12a, Flat 3, Powis Street, London, SE18 6LF
About 12a
12a is a detached house in London (SE18 6LF). It has a recorded floor area of 83 m² (around 893 sq ft) and construction records dating it to 1967-1975. At 83 m² this is the largest unit on EPC record across 12a (47–83 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 80). The latest certificate (September 2017) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2009. Between certificates, window efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 69).
At 83 m² the property is well over the postcode median (50 m² across 10 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs).
Everything you need to know about 12a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
12a has no planning applications on record.
But the area is active
18 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£449,000
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 1 sales in SE18 6LF: £2,450,000 (2026–2026).
Nearby sales in SE18 6LF
Versus other Powis Street homes
On floor area, 12a stands well clear of the street.
EPC Rating
61 (D)
Street avg 73 (C)
Floor Area
83 m²
Street avg 54 m²
CO₂ Emissions
3.8 t/year
Street avg 1.8 t/year
Habitable Rooms
4 rooms
Street avg 2 rooms
Everything you need to know about 12a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
12a, Flat 6, Powis Street
SE18 6LF
29a, Flat 1, Hare Street, Greenwich
SE18 6NE
27a, Flat 1, Hare Street, Greenwich
SE18 6NE
29a, Flat 4, Hare Street, Greenwich
SE18 6NE
27a, Flat 2, Hare Street, Greenwich
SE18 6NE
12a, Flat 4, Powis Street
SE18 6LF
29a, Flat 3, Hare Street, Greenwich
SE18 6NE
12a, Flat 5, Powis Street
SE18 6LF
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
13/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Woolwich Arsenal DLR — tram stop.
Closest school
0.5 km
St Peter's Catholic Primary School. 39 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
56.1dB
Night-time· 23:00 – 07:00
47.0dB