Flat C, 139 St Marys Road, Southampton, SO14 0BB
About Flat C
Flat C is a mid-terrace house in Southampton (SO14 0BB). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (April 2024) shows a C (score 75), near the top of the C band. When first surveyed in May 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, hot-water efficiency went from Very Poor to Good and main heating went from Average to Good; while lighting dropped from Very Good to Good.
At 52 m² it sits well below the postcode median (83 m² across 21 EPCs), making it one of the more compact homes locally.
Everything you need to know about Flat C
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Flat C's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 12 April 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Low energy lighting percentage decreased
Hot water system upgraded
Cavity wall insulation installed
More low energy lighting installed
Heating controls changed
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
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Planning history
Flat C has no planning applications on record.
But the area is active
26 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat C has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£146,000
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 5 sales in SO14 0BB: £227,000 (2025–2007).
Nearby sales in SO14 0BB
135 St Marys Road, Southampton, SO14 0BB
Sold Nov 2025
£300,000141 St Marys Road, Southampton, SO14 0BB
Sold Apr 2025
£245,000132 St Marys Road, Southampton, SO14 0BB
Sold May 2023
£200,000138 St Marys Road, Southampton, SO14 0BB
Sold Feb 2007
£215,000129 St Marys Road, Southampton, SO14 0BB
Sold May 2006
£121,000
Versus other St Marys Road homes
Flat C outperforms the street on co₂ emissions by a wide margin.
EPC Rating
75 (C)
Street avg 68 (D)
Floor Area
52 m²
Street avg 56 m²
CO₂ Emissions
1.5 t/year
Street avg 2.3 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about Flat C
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
413/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Argyle Road SCH Only — bus stop.
Closest school
0.4 km
St Mary's Church of England Primary School & Nursery. 34 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
56.5dB
Night-time· 23:00 – 07:00
46.0dB