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

Estimated value

£440,000

  • Since the 2015 sale (£340,000)+29%
  • Against PO1 3TQ's recent median (£412,000)+7%

Newest record on this page: June 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
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
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£440,000

  • Against its 2015 sale (£340,000)+29%
  • Against PO1 3TQ's recent median (£412,000)+7%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 31 Arethusa House is modelled from its 100 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in PO1 3TQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    100 m² from the EPC lodged in February 2023

  • Sales of this home

    1 sale recorded, the latest in 2015

  • Recent sales in PO1 3TQ

    5 sales, median £412,000 (2026–2024)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: June 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

31 Arethusa House valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 29 April 2015Most recent

    £340,000

Median price across the last 5 sales in PO1 3TQ: £412,000 (2026–2024).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

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 £440,000 is 29.4% 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.

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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

Certificate validity

Valid until 13 February 2033

6 years remaining

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

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.

2

But the area is active

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

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 £3,998

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
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

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.

Nearest schools

  • St Jude's CofE Primary SchoolPrimary619m
  • St George's Beneficial Church of England (Voluntary Controlled) Primary SchoolPrimary668m
  • Ark Charter AcademySecondary1.4km
  • Cottage Grove Primary School and NurseryPrimary1.4km

Nearest stops

  • Portsmouth IOW Car Ferry TerminalFerry terminal81m
  • Portsmouth IOW Car Ferry TerminalFerry terminal91m
  • Portsmouth Millenium PontoonFerry terminal145m
  • Broad StreetBus stop204m

Most reported crime locally

  • Violence & Sexual Offences2,691 reports38%
  • Shoplifting928 reports13%
  • Anti-social Behaviour766 reports11%
  • Public Order577 reports8%

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
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

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
£335k

1 Centurion Court, The Canalside, Gunwharf Quays

PO1 3BQ

2 bed2 bath
£171k

1 Admiralty Tower, Queen Street

PO1 3GA

2 bed2 bath
£219k

1 Jupiter Court, Gunwharf Quays

PO1 3TS

1 bed1 bath
£171k

1 Godolphin House, Bonfire Corner

PO1 3GN

1 bed1 bath
£164k

1 Gloucester House, Queen Street

PO1 3GD

1 bed1 bath
£153k

1 Brunswick House, Queen Street

PO1 3GB

1 bed1 bath
£145k

1 Hamburg House, Cross Street

PO1 3GG

1 bed1 bath

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 31 Arethusa House is modelled from its 100 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in PO1 3TQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 31 Arethusa House. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 31 Arethusa House was lodged in February 2023 at band D and is valid until February 2033. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 31 Arethusa House. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 14 months, which places each incident at an approximate point. The 28 schools and 30 stops listed are measured in a straight line from PO1 3TQ, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
Council tax band
31 Arethusa House is in council tax band E. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
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.

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