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31 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ

Property type
Mid terrace
Floor 00
Bedrooms
2
Bathrooms
2
Floor area
100 m²
1076 sq ft
Energy rating
D
Score 62
Council tax
Band E
Tenure
Owner Occupied
Overview

About 31 Arethusa House

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

31 Arethusa House is a two-bedroom mid-terrace house in Portsmouth (PO1 3TQ). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (February 2023) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2010); the latest reading is one band lower. Between certificates, window efficiency went from Average to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. Main heating runs on electricity. At 100 m² this is the 32nd 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 lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). On the market in April 2015 and unlisted since — roughly 11 years. Today's modelled estimate of £415,000 is 22.1% above the 2015 sale price.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms2
  • Bathrooms2
  • Open-plan layoutYes
  • Dining roomYes
  • EnsuiteYes

Outside

  • ParkingYes
  • BalconyYes

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 31 Arethusa 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

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Feb 2023

EPC Rating

A
B
C
D
D62
E
F
G
Main Heating
Electric & Gas
Main Fuel
Electric
Hot Water
Very Poor
Windows
Good
CO2 Emissions
3.1 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2023from Jun 2010
EPC improved fromC74toD62
Main Fuel
GasElectric

Changed to a more efficient fuel source

Hot Water
Main SystemImmersion

Hot water system changed

Windows
AverageGood

Window efficiency improved

Floor Insulation
PartialInsulated

Floor insulation added or improved

Low Energy Lighting
15%100%

More low energy lighting installed

Ventilation
ExtractNatural

Ventilation system changed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st centuryGround Floor FlatEPC DNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £1,020 · Includes VAT

Planning

Planning history

Applications and permits filed against 31 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ, sourced from the PlanIt planning register.

31 Arethusa House has no planning applications on record.

3

But the area is active

3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Current estimate

£415,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2015)

£340,000

Recorded with HM Land Registry.

Sales timeline

  1. 29 April 2015Most recent

    £340,000

Median price across the last 5 sales in PO1 3TQ: £412,000 (2025–2023).

On the street

Versus other Gunwharf Quays homes

Four headline reads against 51 similar flats on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 31 Arethusa House runs well behind the street norm.

Price per m²

£3,400

Street avg £3,952

Below

Floor Area

100 m²

Street avg 95 m²

Above

Habitable Rooms

4 rooms

Street avg 3 rooms

Strongly above

CO₂ Emissions

3.1 t/year

Street avg 2.2 t/year

Strongly below
Before you decide

Everything you need to know about 31 Arethusa 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

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£450k

1 Blake House, Gunwharf Quays

PO1 3TH

2 bed
£336k

1 Centurion Court, The Canalside, Gunwharf Quays

PO1 3BQ

2 bed2 bath
£166k

1 Admiralty Tower, Queen Street

PO1 3GA

2 bed2 bath
£217k

1 Jupiter Court, Gunwharf Quays

PO1 3TS

1 bed1 bath
£341k

1 Blackthorn Terrace, Cumberland Street

PO1 3JW

4 bed2 bath
£166k

1 Godolphin House, Bonfire Corner

PO1 3GN

1 bed1 bath
£157k

1 Brunswick House, Queen Street

PO1 3GB

1 bed1 bath
£147k

1 Gloucester House, Queen Street

PO1 3GD

1 bed1 bath
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Portsmouth district page.
Full Portsmouth report

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around PO1 3TQ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for PO1 3TQ

Daytime· 07:00 – 23:00

47.0dB

Low
Night-time road noise heatmap for PO1 3TQ

Night-time· 23:00 – 07:00

39.6dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 31 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ. Each answer is also embedded as structured data for search engines.