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83 Castle Road, Mumbles, Swansea, SA3 5TA

How much is 83 Castle Road, Mumbles, Swansea, SA3 5TA worth?

Estimated value — November 2026

£333,000

Likely range £270,000 – £380,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale November 1998

67%

confidence

High

Typically within 8% of the sale price

Property details

Semi-detached house

Castle Road · Swansea · SA3 5TA

109 m²1,173 sq ftFloor area
1930-1949Built
Mains gas boilerHeating

Energy performance

Current ratingD58
PotentialC77

Mains Gas (Not Community) · EPC 0588-1950-7260-3095-6954 · inspected October 2015

Address

District
Swansea
County
Swansea
See house prices in SA3 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£100k£200k£300k£400k20002002200420062008201020122014201620182020202220242026£333,000

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£79,953£69,354 – £92,368
2001£85,004£73,059 – £97,777
2002£102,296£87,103 – £117,642
2003£134,412£113,465 – £155,392
2004£165,346£138,454 – £191,626
2005£187,170£155,878 – £216,336
2006£200,943£166,527 – £232,001
2007£221,805£182,600 – £256,244
2008£213,371£174,285 – £247,294
2009£191,565£155,565 – £222,178
2010£185,866£150,192 – £216,458
2011£185,498£150,111 – £216,287
2012£184,680£149,269 – £216,156
2013£191,484£154,838 – £224,981
2014£194,255£172,955 – £210,146
2015£202,531£178,943 – £220,129
2016£209,210£183,417 – £228,452
2017£216,977£188,748 – £238,037
2018£224,714£193,946 – £247,668
2019£234,306£200,627 – £259,431
2020£248,907£211,433 – £276,864
2021£285,711£240,748 – £319,255
2022£301,025£251,599 – £337,898
2023£301,546£249,979 – £340,017
2024£306,550£252,037 – £347,218
2025£327,256£266,830 – £372,336
2026£333,000£270,000 – £380,000

Sale history

1998Sold
£70,000
2026Today — estimated
+376%£333,000

Mortgage calculator

£1,787

Estimated monthly repayment

£299,700

Loan amount

£343,703

Total interest

£643,403

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

83 Castle Road, Mumbles, Swansea, SA3 5TA is a semi-detached house on Castle Road in Swansea. Stede's estimated value for November 2026 is £333,000. Four in five similar homes sold within their likely range when tested; for this property that range is £270,000 to £380,000. It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 92 similar homes in the same postcode sector (25%). The confidence score is 67 out of 100 (high): estimates like this one are typically within 8% of the eventual sale price.

It last sold in November 1998 for £70,000. The current estimate is 376% higher than that price. The current owner has held it for about 28 years.

Its EPC energy-efficiency rating is band D (58 out of 100), with a potential of band C (77) after the recommended improvements. The certificate records a total floor area of 109 m² (1,173 sq ft). It was lodged in October 2015.

The modelled value is up 1% over the past year and up 18% over the past five years.

Among 10 nearby properties Stede tracks in the SA3 area, estimated values run from £327,000 to £555,000. This semi-detached house's £333,000 sits toward the lower end of that range.

Common questions

How much is 83 Castle Road, Mumbles, Swansea, SA3 5TA worth?

Stede estimates 83 Castle Road, Mumbles, Swansea, SA3 5TA is worth £333,000 as of November 2026, within a likely range of £270,000 to £380,000. 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 83 Castle Road, Mumbles, Swansea, SA3 5TA last sell?

It last sold in November 1998 for £70,000.

What type of property is 83 Castle Road, Mumbles, Swansea, SA3 5TA?

It is recorded as a Semi-detached house on Castle Road in the SA3 postcode area.

What is the EPC rating of 83 Castle Road, Mumbles, Swansea, SA3 5TA?

83 Castle Road, Mumbles, Swansea, SA3 5TA has an EPC energy-efficiency rating of band D (58 out of 100). Its potential rating after the recommended improvements is band C (77). The certificate records a floor area of 109 m² (1,173 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.

How reliable is this estimate?

The confidence score is 67 out of 100 (high). Tested against real sales of similar homes, estimates like this one are typically within 8% 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 their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 92 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 18,066 real sales of similar homes.

  • Recent price per m² in the same postcode sector, for its 109 m²£341,34750%
  • Its sale in November 1998, brought up to today with the House Price Index£311,98225%
  • 92 similar homes sold recently in the same postcode sector£336,13425%

Estimate £333,000, likely £270,000 – £380,000

Read the full methodology and data sources →