Flat 1, 128 St Marys Road, Southampton, SO14 0BB
About Flat 1
Flat 1 is a three-bedroom detached house in Southampton (SO14 0BB). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to before 1900 and council tax band A. At 83 m² this is the largest unit on EPC record across the building (47–83 m²). On EPC score it ranks last in the building (69 versus a best of 75). The latest certificate (January 2025) shows a C (score 69), just inside the C band. When first surveyed in November 2008 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Average and roof efficiency went from Very Poor to Average.
It hasn't traded since April 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £182,000 sits 185.9% above the 1999 sale of £63,662. On a £-per-square-foot basis, the last sale (£71/sq ft) was about 42.9% below the postcode norm.
What this property has
Inside
- Bedrooms3
Energy performance
EPC Rating
Certificate validity
Valid until 31 January 2035
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Cavity wall insulation installed
Roof insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 1 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 1 has been held in the same hands since before 2000.
£182,000
Modelled from EPC, postcode comparables.
£63,662
Recorded with HM Land Registry.
Sales timeline
22 April 1999Most recent
£63,662
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
Floor Area for Flat 1 runs comfortably ahead of the street norm.
EPC Rating
69 (C)
Street avg 68 (D)
Floor Area
83 m²
Street avg 52 m²
CO₂ Emissions
2.8 t/year
Street avg 2.1 t/year
Habitable Rooms
4 rooms
Street avg 2 rooms
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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







