Our Data Sources
18, Alltmawr Road, Cardiff has a single entry in the Land Registry from June 2015 and a single entry in the EPC database dated April 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 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 18, Alltmawr Road, Cardiff, we estimate a market value of £697,194 and a rental value of £2,150 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £617,515 and £1,904 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Alltmawr Road, Cardiff as measuring 409 m2.
That makes it the 20th largest plot in the postcode, where all 20 other houses have recorded plot data.
Energy Efficiency
18, Alltmawr Road, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 08 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 18, Alltmawr Road, Cardiff completed on 1st June 2015 at £390,000 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 risen by 4.3% over the period since June 2015.
- Sold Jun 2015£390,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 18, Alltmawr Road, Cardiff have sold within a radius of 700 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th June 2025, was 10, Llandennis Green, Cardiff, CF23 6JX, a freehold house which sold for £700,000.
Read more about house prices in CF23.
- Sold Jun 2025£700,000 | 4 Bed House10, Llandennis Green, Cardiff, CF23 6JX10, Llandennis Green, Cardiff, CF23 6JX
- Sold Jul 2023£850,000 | 4 Bed House7, Bryngwyn Road, Cardiff, CF23 6PQ7, Bryngwyn Road, Cardiff, CF23 6PQ
- Sold Jun 2023£10,000 | 4 Bed House3, Hollybush Road, Cardiff, CF23 6SX3, Hollybush Road, Cardiff, CF23 6SX
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 20 addresses on Alltmawr Road, Cardiff, CF23, 18, Alltmawr Road, Cardiff comes out as the 17th largest and the 17th most expensive in our analysis of the public data.
It is also £306k more expensive than the average property across the CF23 district.
More reading links
Schools Nearby
Public Transport Nearby
- 1.1kmHeath High Level
- 1.2kmHeath Low Level
- 1.6kmLlanishen
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.












