1 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
About 1 Jupiter Court
1 Jupiter Court is a one-bedroom semi-detached house in Portsmouth (PO1 3TS). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 2003-2006 and council tax band D. At 46 m² this is the 2nd smallest of 4 units on EPC record in 1 Jupiter Court, where floor areas span 42–65 m². On EPC score it ranks last in the building (75 versus a best of 80). Other recorded features include a balcony. The latest certificate (May 2019) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since March 2009.
At 46 m² it sits well below the postcode median (71 m² across 29 EPCs), making it one of the more compact homes locally. Across 2016–2020, sale prices on this property compounded at 4.3% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 34.2% above the typical sold price in the postcode. Most recent transfer: January 2020 at £230,000.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- CloakroomYes
Outside
- ParkingAllocated
- BalconyYes
Building
- Heating systemGas
- RefurbishedYes
Energy performance
1 Jupiter Court's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Floor insulation added or improved
Ventilation system changed
Get a survey for this property
Level 2 HomeBuyer Report
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Planning history
1 Jupiter Court 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£217,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.3% per year over 4 years.
£230,000
Growth on file: 4.3% per year over 4 years.
Sales timeline
6 January 2020Most recent
£230,000
+17.9%over 3 years8 February 2016
£195,000
Median price across the last 5 sales in PO1 3TS: £255,000 (2025–2022).
Nearby sales in PO1 3TS
5 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
Sold Aug 2025
£226,00033 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
Sold May 2025
£255,0003 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
Sold Feb 2024
£295,00016 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
Sold Jul 2022
£265,00028 Jupiter Court, Gunwharf Quays, Portsmouth, PO1 3TS
Sold May 2022
£220,000
Versus other Gunwharf Quays homes
1 Jupiter Court outperforms the street on price per m² by a wide margin.
Price per m²
£5,000
Street avg £3,581
Floor Area
46 m²
Street avg 73 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.3 t/year
Street avg 1.6 t/year
Similar properties nearby
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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 George's Beneficial Church of England (Voluntary Controlled) Primary School. 27 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
48.6dB

Night-time· 23:00 – 07:00
40.9dB







