Our Data Sources
14, Castle Avenue, Swansea has a single entry in the Land Registry from June 2025 and a single entry in the EPC database dated November 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 14, Castle Avenue, Swansea, we estimate a market value of £548,838 and a rental value of £2,196 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £486,114 and £1,945 per month respectively.
Energy Efficiency
14, Castle Avenue, Swansea has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 06 Nov 2024.
The property is connected to mains gas and has partial double glazing. It is heated using Room heaters, mains gas.
Sold Prices
The most recent sale of 14, Castle Avenue, Swansea completed on 4th June 2025 at £290,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have dropped by 6.5% over the period since June 2025.
- Sold Jun 2025£290,000
Similar Properties Sold Nearby
Over the past 2 years 51 properties similar to 14, Castle Avenue, Swansea have sold within a radius of 730 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 29th November 2024, was 2, Upper Church Park, Swansea, SA3 4DD, a freehold house which sold for £445,000.
Read more about house prices in SA3.
- Sold Nov 2024£445,000 | 3 Bed House2, Upper Church Park, Swansea, SA3 4DD2, Upper Church Park, Swansea, SA3 4DD
- Sold Feb 2023£525,000 | 3 Bed House10, Castle Avenue, Swansea, SA3 4BA10, Castle Avenue, Swansea, SA3 4BA
- Sold Feb 2021£275,000 | 3 Bed House5, Upper Church Park, Swansea, SA3 4DD5, Upper Church Park, Swansea, SA3 4DD
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 16 addresses on Castle Avenue, Mumbles, Swansea, SA3, 14, Castle Avenue, Swansea comes out as the 14th largest and the 14th most expensive in our analysis of the public data.
It is also £154k more expensive than the average property across the SA3 district.
More reading links
Schools Nearby
Public Transport Nearby
- Swansea|6.8 km away
- Gowerton|8.4 km away
- Llansamlet|12.4 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












