Our Data Sources
121, Mortimer Avenue, Cardiff has 2 entries in the Land Registry , most recently in April 2021 and a single entry in the EPC database dated August 2018.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 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 121, Mortimer Avenue, Cardiff is in very good condition we estimate a sale value of £243,142 and a rental value of £1,291 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £215,354 and a rental value of £1,143 per month.
Plot Size
According to data from HM Land Registry, 121, Mortimer Avenue, Cardiff sits on a plot of 109 m2.
We have plot size data on 52 out of 56 other houses in the postcode and 121, Mortimer Avenue, Cardiff sits on the 48th largest plot.
Energy Efficiency
121, Mortimer Avenue, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 10 Aug 2018.
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, 121, Mortimer Avenue, Cardiff was last sold on 1st April 2021 for £193,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since April 2021, the market for similar properties has dropped by 0.8%.
- Sold Apr 2021£193,000
- Sold Sep 2018£176,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 238 sales of properties similar to 121, Mortimer Avenue, Cardiff within a radius of 730 metres over the last 2 years.
The most recent example is 139, Mortimer Avenue, Cardiff, CF3 6YG, a freehold house which sold for £255,000 on the 16th January 2026.
Read more about house prices in CF3.
- Sold Jan 2026£255,000 | 2 Bed House139, Mortimer Avenue, Cardiff, CF3 6YG139, Mortimer Avenue, Cardiff, CF3 6YG
- Sold Jul 2022£227,500 | 2 Bed House115, Mortimer Avenue, Cardiff, CF3 6YG115, Mortimer Avenue, Cardiff, CF3 6YG
- Sold Jul 2021£195,000 | 2 Bed House119, Mortimer Avenue, Cardiff, CF3 6YG119, Mortimer Avenue, Cardiff, CF3 6YG
•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, 121, Mortimer Avenue, Cardiff is the 99th largest and the 100th most expensive property on the street.
When compared to the postcode district it is £27k less 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.
