Our Data Sources
18, Berthwin Street, Cardiff has 31 entries in the Land Registry, most recently in June 2007 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 18, Berthwin Street, Cardiff would be worth £735,232, with a potential rental value of £3,458 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £651,205, with a rental value of £3,063 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
18, Berthwin Street, Cardiff occupies a 199 m2 plot as recorded by HM Land Registry.
Of the 19 other houses in this postcode, 17 have recorded plot sizes, and this one ranks as the 2nd largest.
Sold Prices
18, Berthwin Street, Cardiff last changed hands on 29th June 2007, selling for £630,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has dropped by 28.9% since June 2007.
- Sold Jun 2007£630,000
- Sold Jul 2003£450,000
- Sold Nov 1995£155,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 93 sales of comparable properties within 510 metres of 18, Berthwin Street, Cardiff since 2017.
Most recently, 29, Plasturton Avenue, Cardiff, CF11 9HL, a freehold house, sold at £540,000 on the 1st August 2025.
Read more about house prices in CF11.
- Sold Aug 2025£540,000 | 5 Bed House29, Plasturton Avenue, Cardiff, CF11 9HL29, Plasturton Avenue, Cardiff, CF11 9HL
- Sold Jul 2025£725,000 | 5 Bed House34, Plasturton Avenue, Cardiff, CF11 9HH34, Plasturton Avenue, Cardiff, CF11 9HH
- Sold May 2025£630,000 | 4 Bed House100, Plasturton Avenue, Cardiff, CF11 9HJ100, Plasturton Avenue, Cardiff, CF11 9HJ
- Sold Jan 2025£710,000 | 4 Bed House49, Plasturton Avenue, Cardiff, CF11 9HL49, Plasturton Avenue, Cardiff, CF11 9HL
- Sold Aug 2024£645,000 | 5 Bed House23, Pontcanna Street, Cardiff, CF11 9HQ23, Pontcanna Street, Cardiff, CF11 9HQ
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 £719,348, ranging from £587,028 to £1,058,102.
- 12 Berthwin Street
4 Bed House | 16 m | Est. Value: £588,080
- 10 Berthwin Street
4 Bed House | 23 m | Est. Value: £587,028
- 8 Berthwin Street
5 Bed House | 27 m | Est. Value: £717,388
- 6 Berthwin Street
4 Bed House | 33 m | Est. Value: £673,754
- 17 Berthwin Street
4 Bed House | 33 m | Est. Value: £696,125
Location Comparison
Our analysis of the public data ranks 18, Berthwin Street, Cardiff as the 6th largest and the 5th most expensive of the 22 addresses on Berthwin Street, Cardiff, CF11.
Against the CF11 postcode district average, it is £450k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Cathays|1.3 km away
- Ninian Park|1.3 km away
- Cardiff Central|1.8 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












