Our Data Sources
18, Williamstown, Merthyr Tydfil has 21 entries in the Land Registry, most recently in July 2015 and a single entry in the EPC database dated October 2014.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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, Williamstown, Merthyr Tydfil, we estimate a market value of £145,911 and a rental value of £832 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £129,235 and £737 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Williamstown, Merthyr Tydfil as measuring 68 m2.
That makes it the largest plot in the postcode, where 17 of the 20 other houses have recorded plot data.
Energy Efficiency
18, Williamstown, Merthyr Tydfil has an Energy Performance Rating (EPC) of G. This is based on the most recent assessment, dated 17 Oct 2014.
The property is not connected to mains gas and has fully double glazed windows. It is heated using portable electric heaters assumed for most rooms.
Sold Prices
The most recent sale of 18, Williamstown, Merthyr Tydfil completed on 20th July 2015 at £50,000 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 64.3% over the period since July 2015.
- Sold Jul 2015£50,000
- Sold Oct 1999£22,000
Similar Properties Sold Nearby
Since 2008 84 properties similar to 18, Williamstown, Merthyr Tydfil have sold within a radius of 810 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 7th October 2025, was 3, Saxon Street, Merthyr Tydfil, CF47 8SP, a freehold house which sold for £94,000.
Read more about house prices in CF47.
- Sold Oct 2025£94,000 | 3 Bed House3, Saxon Street, Merthyr Tydfil, CF47 8SP3, Saxon Street, Merthyr Tydfil, CF47 8SP
- Sold Aug 2025£136,000 | 3 Bed House2, Dane Street, Merthyr Tydfil, CF47 8SE2, Dane Street, Merthyr Tydfil, CF47 8SE
- Sold Jun 2025£122,500 | 3 Bed House7, Pleasant View, Merthyr Tydfil, CF47 8TD7, Pleasant View, Merthyr Tydfil, CF47 8TD
- Sold Dec 2023£126,000 | 3 Bed House7, Stuart Street, Merthyr Tydfil, CF47 8SA7, Stuart Street, Merthyr Tydfil, CF47 8SA
- Sold Sep 2023£125,000 | 3 Bed House7, Tydfil Terrace, Merthyr Tydfil, CF47 8SY7, Tydfil Terrace, Merthyr Tydfil, CF47 8SY
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 £173,087, ranging from £130,180 to £225,382.
- 20 Williamstown
3 Bed House | 14 m | Est. Value: £130,180
- 25 Riverside Park
2 Bed House | 18 m | Est. Value: £182,813
- 21 Williamstown
3 Bed House | 20 m | Est. Value: £151,204
- 26 Riverside Park
3 Bed House | 22 m | Est. Value: £225,382
- 14 Williamstown
3 Bed House | 31 m | Est. Value: £146,352
Location Comparison
Of the 20 addresses on Williamstown, Merthyr Tydfil, CF47, 18, Williamstown, Merthyr Tydfil comes out as the 16th largest and the 16th most expensive in our analysis of the public data.
It is also £16k less expensive than the average property across the CF47 district.
More reading links
Schools Nearby
Public Transport Nearby
- Merthyr Tydfil|1.2 km away
- Pentre-Bach|3.5 km away
- Troed-y-rhiw|5.3 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.
