12 Grawen Terrace, Merthyr Tydfil, CF47 8TH is a freehold terraced property built between 1900-1929. The property offers approximately 409 square feet of living space. In this location, properties of similar size usually have one bedroom.

The estimated current market value of the property is £65,286 , which equates to approximately £160 per square foot. It was last sold on 13 Apr 2012 for £35,000. Since then, the value has increased by £30,286, representing a 86.5% increase, or approximately 6.1% per year.

The current estimated value of £65,286 is:

  • 26.3% lower than the average property price on Grawen Terrace
  • 26.8% lower than the average in the CF47 8TH postcode area
  • and 64.6% lower than the average price for Merthyr Tydfil as a whole

Based on EPC inspection history, this property has been mostly rented (2 out of 3 inspections). This suggests the property has often been rented out, which may indicate use as an investment or buy-to-let.

At the most recent EPC inspection on 6 February 2026, the property was recorded as rented.

View sold house prices in CF47 8TH

Building approximate location

About Property

Type
Terraced House
Built
1900-1929
Interior Size
409 sq ft
Tenure
Freehold
Price (estimate)
£65,286
Price Per sq ft (estimate)
£160
Bedroom Count (estimate)
1 bedroom

EPC Summary

12 Grawen Terrace, Merthyr Tydfil, CF47 8TH has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 6 Feb 2026.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are high performance glazing.

The previous EPC assessment was conducted on 17 Jan 2023, when the property was rated D. Since then, the rating has improved to C, with the energy efficiency score increasing by 10.3%.

Since the previous assessment, several changes were observed:

  • The wall construction or insulation changed from sandstone or limestone, as built, no insulation (assumed) to sandstone, with internal insulation, improving energy efficiency from poor to good.
  • The windows were upgraded from fully double glazed to high performance glazing.
  • The lighting was updated from low energy lighting in all fixed outlets to good lighting efficiency, with efficiency changing from very good to good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 300 mm loft insulation
Very Good
Walls
Sandstone, with internal insulation
Good
Windows
High performance glazing
Good
Lighting
Good lighting efficiency
Good

Compared to CF47 8TH

11 th / 14
Price Rank
27% lower than average
12 th / 13
Size Rank
34% smaller than average
6 th / 13
Price Per Sq FT Rank
11% higher than average

Sale History

Today
£65,286
streetscan.co.uk estimate
+87 %
13 Apr 2012
£35,000
Freehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

rooms: 2
size: 409 sq ft
sale price: £111,000
sale date: 12 Apr 2023
rooms: 2
size: 463 sq ft
sale price: £43,000
sale date: 17 Jun 2016

Data Sources

The property at 12 Grawen Terrace, Merthyr Tydfil, CF47 8TH appears once in HM Land Registry records, with the transaction recorded on 13 Apr 2012. It also has four Energy Performance Certificate (EPC) records, the earliest dating back to 6 Feb 2026. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.