Our Data Sources
186, Mortimer Avenue, Cardiff has 2 entries in the Land Registry , most recently in November 2025 and a single entry in the EPC database dated July 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high 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 186, Mortimer Avenue, Cardiff is in very good condition we estimate a sale value of £298,103 and a rental value of £1,476 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £264,034 and a rental value of £1,307 per month.
Plot Size
According to data from HM Land Registry, 186, Mortimer Avenue, Cardiff sits on a plot of 172 m2.
We have plot size data on 51 out of 52 other houses in the postcode and 186, Mortimer Avenue, Cardiff sits on the 21st largest plot.
Energy Efficiency
186, Mortimer Avenue, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 19 Jul 2019.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 186, Mortimer Avenue, Cardiff was last sold on 21st November 2025 for £290,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since November 2025, the market for similar properties has dropped by 21.7%.
- Sold Nov 2025£290,000
- Sold Aug 2019£230,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 284 sales of properties similar to 186, Mortimer Avenue, Cardiff within a radius of 840 metres over the last 2 years.
The most recent example is 166, Mortimer Avenue, Cardiff, CF3 6YF, a freehold house which sold for £289,950 on the 4th August 2025.
Read more about house prices in CF3.
- Sold Aug 2025£289,950 | 3 Bed House166, Mortimer Avenue, Cardiff, CF3 6YF166, Mortimer Avenue, Cardiff, CF3 6YF
- Sold Mar 2025£280,000 | 3 Bed House8, Heol Williams, Cardiff, CF3 6AQ8, Heol Williams, Cardiff, CF3 6AQ
- Sold Sep 2022£290,000 | 3 Bed House188, Mortimer Avenue, Cardiff, CF3 6YF188, Mortimer Avenue, Cardiff, CF3 6YF
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Mortimer Avenue, Old St. Mellons, Cardiff, CF3 has a total of 108 addresses. According to our analysis of all the public data, 186, Mortimer Avenue, Cardiff is the 70th largest and the 69th most expensive property on the street.
When compared to the postcode district it is £26k more expensive than the average property in CF3.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|4.0 km away
- Lisvane & Thornhill|4.3 km away
- Heath High Level|4.5 km away
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
