How much is 12 William Street, Merthyr Tydfil, CF47 0RG worth?
Estimated value — October 2026
£164,000
Likely range £164,000 – £164,000
Latest recorded sale December 2009
34%
confidence
Low
Property details
Mid-terrace house
William Street · Merthyr Tydfil · CF47 0RG
Energy performance
Mains Gas (Not Community) · EPC 9191-2285-0000-2322-8461 · inspected October 2022
Address
- District
- Merthyr Tydfil
- County
- Merthyr Tydfil
Value over time
- Modelled value
- Recorded sale
- Today's estimate
Modelled by indexing this property's most recent recorded sale, month by month, against the UK House Price Index for its area and property type. Earlier sales are shown as recorded. Today's estimate also blends in the other valuation methods, so it can sit a little off the line.
View as a table
| Year | Modelled value | Recorded sale |
|---|---|---|
| 2009 | £89,500 | £89,500 |
| 2010 | £86,674 | — |
| 2011 | £84,088 | — |
| 2012 | £84,907 | — |
| 2013 | £86,289 | — |
| 2014 | £90,544 | — |
| 2015 | £92,425 | — |
| 2016 | £91,568 | — |
| 2017 | £96,470 | — |
| 2018 | £105,262 | — |
| 2019 | £118,029 | — |
| 2020 | £117,177 | — |
| 2021 | £135,805 | — |
| 2022 | £152,001 | — |
| 2023 | £149,891 | — |
| 2024 | £157,089 | — |
| 2025 | £152,112 | — |
| 2026 | £164,191 | — |
Sale history
Mortgage calculator
£779
Estimated monthly repayment
£147,600
Loan amount
£132,794
Total interest
£280,394
Total repayable
A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.
Related properties
- 24 William Street, Merthyr Tydfil, CF47 0RG£162,450 · 2025£171,000
- 40 William Street, Merthyr Tydfil, CF47 0RG£155,000 · 2023£168,000
- 16 William Street, Merthyr Tydfil, CF47 0RG£85,500 · 2016£151,000
- 15 William Street, Merthyr Tydfil, CF47 0RG£90,000 · 2014£168,000
- 33 William Street, Merthyr Tydfil, CF47 0RG£31,000 · 1998£171,000
- 5 William Street, Merthyr Tydfil, CF47 0RG£127,000 · 2026£134,000
- 37 William Street, Merthyr Tydfil, CF47 0RG£125,000 · 2026£129,000
- 6 William Street, Merthyr Tydfil, CF47 0RG£125,000 · 2025£130,000
- 21 William Street, Merthyr Tydfil, CF47 0RG£109,000 · 2022£125,000
- 28 William Street, Merthyr Tydfil, CF47 0RG£102,000 · 2021£130,000
About this property
12 William Street, Merthyr Tydfil, CF47 0RG is a mid-terrace house on William Street in Merthyr Tydfil. Stede's estimated value for October 2026 is £164,000. It is the average of 2 independent methods that re-index recorded sale prices to today. The confidence score is 34 out of 100 (low), based on how recent the most recent recorded sale is.
It last sold in December 2009 for £89,500. The current estimate is 83% higher than that price. The current owner has held it for about 17 years.
Its EPC energy-efficiency rating is band D (63 out of 100), with a potential of band B (81) after the recommended improvements. The certificate records a total floor area of 155 m² (1,668 sq ft). It was lodged in October 2022.
The modelled value is up 4% over the past year and up 28% over the past five years.
Among 10 nearby properties Stede tracks in the CF47 area, estimated values run from £125,000 to £171,000. This mid-terrace house's £164,000 sits toward the upper end of that range.
Common questions
How much is 12 William Street, Merthyr Tydfil, CF47 0RG worth?
Stede estimates 12 William Street, Merthyr Tydfil, CF47 0RG is worth £164,000 as of October 2026. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.
When did 12 William Street, Merthyr Tydfil, CF47 0RG last sell?
It last sold in December 2009 for £89,500.
What type of property is 12 William Street, Merthyr Tydfil, CF47 0RG?
It is recorded as a Mid-terrace house on William Street in the CF47 postcode area.
What is the EPC rating of 12 William Street, Merthyr Tydfil, CF47 0RG?
12 William Street, Merthyr Tydfil, CF47 0RG has an EPC energy-efficiency rating of band D (63 out of 100). Its potential rating after the recommended improvements is band B (81). The certificate records a floor area of 155 m² (1,668 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.
How reliable is this estimate?
The confidence score is 34 out of 100 (low), which reflects how recent the most recent recorded sale is rather than local market volatility. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.
How does Stede calculate this estimate?
Stede runs 2 independent methods that re-index this property's recorded sale prices to today using the House Price Index for its type and region, then takes the average. Full detail is on the methodology page.
How we calculated this
This estimate averages 2 valuation methods, each re-indexing recorded sale prices to today. The confidence score reflects how recent the most recent recorded sale is.
2
Valuation methods used
1
Recorded sales on file
2009
Most recent recorded sale