Our Data Sources
3, Castle Avenue, Swansea has 2 entries in the Land Registry , most recently in March 2016 and a single entry in the EPC database dated January 2016.
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 3, Castle Avenue, Swansea, we estimate a market value of £616,966 and a rental value of £2,341 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £546,456 and £2,074 per month respectively.
Plot Size
HM Land Registry records the plot of land for 3, Castle Avenue, Swansea as measuring 238 m2.
That makes it the 11th largest plot in the postcode, where 15 of the 16 other houses have recorded plot data.
Energy Efficiency
3, Castle Avenue, Swansea has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Jan 2016.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 3, Castle Avenue, Swansea completed on 15th March 2016 at £370,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 35.9% over the period since March 2016.
- Sold Mar 2016£370,000
- Sold Oct 2007£241,000
Similar Properties Sold Nearby
Over the past 2 years 51 properties similar to 3, Castle Avenue, Swansea have sold within a radius of 750 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 7th November 2025, was 8, Upper Church Park, Swansea, SA3 4DD, a freehold house which sold for £555,000.
Read more about house prices in SA3.
- Sold Nov 2025£555,000 | 4 Bed House8, Upper Church Park, Swansea, SA3 4DD8, 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 Mar 2020£510,000 | 4 Bed House8, Castle Avenue, Swansea, SA3 4BA8, Castle Avenue, Swansea, SA3 4BA
•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, 3, Castle Avenue, Swansea comes out as the 6th largest and the 8th most expensive in our analysis of the public data.
It is also £219k 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.
