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

Property type
Mid terrace
Floor 03
Bedrooms
2
Bathrooms
2
Floor area
86 m²
926 sq ft
Energy rating
C
Score 73
Council tax
Band E
Tenure
Owner Occupied
Overview

About 25 Arethusa House

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

25 Arethusa House is a two-bedroom mid-terrace house in Portsmouth (PO1 3TQ). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (December 2025) shows a C (score 73). Earlier certificates rated it B (August 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to 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. This certificate was lodged in the last six months, so the rating reflects current condition. At 86 m² this is the 19th 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.

Untraded for 21 years, with the last transfer in December 2004. Across 2002–2004, sale prices on this property compounded at 11.1% per year. Today's modelled estimate of £415,000 sits 69.4% above the 2004 sale of £245,000. On a £-per-square-foot basis, the last sale (£265/sq ft) was about 21.3% below the postcode norm.

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

Outside

  • ParkingAllocated
  • BalconyYes

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 25 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.

25 Arethusa House's carbon output is low for the local stock.

Current Certificate(1 of 3)
Dec 2025

EPC Rating

A
B
C
C73
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Electric
Hot Water
Very Poor
Windows
Average
CO2 Emissions
0.6 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Sept 2009from Aug 2009
EPC improved fromB82toC74
Main Fuel
GasElectric

Changed to a more efficient fuel source

Hot Water
GoodPoor

Hot water efficiency decreased

Windows
AverageGood

Window efficiency improved

Dec 2025from Sept 2009
Hot Water
Main SystemImmersion

Hot water system changed

Low Energy Lighting
0%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

21st century3rd Floor FlatEPC C

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 £695 · Includes VAT

Planning

Planning history

Applications and permits filed against 25 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ, sourced from the PlanIt planning register.

25 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 and a sale-price growth of 11.1% per year over 3 years.

See how we calculated this
Last sold (2004)

£245,000

Growth on file: 11.1% per year over 3 years.

Sales timeline

  1. 21 December 2004Most recent

    £245,000

    +32.4%over 2 years

  2. 25 April 2002

    £185,000

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.

CO₂ Emissions for 25 Arethusa House runs comfortably ahead of the street norm.

Price per m²

£2,849

Street avg £3,963

Strongly below

Floor Area

86 m²

Street avg 95 m²

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

Below

CO₂ Emissions

0.6 t/year

Street avg 2.2 t/year

Strongly above
Before you decide

Everything you need to know about 25 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 25 Arethusa House, Gunwharf Quays, Portsmouth, PO1 3TQ. Each answer is also embedded as structured data for search engines.