23b, St Marys Road, Southampton, SO14 0BG
About 23b
23b is a semi-detached house in Southampton (SO14 0BG). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2015) shows an F (score 36), near the bottom of the EPC scale. Earlier certificates rated it D (February 2009); the latest reading is 2 bands lower. Between certificates, window efficiency went from Average to Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 75), a 3-band jump. The latest certificate is from March 2015, so improvements made since then won't be reflected.
At 93 m² the property is well over the postcode median (48 m² across 27 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about 23b
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Energy performance
23b sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Mar 2025
EPC Rating
Certificate validity
Expired on 6 March 2025
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Window efficiency improved
Low energy lighting percentage decreased
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
23b 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
23b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£198,000
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 0BG: £210,000 (2025–2020).
Nearby sales in SO14 0BG
28 St Marys Road, Southampton, SO14 0BG
Sold Mar 2025
£345,00029 St Marys Road, Southampton, SO14 0BG
Sold Aug 2024
£154,00039 St Marys Road, Southampton, SO14 0BG
Sold Jun 2021
£250,00043 St Marys Road, Southampton, SO14 0BG
Sold May 2021
£203,00033 St Marys Road, Southampton, SO14 0BG
Sold Sept 2020
£210,000
Versus other St Marys Road homes
EPC Rating for 23b lags the street by a wide margin.
EPC Rating
36 (F)
Street avg 66 (D)
Floor Area
93 m²
Street avg 133 m²
CO₂ Emissions
7.4 t/year
Street avg 4.4 t/year
Habitable Rooms
4 rooms
Street avg 7 rooms
Everything you need to know about 23b
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
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
45.9dB