Castle Square - SA3 4BJ
Key Street Insights
Castle Square is a residential street with 12 addresses.
It ranks as the 209th largest and 187th most expensive of the 661 streets in the SA3 area. The most common property type is a period house built between 1800 and 1911.
The street contains a total of 12 properties: 12 houses.
- Ave. Sale Price
- £248,743
- 10 Year change
- up 45.4%
- Ave. Rental Price
- £1,523pcm
- 10 Year change
- up 68.8%
- Ave. £ per ft²
- £271/ft²
- Ave. Gross Yield
- 7.3%/year/yr
Key Street Insights
Castle Square is a residential street with 12 addresses.
It ranks as the 209th largest and 187th most expensive of the 661 streets in the SA3 area. The most common property type is a period house built between 1800 and 1911.
The street contains a total of 12 properties: 12 houses.
- Ave. Sale Price
- £248,743
- 10 Year change
- up 45.4%
- Ave. Rental Price
- £1,523pcm
- 10 Year change
- up 68.8%
- Ave. £ per ft²
- £271/ft²
- Ave. Gross Yield
- 7.3%/year/yr
Explore Propertieson Castle Square, Mumbles, Swansea, SA3
- 1 Castle Square
House
- 2 Castle Square
3 Bed Period House
- 3 Castle Square
3 Bed Period House
- 4 Castle Square
3 Bed Period House
- 5 Castle Square
3 Bed Period House
Sales Market Trends
The last sale on Castle Square sold for £208,000 on 21st November 2025. Since then prices are up an average of 0.9%.
The current average value in the street is £248,743.
The Castle Square Sales Market has increased by 45.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 1.6% | £248,743 |
| June 2025 | 2.3% | £244,881 |
| June 2024 | 0.6% | £239,263 |
| June 2023 | 3.2% | £237,797 |
| June 2022 | 8.4% | £230,517 |
| June 2021 | 14.6% | £212,702 |
| June 2020 | -2.8% | £185,672 |
| June 2019 | 6.1% | £191,100 |
| June 2018 | 2.8% | £180,150 |
| June 2017 | 2.4% | £175,256 |
| June 2016 | -0.1% | £171,091 |
| June 2015 | 4.7% | £171,234 |
| June 2014 | 1.7% | £163,514 |
| June 2013 | 0.5% | £160,762 |
| June 2012 | 0.5% | £159,923 |
| June 2011 | -4% | £159,054 |
| June 2010 | 5.4% | £165,597 |
| June 2009 | -7.9% | £157,144 |
| June 2008 | -0.6% | £170,637 |
| June 2007 | 0% | £171,746 |
Rental Market Trends
The current average rental value in the street is £1,523.
The Castle Square Rental Market has increased by 68.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 3.1% | £1,523pcm |
| June 2025 | 4.5% | £1,478pcm |
| June 2024 | 6.3% | £1,414pcm |
| June 2023 | 7.1% | £1,330pcm |
| June 2022 | 14.9% | £1,242pcm |
| June 2021 | 9.3% | £1,081pcm |
| June 2020 | 1% | £989pcm |
| June 2019 | 3.4% | £979pcm |
| June 2018 | 1.1% | £947pcm |
| June 2017 | 3.7% | £936pcm |
| June 2016 | 2.9% | £903pcm |
| June 2015 | 1.1% | £877pcm |
| June 2014 | 1.5% | £867pcm |
| June 2013 | 0.5% | £854pcm |
| June 2012 | 1.7% | £850pcm |
| June 2011 | -0.5% | £836pcm |
| June 2010 | 3.4% | £840pcm |
| June 2009 | -5.4% | £813pcm |
| June 2008 | 3.9% | £859pcm |
| June 2007 | 0% | £827pcm |
Sales History
The last sale was on 21st November 2025 for £208,000 and since then the market in the area has increased by 0.9%. The street has had a total of 14 sales since 1995.
Castle Square, Mumbles, Swansea, SA3 has seen 3 sales in the last three years and 2 sales in the last twelve months.
- Sold Nov 2025£208,000 | 3 Bed House12, Castle Square, Swansea, SA3 4BJ12, Castle Square, Swansea, SA3 4BJ
- Sold Aug 2025£257,500 | 3 Bed House11, Castle Square, Swansea, SA3 4BJ11, Castle Square, Swansea, SA3 4BJ
- Sold Mar 2024£220,000 | 3 Bed House11, Castle Square, Swansea, SA3 4BJ11, Castle Square, Swansea, SA3 4BJ
- Sold Oct 2022£290,000 | 3 Bed House3, Castle Square, Swansea, SA3 4BJ3, Castle Square, Swansea, SA3 4BJ
- Sold Aug 2021£275,000 | 3 Bed House4, Castle Square, Swansea, SA3 4BJ4, Castle Square, Swansea, SA3 4BJ
Top 3 Most Expensive Sales
- Sold Oct 2022£290,000 | 3 Bed House3, Castle Square, Swansea, SA3 4BJ3, Castle Square, Swansea, SA3 4BJ
- Sold Aug 2021£275,000 | 3 Bed House4, Castle Square, Swansea, SA3 4BJ4, Castle Square, Swansea, SA3 4BJ
- Sold Aug 2025£257,500 | 3 Bed House11, Castle Square, Swansea, SA3 4BJ11, Castle Square, Swansea, SA3 4BJ
Nearby Streets
Castle Square, Mumbles, Swansea, SA3 is the 209th largest and the 187th most expensive street in the SA3 area.
- Castle Street, Mumbles, Swansea, SA321 Addresses|38 m away
- Newton Road, Mumbles, Swansea, SA371 Addresses|74 m away
- Victoria Avenue, Mumbles, Swansea, SA347 Addresses|105 m away
- Stanley Street, Mumbles, Swansea, SA311 Addresses|116 m away
- Helwick Close, Mumbles, Swansea, SA35 Addresses|127 m away
- Queens Road, Mumbles, Swansea, SA360 Addresses|164 m away
Property Types
- 8 period houses built between 1800 and 1911
- 4 other addresses of unknown type
- period house (8)
- Unknown (4)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 8 properties.
- The most common rating is D.
- A (0)
- E (3)
- B (0)
- F (0)
- C (2)
- G (0)
- D (3)
- No EPC (4)
Schools Nearby
Public Transport Nearby
The closest station to Castle Square, Mumbles, Swansea, SA3 - SA3 4BJ is Swansea station, which is 7.0 kilometres away.
- Swansea|7.0 km away
- Gowerton|8.4 km away
- Llansamlet|12.6 km away
