1 2, Flat 4, John Street, Southampton, SO14 3DR
About 1 2
1 2 is a semi-detached house in Southampton (SO14 3DR). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1930-1949. At 57 m² this is the largest unit on EPC record across 1 2 (24–57 m²). The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 65). The latest certificate (July 2021) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in January 2017 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor and roof efficiency went from Very Poor to Very Good. The recommended improvements would push it to D (score 60). Main heating runs on electricity.
It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs).
Everything you need to know about 1 2
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
1 2's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 28 July 2031
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 2 has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
1 2 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£144,000
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 3DR: £375,000 (2025–2021).
Nearby sales in SO14 3DR
Versus other John Street homes
On epc rating, 1 2 runs well behind the street norm.
EPC Rating
39 (E)
Street avg 72 (C)
Floor Area
57 m²
Street avg 41 m²
CO₂ Emissions
6.0 t/year
Street avg 1.2 t/year
Habitable Rooms
2 rooms
Street avg 1 rooms
Everything you need to know about 1 2
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
College Keep — bus stop.
Closest school
0.4 km
Hope Community School Southampton. 25 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
54.5dB
Night-time· 23:00 – 07:00
45.3dB