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9 Mariners Walk, Southsea, Portsmouth, PO4 8YG

How much is 9 Mariners Walk, Southsea, Portsmouth, PO4 8YG worth?

Estimated value — November 2026

£352,000

Likely range £289,000 – £429,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale April 1995

65%

confidence

High

Typically within 9% of the sale price

Property details

Semi-detached house

Mariners Walk · Southsea · PO4 8YG

Address

District
Portsmouth
County
Portsmouth
See house prices in PO4 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£100k£200k£300k£400k£500k20002002200420062008201020122014201620182020202220242026£352,000

Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from a recorded sale, and today it matches the likely range above.

View as a table
Modelled value at the end of each year, with any recorded sales
YearModelled valueLikely range
2000£112,870£95,119 – £132,357
2001£129,055£108,108 – £151,523
2002£162,328£135,355 – £190,668
2003£184,128£152,669 – £216,713
2004£195,183£160,639 – £230,825
2005£198,787£162,549 – £235,949
2006£206,796£168,139 – £246,821
2007£220,556£179,274 – £264,435
2008£190,617£154,930 – £229,786
2009£200,647£163,119 – £243,587
2010£205,149£166,892 – £249,658
2011£206,888£187,192 – £230,961
2012£211,346£190,019 – £237,413
2013£218,217£194,950 – £246,655
2014£233,428£207,205 – £265,478
2015£254,679£224,614 – £291,425
2016£273,333£239,505 – £314,678
2017£291,896£254,103 – £338,087
2018£300,154£259,578 – £349,747
2019£304,012£261,178 – £356,365
2020£314,511£268,401 – £370,868
2021£326,122£276,447 – £386,836
2022£369,192£310,847 – £440,502
2023£353,204£295,369 – £423,892
2024£363,435£301,848 – £438,708
2025£347,328£286,487 – £421,689
2026£352,000£289,000 – £429,000

Sale history

1995Sold
£66,500
2026Today — estimated
+429%£352,000

Mortgage calculator

£1,889

Estimated monthly repayment

£316,800

Loan amount

£363,314

Total interest

£680,114

Total repayable

A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.

Related properties

About this property

9 Mariners Walk, Southsea, Portsmouth, PO4 8YG is a semi-detached house on Mariners Walk in Southsea, Portsmouth. Stede's estimated value for November 2026 is £352,000. Four in five similar homes sold within their likely range when tested; for this property that range is £289,000 to £429,000. It combines its own last sale brought up to date with the House Price Index (75%) and recent sales of 30 similar homes in the same postcode sector (25%). The confidence score is 65 out of 100 (high): estimates like this one are typically within 9% of the eventual sale price.

It last sold in April 1995 for £66,500. The current estimate is 429% higher than that price. The current owner has held it for about 31 years.

The modelled value is up 1% over the past year and up 8% over the past five years.

Among 10 nearby properties Stede tracks in the PO4 area, estimated values run from £331,000 to £387,000. This semi-detached house's £352,000 sits around the middle of that range.

Common questions

How much is 9 Mariners Walk, Southsea, Portsmouth, PO4 8YG worth?

Stede estimates 9 Mariners Walk, Southsea, Portsmouth, PO4 8YG is worth £352,000 as of November 2026, within a likely range of £289,000 to £429,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.

When did 9 Mariners Walk, Southsea, Portsmouth, PO4 8YG last sell?

It last sold in April 1995 for £66,500.

What type of property is 9 Mariners Walk, Southsea, Portsmouth, PO4 8YG?

It is recorded as a Semi-detached house on Mariners Walk in the PO4 postcode area.

How reliable is this estimate?

The confidence score is 65 out of 100 (high). Tested against real sales of similar homes, estimates like this one are typically within 9% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.

How does Stede calculate this estimate?

It combines its own last sale brought up to date with the House Price Index (75%) and recent sales of 30 similar homes in the same postcode sector (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.

How we got this figure

We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 26,680 real sales of similar homes.

  • Its sale in April 1995, brought up to today with the House Price Index£355,84975%
  • 30 similar homes sold recently in the same postcode sector£341,47125%

Estimate £352,000, likely £289,000 – £429,000

Read the full methodology and data sources →