Our Data Sources
18, Mardy Street, Cardiff has no records in the Land Registry and a single entry in the EPC database dated June 2011.
We combine this information with public data 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, Mardy Street, Cardiff, we estimate a market value of £336,833 and a rental value of £2,360 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £298,338 and £2,090 per month respectively.
Energy Efficiency
18, Mardy Street, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 02 Jun 2011.
The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2007 13 properties similar to 18, Mardy Street, Cardiff have sold within a radius of 360 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th September 2025, was 86, Tudor Street, Cardiff, CF11 6AL, a freehold house which sold for £300,000.
Read more about house prices in CF11.
- Sold Sep 2025£300,000 | 5 Bed House86, Tudor Street, Cardiff, CF11 6AL86, Tudor Street, Cardiff, CF11 6AL
- Sold Sep 2025£310,000 | 4 Bed House41, Clare Road, Cardiff, CF11 6QP41, Clare Road, Cardiff, CF11 6QP
- Sold Apr 2025£350,000 | 5 Bed House4, Dinas Street, Cardiff, CF11 6QY4, Dinas Street, Cardiff, CF11 6QY
- Sold Jan 2025£265,000 | 4 Bed House77, Mardy Street, Cardiff, CF11 6QW77, Mardy Street, Cardiff, CF11 6QW
- Sold Jun 2021£325,000 | 5 Bed House83, Mardy Street, Cardiff, CF11 6QW83, Mardy Street, Cardiff, CF11 6QW
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £286,282, ranging from £238,768 to £348,975.
- 16 Mardy Street
3 Bed House | 5 m | Est. Value: £252,301
- 14 Mardy Street
4 Bed House | 10 m | Est. Value: £281,357
- 12 Mardy Street
4 Bed House | 16 m | Est. Value: £291,700
- 10 Mardy Street
4 Bed House | 20 m | Est. Value: £281,357
- 8 Mardy Street
4 Bed House | 25 m | Est. Value: £291,700
Location Comparison
Of the 116 addresses on Mardy Street, Cardiff, CF11, 18, Mardy Street, Cardiff comes out as the 2nd largest and the 19th most expensive in our analysis of the public data.
It is also £66k more expensive than the average property across the CF11 district.
More reading links
Schools Nearby
Public Transport Nearby
- Cardiff Central|500 m away
- Grangetown (Cardiff)|900 m away
- Ninian Park|1.1 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












