12a, Bute Street, Kensington And Chelsea, London, SW7 3EX
About 12a
12a is an end-of-terrace house in Kensington And Chelsea, London, London (SW7 3EX). It has a recorded floor area of 62 m² (around 667 sq ft) and construction records dating it to 1900-1929. At 62 m² this is the smallest unit on EPC record across the building (62–130 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (October 2025) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since November 2009. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Average to Good and lighting went from Very Poor to Good. The recommended improvements would push it to C (score 74).
At 62 m² it sits well below the postcode median (130 m² across 7 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs).
Know exactly what you're buying at 12a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation improved
More low energy lighting installed
Planning history
12a has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 12a
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
12a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£849,000
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 4 sales in SW7 3EX: £395,000 (2004–1996).
Nearby sales in SW7 3EX
26a, Bute Street, Kensington And Chelsea, London, SW7 3EX
Sold Dec 2004
£500,00014a, Bute Street, Kensington And Chelsea, London, SW7 3EX
Sold Nov 2001
£600,00018a, Bute Street, Kensington And Chelsea, London, SW7 3EX
Sold May 1996
£260,00028a, Bute Street, Kensington And Chelsea, London, SW7 3EX
Sold Mar 1996
£290,000
Everything we know about 12a, 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 Bute Street homes
On epc rating, 12a stands well clear of the street.
EPC Rating
67 (D)
Street avg 51 (E)
Floor Area
62 m²
Street avg 73 m²
CO₂ Emissions
2.3 t/year
Street avg 4.5 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Queensberry Place — bus stop.
Closest school
0.2 km
Our Lady of Victories RC Primary School. 59 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
58.8dB

Night-time· 23:00 – 07:00
48.5dB