Sarum House, Flat 18, Blackwater Drive, Totton, Southampton, SO40 2GT
About Sarum House
Sarum House is a semi-detached house in Totton, Southampton, Southampton (SO40 2GT). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1967-1975 and council tax band A. At 29 m² this is the smallest unit on EPC record across Sarum House (29–75 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (June 2023) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (June 2010); the latest reading is one band lower. Between certificates, window efficiency went from Average to Good and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Poor.
Energy performance
Sarum House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Window efficiency improved
More low energy lighting installed
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Planning history
Sarum House 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
Sarum House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£112,000
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 Blackwater Drive homes
On epc rating, Sarum House stands well clear of the street.
EPC Rating
77 (C)
Street avg 73 (C)
Floor Area
29 m²
Street avg 36 m²
CO₂ Emissions
1.0 t/year
Street avg 1.5 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Sarum Compton House — bus stop.
Closest school
0.5 km
Calmore Infant School. 12 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
50.9dB

Night-time· 23:00 – 07:00
40.0dB







