11 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
About 11 Arethusa House
11 Arethusa House is a two-bedroom semi-detached house in Portsmouth (PO1 3TQ). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (October 2020) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since July 2009. Between certificates, lighting went from Average to Very Good. The recommended improvements would push it to B (score 81). At 70 m² this is the 4th 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. Other recorded features include a balcony.
It hasn't traded since March 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £295,000 sits 73.5% above the 2002 sale of £170,000. On a £-per-square-foot basis, the last sale (£226/sq ft) was about 32.2% below the postcode norm. At 70 m² it's 26.3% smaller than the typical home in the postcode (95 m² median across 51 EPCs).
What this property has
Inside
- Bedrooms2
- Bathrooms2
Outside
- ParkingYes
- BalconyYes
Energy performance
11 Arethusa House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Ventilation system changed
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £545 · Includes VAT
Planning history
11 Arethusa House has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£295,000
Modelled from EPC, postcode comparables.
£170,000
Recorded with HM Land Registry.
Sales timeline
28 March 2002Most recent
£170,000
Median price across the last 5 sales in PO1 3TQ: £412,000 (2025–2023).
Nearby sales in PO1 3TQ
14 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ
Sold Apr 2025
£785,00015 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
11 Arethusa House outperforms the street on years held by a wide margin.
Price per m²
£2,429
Street avg £3,971
Floor Area
70 m²
Street avg 95 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.5 t/year
Street avg 2.2 t/year
Similar properties nearby
1 Centurion Court, The Canalside, Gunwharf Quays
PO1 3BQ
1 Blake House, Gunwharf Quays
PO1 3TH
1 Admiralty Tower, Queen Street
PO1 3GA
1 Jupiter Court, Gunwharf Quays
PO1 3TS
1 Godolphin House, Bonfire Corner
PO1 3GN
1 Dean Street
PO1 3BH
1 Brunswick House, Queen Street
PO1 3GB
1 Gloucester House, Queen Street
PO1 3GD
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady 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







