21b, Dagmar Road, Southwark, London, SE5 8NZ
About 21b
21b is a mid-terrace house in Southwark, London, London (SE5 8NZ). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band B. At 40 m² this is the 14th smallest of 73 units on EPC record in the building, where floor areas span 30–191 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (December 2025) shows a C (score 69), just inside the C band. When first surveyed in October 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Very Poor to Poor; while lighting dropped from Average to Very Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
At 40 m² it's 27.9% smaller than the typical home in the postcode (56 m² median across 82 EPCs).
Know exactly what you're buying at 21b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
21b's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Heating controls changed
Single glazing replaced with double or better glazing
Wall insulation improved
Low energy lighting percentage decreased
Planning history
21b has no planning applications on record.
Notable planning nearby
13applications of note in the surrounding area
We flagged 2 things worth checking at 21b
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
21b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£312,000
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 SE5 8NZ: £550,000 (2025–2025).
Nearby sales in SE5 8NZ
Basement Flat, 14 Dagmar Road, Southwark, London, SE5 8NZ
Sold Oct 2025
£635,00019a, Dagmar Road, Southwark, London, SE5 8NZ
Sold Jul 2025
£900,00024b, Dagmar Road, Southwark, London, SE5 8NZ
Sold Mar 2025
£495,000Flat A, 8 Dagmar Road, Southwark, London, SE5 8NZ
Sold Mar 2025
£550,000Ground Floor Flat, 12 Dagmar Road, London, SE5 8NZ
Sold Jan 2025
£320,000
Everything we know about 21b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Dagmar Road homes
21b outperforms the street on co₂ emissions by a wide margin.
EPC Rating
69 (C)
Street avg 68 (D)
Floor Area
40 m²
Street avg 60 m²
CO₂ Emissions
1.4 t/year
Street avg 2.3 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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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
0.2 km
Vestry Road — bus stop.
Closest school
0.3 km
Lyndhurst Primary School. 95 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
54.0dB
Night-time· 23:00 – 07:00
44.0dB