100d, Flat 4, St Mary Street, Southampton, SO14 1PB
About 100d
100d is a mid-terrace house in Southampton (SO14 1PB). It has a recorded floor area of 29 m² (around 312 sq ft) and construction records dating it to 2003-2006. At 29 m² this is the smallest unit on EPC record across 100d (29–34 m²). The latest certificate (January 2024) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (December 2008); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and main heating dropped from Very Good to Good.
At 29 m² it sits well below the postcode median (76 m² across 11 EPCs), making it one of the more compact homes locally.
Everything you need to know about 100d
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Energy performance
100d's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 8 January 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
More low energy lighting installed
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Planning history
100d has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
100d has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£125,000
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 1PB: £225,000 (2023–2015).
Nearby sales in SO14 1PB
96a, St Mary Street, Southampton, SO14 1PB
Sold Dec 2023
£225,00097a, St Mary Street, Southampton, SO14 1PB
Sold Nov 2021
£270,00095a, St Mary Street, Southampton, SO14 1PB
Sold Dec 2019
£187,50097 St Mary Street, Southampton, SO14 1PB
Sold Aug 2018
£245,00096 St Mary Street, Southampton, SO14 1PB
Sold Mar 2015
£170,000
Versus other St Mary Street homes
On floor area, 100d runs well behind the street norm.
EPC Rating
79 (C)
Street avg 78 (C)
Floor Area
29 m²
Street avg 32 m²
CO₂ Emissions
0.7 t/year
Street avg 0.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 100d
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
0.2 km
Solent University — bus stop.
Closest school
0.2 km
St Mary's Church of England Primary School & Nursery. 31 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
56.4dB
Night-time· 23:00 – 07:00
46.2dB