16a, Flat 1, Winchester Walk, Southwark, London, SE1 9AG
About 16a
16a is an end-of-terrace house in Southwark, London, London (SE1 9AG). It has a recorded floor area of 90 m² (around 969 sq ft) and construction records dating it to 2012 onwards. At 90 m² this is the smallest unit on EPC record across 16a (90–146 m²). The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (69 versus a best of 83). The latest certificate (January 2026) shows a C (score 69), just inside the C band. The rating has held steady at C across 3 certificates since May 2017. Between certificates, wall efficiency went from Very Poor to Good; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Good.
At 90 m² it sits well below the postcode median (132 m² across 5 EPCs), making it one of the more compact homes locally.
Everything you need to know about 16a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Certificate validity
Valid until 19 January 2036
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls changed
Hot water system upgraded
Wall insulation improved
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Wall insulation improved
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 £1,645 · Includes VAT
Planning history
16a 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
16a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,002,000
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 Winchester Walk homes
On co₂ emissions, 16a runs well behind the street norm.
EPC Rating
69 (C)
Street avg 78 (C)
Floor Area
90 m²
Street avg 123 m²
CO₂ Emissions
3.0 t/year
Street avg 2.5 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about 16a
The true value, the hidden risks and the full sale history, in one report.
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One time fee only - money back guarantee
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
1516/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Hop Exchange — bus stop.
Closest school
0.4 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
62.6dB
Night-time· 23:00 – 07:00
55.8dB