Our Data Sources
21, Gelli Deg, Cardiff has no records in the Land Registry and a single entry in the EPC database dated March 2026.
We combine this information with public data 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
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, Gelli Deg, Cardiff, we estimate a market value of £407,015 and a rental value of £1,816 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £360,499 and £1,608 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Gelli Deg, Cardiff as measuring 289 m2.
That makes it the 4th largest plot in the postcode, where 21 of the 23 other houses have recorded plot data.
Energy Efficiency
21, Gelli Deg, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Mar 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2013 199 properties similar to 21, Gelli Deg, Cardiff have sold within a radius of 630 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 1st May 2026, was 16, Cwm Nofydd, Cardiff, CF14 6JX, a freehold house which sold for £335,000.
Read more about house prices in CF14.
- Sold May 2026£335,000 | 3 Bed House16, Cwm Nofydd, Cardiff, CF14 6JX16, Cwm Nofydd, Cardiff, CF14 6JX
- Sold Apr 2026£450,000 | 4 Bed House6, Heol Uchaf, Cardiff, CF14 6SP6, Heol Uchaf, Cardiff, CF14 6SP
- Sold Mar 2026£340,000 | 3 Bed House12, Cwm Nofydd, Cardiff, CF14 6JX12, Cwm Nofydd, Cardiff, CF14 6JX
- Sold Oct 2025£290,000 | 3 Bed House17, Clos Mabon, Cardiff, CF14 6RN17, Clos Mabon, Cardiff, CF14 6RN
- Sold Jul 2025£420,000 | 3 Bed House50, Heol Uchaf, Cardiff, CF14 6SQ50, Heol Uchaf, Cardiff, CF14 6SQ
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 £336,534, ranging from £185,189 to £620,406.
- 19 Gelli Deg
4 Bed House | 12 m | Est. Value: £453,515
- 15 Gelli Deg
3 Bed House | 26 m | Est. Value: £369,124
- 13 Gelli Deg
3 Bed House | 32 m | Est. Value: £345,828
- 9 Gelli Deg
3 Bed House | 44 m | Est. Value: £375,228
- 8 Wenallt Court
2 Bed Flat | 45 m | Est. Value: £187,873
Location Comparison
Of the 23 addresses on Gelli Deg, Cardiff, CF14, 21, Gelli Deg, Cardiff comes out as the 7th largest and the 13th most expensive in our analysis of the public data.
It is also £16k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Rhiwbina|1.0 km away
- Whitchurch (Cardiff)|1.1 km away
- Birchgrove|1.3 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.
