Model valuation£417,0008 Busby Close
Local market context
12 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Property type
Detached
Floor top floor
Floor area
416 m²
4478 sq ft
Energy rating
C
Score 72
About 12 Blenheim House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12 Blenheim House is a detached house in Southwark, London, London (SE1 2SF). It has a recorded floor area of 416 m² (around 4478 sq ft). At 416 m² this is the 31st smallest of 32 units on EPC record in the building, where floor areas span 40–416 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (January 2017) shows a C (score 72).
At 416 m² the property is well over the postcode median (121 m² across 31 EPCs), placing it in the larger end of the local stock. Across 2017–2022, sale prices on this property compounded at -12.6% per year. On a £-per-square-foot basis, the last sale (£1,558/sq ft) was about 41% below the postcode norm. Sold August 2022 for £6,975,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
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Everything you need to know about 12 Blenheim House
The true value, the hidden risks and the full sale history, in one report.
Larger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
12 Blenheim House's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate
Jan 2017EPC Rating
A
B
C
C72
D
E
F
G
Main Heating
—
Main Fuel
—
Hot Water
Very Good
Windows
Good
CO2 Emissions
16.0 t/year
Occupancy
—
Certificate validity
Valid until 6 January 2027
Get a survey for this property
Level 3 Building Survey
Top Floor FlatEPC CDetached over 300m²
Because the property is a large detached home over 300m², we believe a Level 3 building survey should be considered.
Planning history
Applications and permits filed against 12 Blenheim House, Crown Square, Southwark, London, SE1 2SF, sourced from the PlanIt planning register.
12 Blenheim House has no planning applications on record.
1
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
Current estimate
See how we calculated this£6,908,000
Modelled from EPC, postcode comparables and a sale-price growth of -12.6% per year over 5 years.
Last sold (2022)
£6,975,000
Growth on file: -12.6% per year over 5 years.
Sales timeline
11 August 2022Most recent
£6,975,000
-50.0%over 5 years19 June 2017
£13,950,000
Median price across the last 5 sales in SE1 2SF: £3,320,000 (2022–2018).
Nearby sales in SE1 2SF
30 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Sold Jul 2022
£3,050,00013 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Sold Jun 2021
£700,00026 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Sold Jun 2021
£3,925,00016 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Sold Sept 2018
£3,470,00014 Blenheim House, Crown Square, Southwark, London, SE1 2SF
Sold Jun 2018
£3,320,000
Versus other Crown Square homes
Four headline reads against 31 similar flats on this street, drawn from the latest EPC and Land Registry data.
12 Blenheim House is notably below the street on years held.
Price per m²
£16,767
Street avg £27,497
Floor Area
416 m²
Street avg 128 m²
CO₂ Emissions
16.0 t/year
Street avg 2.7 t/year
Years Held
4 years
Street avg 9 years
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Start your researchSimilar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£2.1m
10 Blenheim House, Crown Square, Southwark
SE1 2SF
£1.5m
10 Hanover House, Crown Square, Southwark
SE1 2SE
1 bed
£1.3m
1 Butlers & Colonial Wharf, Southwark
SE1 2PX
£1.2m
1 Blenheim House, Crown Square, Southwark
SE1 2SF
2 bed
£1.2m
1 Windlesham House, Duchess Walk, Southwark
SE1 2RZ
1 bed1 bath
£1.1m
1 Chatsworth House, Duchess Walk, Southwark
SE1 2RY
1 bed1 bath
£981k
1 Koops Mill Mews, Southwark
SE1 2SH
£822k
1 Sandringham House, Earls Way, Southwark
SE1 2QX
1 bed1 bath
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
Rail-style transport is unusually close for this postcode.
Crime
1516/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Tower Bridge — bus stop.
Closest school
0.3 km
Tower Bridge Primary School. 104 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
Modelled day and night-time noise levels around SE1 2SF from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
57.8dB
Night-time· 23:00 – 07:00
50.4dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4Common questions
The questions buyers, sellers and homeowners most often ask about 12 Blenheim House, Crown Square, Southwark, London, SE1 2SF. Each answer is also embedded as structured data for search engines.