1 Janus House, Cunningham Avenue, Portsmouth, PO2 9AR
About 1 Janus House
1 Janus House is a detached house in Portsmouth (PO2 9AR). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 2007-2011 and council tax band B. The building has 3 units on EPC record across the postcode. The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (78 versus a best of 84). The latest certificate (June 2021) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (February 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good.
Everything you need to know about 1 Janus House
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
1 Janus House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Floor insulation added or improved
More low energy lighting installed
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Planning history
1 Janus House has no planning applications on record.
But the area is active
56 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
1 Janus House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£182,000
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 PO2 9AR: £265,000 (2025–2024).
Nearby sales in PO2 9AR
19 Cunningham Avenue, Portsmouth, PO2 9AR
Sold Jun 2025
£257,00010 Cunningham Avenue, Portsmouth, PO2 9AR
Sold Mar 2025
£265,00026 Cunningham Avenue, Portsmouth, PO2 9AR
Sold Jun 2024
£265,00023 Cunningham Avenue, Portsmouth, PO2 9AR
Sold Jun 2024
£269,00022 Cunningham Avenue, Portsmouth, PO2 9AR
Sold Dec 2022
£280,000
Versus other Cunningham Avenue homes
1 Janus House is notably below the street on epc rating.
EPC Rating
78 (C)
Street avg 80 (C)
Floor Area
61 m²
Street avg 48 m²
CO₂ Emissions
1.4 t/year
Street avg 1.2 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Everything you need to know about 1 Janus House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Oakwood Road — bus stop.
Closest school
0.5 km
King's Academy Northern Parade (Junior). 30 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
58.9dB

Night-time· 23:00 – 07:00
50.5dB






