Flat 3, 21 Lower Marsh, London, SE1 7RJ
About Flat 3
Flat 3 is an end-of-terrace house in London (SE1 7RJ). It has a recorded floor area of 78 m² (around 840 sq ft) and construction records dating it to 1900-1929. At 78 m² this is the largest unit on EPC record across the building (52–78 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (February 2016) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 72). Main heating runs on electricity. The latest certificate is from February 2016, so improvements made since then won't be reflected.
At 78 m² the property is well over the postcode median (52 m² across 16 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 22 Feb 2026
EPC Rating
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 £1,155 · Includes VAT
Planning history
Flat 3 has no planning applications on record.
But the area is active
6 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 3 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£609,000
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 SE1 7RJ: £420,000 (2025–2012).
Nearby sales in SE1 7RJ
Flat 3, 13 Lower Marsh, London, SE1 7RJ
Sold Mar 2025
£420,000Flat 2, 13 Lower Marsh, London, SE1 7RJ
Sold Nov 2021
£399,99913 Lower Marsh, Lambeth, London, SE1 7RJ
Sold Mar 2021
£900,00011 12, Flat 2, Lower Marsh, London, SE1 7RJ
Sold Sept 2011
£300,00021 Lower Marsh, Lambeth, London, SE1 7RJ
Sold Sept 2007
£495,000
Versus other Lower Marsh homes
CO₂ Emissions for Flat 3 lags the street by a wide margin.
EPC Rating
59 (D)
Street avg 69 (D)
Floor Area
78 m²
Street avg 59 m²
CO₂ Emissions
3.6 t/year
Street avg 2.0 t/year
Habitable Rooms
4 rooms
Street avg 2 rooms
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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
Lower Marsh — bus stop.
Closest school
0.1 km
Oasis Academy South Bank Primary. 79 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
63.7dB

Night-time· 23:00 – 07:00
57.0dB







