21a, Austral Street, London, SE11 4SJ
About 21a
21a is a mid-terrace house in London (SE11 4SJ). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1900-1929 and council tax band C. At 47 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 44–84 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (August 2017) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).
At 47 m² it sits well below the postcode median (68 m² across 21 EPCs), making it one of the more compact homes locally. One planning record on file: new windows approved in 2013. Past consents include new windows, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
- Oct 2013RenovationFullIn report
Replacement of all existing rear and front single glazed timber windows with double glazed sliding sash windows and existing timber rear door to a new timber door
- Agent
- M A Newsome & Co
New Windows- Documents
- 14 docs on file
- Reference
- 13/AP/2638
We flagged 1 thing worth checking at 21a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£426,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
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.
Median price across the last 5 sales in SE11 4SJ: £500,000 (2025–2018).
Nearby sales in SE11 4SJ
Ground Floor Flat, 1 Austral Street, London, SE11 4SJ
Sold Aug 2025
£500,000Flat A, 11 Austral Street, Southwark, London, SE11 4SJ
Sold Dec 2023
£33,200Flat A, 13 Austral Street, Southwark, London, SE11 4SJ
Sold Oct 2022
£550,00015a, Austral Street, London, SE11 4SJ
Sold Jun 2021
£547,500Flat C, 13 Austral Street, Southwark, London, SE11 4SJ
Sold Sept 2018
£672,500
Everything we know about 21a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Austral Street homes
CO₂ Emissions for 21a runs comfortably ahead of the street norm.
EPC Rating
67 (D)
Street avg 65 (D)
Floor Area
47 m²
Street avg 61 m²
CO₂ Emissions
2.0 t/year
Street avg 2.7 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
St Georges Rd/Imperial War Mus — bus stop.
Closest school
0.3 km
St Jude's Church of England Primary School. 88 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
61.3dB

Night-time· 23:00 – 07:00
53.7dB