14 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
About 14 Arethusa House
14 Arethusa House is a semi-detached house in Portsmouth (PO1 3TQ). It has a recorded floor area of 127 m² (around 1367 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (June 2023) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since May 2012. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Good to Average. At 127 m² this is the 49th smallest of 52 units on EPC record in the building, where floor areas span 59–171 m². The building's EPC ratings span E to B across 52 units on file.
At 127 m² the property is well over the postcode median (95 m² across 51 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold April 2025 for £785,000. Across 2014–2025, sale prices on this property compounded at 5.2% per year. On a £-per-square-foot basis, the last sale (£574/sq ft) was about 70.7% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 14 June 2033
Property Improvements
Changes detected from historical EPC data
Wall insulation upgraded
More low energy lighting installed
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Planning history
14 Arethusa House has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
14 Arethusa House valuation sits well clear of the typical sold price in this postcode.
£708,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 11 years.
£785,000
Growth on file: 5.2% per year over 11 years.
Sales timeline
3 April 2025Most recent
£785,000
+26.6%over 3 years15 March 2022
£620,000
+37.8%over 7 years26 March 2014
£450,000
Median price across the last 5 sales in PO1 3TQ: £412,000 (2026–2023).
Nearby sales in PO1 3TQ
24 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Jun 2026
£480,00015 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Nov 2024
£412,0001 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Oct 2024
£240,00059 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Jul 2024
£390,00012 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Aug 2023
£785,000
Versus other Gunwharf Quays homes
On habitable rooms, 14 Arethusa House runs well behind the street norm.
Price per m²
£6,181
Street avg £3,944
Floor Area
127 m²
Street avg 94 m²
Habitable Rooms
1 rooms
Street avg 3 rooms
CO₂ Emissions
3.1 t/year
Street avg 2.2 t/year
Similar properties nearby
1 Blake House, Gunwharf Quays
PO1 3TH
1 Blossom Square
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1 Centurion Court, The Canalside, Gunwharf Quays
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1 Blackthorn Terrace, Cumberland Street
PO1 3JW
1 Eva Allaway Court, St Georges Square
PO1 3AU
1 Curzon Howe Road
PO1 3BZ
1 Ensign Mews, Cross Street
PO1 3FZ
1 Dean Street
PO1 3BH
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
501/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Portsmouth IOW Car Ferry Terminal — ferry terminal.
Closest school
0.6 km
St Jude's CofE Primary School. 28 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
47.0dB

Night-time· 23:00 – 07:00
39.6dB







