21a is a mid-terrace house in Lambeth, London, London (SW8 1BH). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to 1900-1929. At 48 m² this is the 4th smallest of 19 units on EPC record in the building, where floor areas span 34–223 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (April 2025) shows a C (score 74). When first surveyed in September 2012 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Very Good.
At 48 m² it sits well below the postcode median (95 m² across 24 EPCs), making it one of the more compact homes locally.
21a's carbon output is low for the local stock.
No planning applications are recorded against 21a, Aldebert Terrace, Lambeth, London, SW8 1BH. The full report also covers planning activity across the surrounding area.
Full planning data for 21a, Aldebert Terrace, Lambeth, London, SW8 1BH
Every application and decision on this property and nearby, in full, in the report.
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£458,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
CO₂ Emissions for 21a runs comfortably ahead of the street norm.
EPC Rating
74 (C)
Street avg 70 (C)
Floor Area
48 m²
Street avg 74 m²
CO₂ Emissions
1.5 t/year
Street avg 2.4 t/year
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Thorne Road — bus stop.

Daytime· 07:00 – 23:00
55.8dB

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Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Median price across the last 5 sales in SW8 1BH: £1,708,500 (2024–2020).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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Habitable Rooms
2 rooms
Street avg 3 rooms
Closest school
0.3 km
St Stephen's Church of England Primary School. 98 schools nearby.
Night-time· 23:00 – 07:00
45.8dB