJ: £460,000 (2025–2024).
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Every planning application and decision on record
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Energy costs, comparable sales, crime, schools and transport

Street avg 4 rooms
CO₂ Emissions
1.4 t/year
Street avg 4.0 t/year
DA14 4BA
Closest school
0.2 km
Birkbeck Primary School. 30 schools nearby.
Night-time· 23:00 – 07:00
42.9dB