Flat 1, 12 Marshalsea Road, Southwark, London, SE1 1HL
About Flat 1
Flat 1 is a mid-terrace house in Southwark, London, London (SE1 1HL). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1900-1929 and council tax band F. At 60 m² this is the smallest unit on EPC record across the building (60–98 m²). The latest certificate (February 2025) shows a C (score 70). The rating has held steady at C across 2 certificates since August 2014. Between certificates, lighting went from Average to Very Good and main heating went from Poor to Average; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. Main heating runs on electricity.
At 60 m² it's 25% smaller than the typical home in the postcode (80 m² median across 17 EPCs).
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Hot water system upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
Flat 1 has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£586,000
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 SE1 1HL: £350,000 (2004–2004).
Nearby sales in SE1 1HL
Versus other Marshalsea Road homes
Flat 1 is notably below the street on floor area.
EPC Rating
70 (C)
Street avg 76 (C)
Floor Area
60 m²
Street avg 82 m²
CO₂ Emissions
3.9 t/year
Street avg 2.6 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Everything you need to know about Flat 1
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
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
44/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Borough Station — bus stop.
Closest school
0.1 km
The Cathedral School of St Saviour and St Mary Overie. 100 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
62.0dB
Night-time· 23:00 – 07:00
54.2dB