Our Data Sources
1, Castle Avenue, Swansea has no recent1 records in the the Land Registry and a single entry in the EPC database dated June 2020.
We combine this information with public data 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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 1, Castle Avenue, Swansea is in very good condition we estimate a sale value of £612,085 and a rental value of £2,337 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £542,132 and a rental value of £2,070 per month.
Plot Size
According to data from HM Land Registry, 1, Castle Avenue, Swansea sits on a plot of 209 m2.
We have plot size data on 15 out of 16 other houses in the postcode and 1, Castle Avenue, Swansea sits on the 15th largest plot.
Energy Efficiency
1, Castle Avenue, Swansea has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 29 Jun 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 1, Castle Avenue, Swansea was last sold on 25th July 2000 for £100,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Jul 2000£100,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 55 sales of properties similar to 1, Castle Avenue, Swansea within a radius of 750 metres over the last 2 years.
The most recent example is 8, Upper Church Park, Swansea, SA3 4DD, a freehold house which sold for £555,000 on the 7th November 2025.
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
Castle Avenue, Mumbles, Swansea, SA3 has a total of 16 addresses. According to our analysis of all the public data, 1, Castle Avenue, Swansea is the 8th largest and the 9th most expensive property on the street.
When compared to the postcode district it is £215k more expensive than the average property in SA3.
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
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
