12 Harman Close, Avondale Square, Southwark, London, SE1 5PB
About 12 Harman Close
12 Harman Close is a property in Southwark, London, London (SE1 5PB). It has a recorded floor area of 30 m² (around 323 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (July 2026) shows an E (score 48), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2011); the latest reading is one band lower. Between certificates, window efficiency dropped from Average to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 30 m² this is the 11th smallest of 43 units on EPC record in the building, where floor areas span 27–54 m². The building's EPC ratings span F to C across 43 units on file.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about 12 Harman Close
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
12 Harman Close sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Certificate validity
Valid until 1 July 2036
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
12 Harman Close has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12 Harman Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£183,000
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.
Versus other Harman Close homes
EPC Rating for 12 Harman Close lags the street by a wide margin.
EPC Rating
48 (E)
Street avg 66 (D)
Floor Area
30 m²
Street avg 33 m²
CO₂ Emissions
0.7 t/year
Street avg 1.7 t/year
Habitable Rooms
1 rooms
Street avg 1 rooms
Everything you need to know about 12 Harman Close
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
1516/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Malt Street — bus stop.
Closest school
0.1 km
Phoenix Primary School. 95 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
56.9dB
Night-time· 23:00 – 07:00
46.9dB