Our Data Sources
21, Heol Mynydd Bychan, Cardiff has 21 entries in the Land Registry , most recently in March 2025 and a single entry in the EPC database dated October 2018.
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 21, Heol Mynydd Bychan, Cardiff, we estimate a market value of £551,348 and a rental value of £1,829 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £488,337 and £1,620 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Heol Mynydd Bychan, Cardiff as measuring 280 m2.
That makes it the 7th largest plot in the postcode, where all 30 other houses have recorded plot data.
Energy Efficiency
21, Heol Mynydd Bychan, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 22 Oct 2018.
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 21, Heol Mynydd Bychan, Cardiff completed on 19th March 2025 at £525,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 9.1% over the period since March 2025.
- Sold Mar 2025£525,000
- Sold Aug 2004£246,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 21, Heol Mynydd Bychan, Cardiff have sold within a radius of 480 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 5th December 2025, was 23, Heol Mynydd Bychan, Cardiff, CF14 4NL, a freehold house which sold for £575,000.
Read more about house prices in CF14.
- Sold Dec 2025£575,000 | 4 Bed House23, Heol Mynydd Bychan, Cardiff, CF14 4NL23, Heol Mynydd Bychan, Cardiff, CF14 4NL
- Sold Jan 2023£478,000 | 4 Bed House17, Milestone Close, Cardiff, CF14 4NQ17, Milestone Close, Cardiff, CF14 4NQ
- Sold Dec 2019£391,000 | 4 Bed House47, Milestone Close, Cardiff, CF14 4NQ47, Milestone Close, Cardiff, CF14 4NQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 31 addresses on Heol Mynydd Bychan, Cardiff, CF14, 21, Heol Mynydd Bychan, Cardiff comes out as the 8th largest and the 7th most expensive in our analysis of the public data.
It is also £160k more expensive than the average property across the CF14 district.
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Schools Nearby
Public Transport Nearby
- 400mTy Glas
- 400mBirchgrove
- 1.0kmRhiwbina
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
