12a, Trinity Street, London, SE1 1DB
About 12a
12a is an end-of-terrace house in London (SE1 1DB). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (October 2024) shows a D (score 56), a step below the typical UK home. When first surveyed in July 2016 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor and main heating went from Very Poor to Average. Main heating runs on electricity.
Held since February 2000 — that's 26 years off the open market, well above the local norm. Across 1999–2000, sale prices on this property compounded at 29.7% per year. Today's modelled estimate of £475,000 sits 97.9% above the 2000 sale of £240,000. On a £-per-square-foot basis, the last sale (£858/sq ft) was about 56.7% above the typical sold price in the postcode. At 26 m² it's 23.3% smaller than the typical home in the postcode (34 m² median across 19 EPCs).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls upgraded for better temperature management
Wall insulation improved
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 £1,020 · Includes VAT
Planning history
12a 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
12a changed hands twice within eighteen months — unusual for the area.
£475,000
Modelled from EPC, postcode comparables and a sale-price growth of 29.7% per year over 1 year.
£240,000
Growth on file: 29.7% per year over 1 year.
Sales timeline
21 February 2000Most recent
£240,000
+29.7%29 November 1999
£185,000
Median price across the last 5 sales in SE1 1DB: £335,000 (2020–2016).
Nearby sales in SE1 1DB
Flat A, 6 Trinity Street, London, SE1 1DB
Sold Oct 2020
£200,00010 Trinity Street, Southwark, London, SE1 1DB
Sold Jan 2019
£1,600,0008a, Trinity Street, London, SE1 1DB
Sold Jan 2018
£335,000Flat 4, 18 Trinity Street, London, SE1 1DB
Sold Jul 2016
£650,000Flat 1, 18 Trinity Street, London, SE1 1DB
Sold Mar 2016
£700,000
Versus other Trinity Street homes
On floor area, 12a runs well behind the street norm.
Price per m²
£9,231
Street avg £7,530
Floor Area
26 m²
Street avg 46 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.9 t/year
Street avg 2.5 t/year
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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
0.2 km
Borough Station — bus stop.
Closest school
0.2 km
Charles Dickens Primary School. 97 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
61.3dB

Night-time· 23:00 – 07:00
53.1dB







