How much is 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD worth?
Estimated value — November 2026
£218,000
Likely range £173,000 – £250,000Four in five similar homes sold within their range when we tested it.
Latest recorded sale November 1999
64%
confidence
Medium
Typically within 9% of the sale price
Property details
Semi-detached house
Heol Ynys Ddu · Caerphilly · CF83 1SD
Energy performance
Mains Gas · EPC 9358-1038-6217-7130-7984 · inspected March 2010
Address
- District
- Rhymney Valley
- County
- Mid Glamorgan
Value over time
- Modelled value
- Projected
- Likely range (80%)
- Today's estimate
Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from a recorded sale, and today it matches the likely range above.
View as a table
| Year | Modelled value | Likely range |
|---|---|---|
| 2000 | £54,281 | £47,285 – £64,892 |
| 2001 | £56,675 | £49,076 – £65,498 |
| 2002 | £71,272 | £61,099 – £82,025 |
| 2003 | £91,306 | £77,481 – £105,077 |
| 2004 | £116,018 | £97,525 – £134,237 |
| 2005 | £125,450 | £104,520 – £145,527 |
| 2006 | £130,727 | £108,238 – £151,269 |
| 2007 | £135,681 | £111,699 – £156,856 |
| 2008 | £121,333 | £99,150 – £140,373 |
| 2009 | £118,831 | £96,276 – £137,931 |
| 2010 | £115,366 | £92,859 – £134,018 |
| 2011 | £121,660 | £97,372 – £141,912 |
| 2012 | £115,992 | £92,893 – £135,469 |
| 2013 | £117,682 | £94,061 – £137,956 |
| 2014 | £126,207 | £100,840 – £148,497 |
| 2015 | £128,343 | £112,414 – £139,670 |
| 2016 | £129,515 | £112,441 – £141,656 |
| 2017 | £139,102 | £119,691 – £152,905 |
| 2018 | £149,636 | £127,601 – £165,306 |
| 2019 | £152,222 | £128,631 – £168,998 |
| 2020 | £162,169 | £135,785 – £180,931 |
| 2021 | £181,700 | £150,736 – £203,719 |
| 2022 | £203,869 | £167,554 – £229,693 |
| 2023 | £200,775 | £163,462 – £227,309 |
| 2024 | £208,714 | £168,315 – £237,442 |
| 2025 | £210,052 | £167,773 – £240,117 |
| 2026 | £218,000 | £173,000 – £250,000 |
Sale history
Mortgage calculator
£1,170
Estimated monthly repayment
£196,200
Loan amount
£225,007
Total interest
£421,207
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
- 8 Heol Ynys Ddu, Caerphilly, CF83 1SD£200,000 · 2025£212,000
- 4 Heol Ynys Ddu, Caerphilly, CF83 1SD£215,000 · 2023£235,000
- 2 Heol Ynys Ddu, Caerphilly, CF83 1SD£164,000 · 2019£212,000
- 14 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD£162,995 · 2019£238,000
- 16 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD£44,500 · 1995£214,000
- 6 Heol Ynys Ddu, Caerphilly, CF83 1SD£235,000 · 2022£248,000
- 11 Heol Ynys Ddu, Caerphilly, CF83 1SD£150,000 · 2007£272,000
- 37 Heol Ynys Ddu, Caerphilly, CF83 1SD£154,950 · 2006£268,000
- 54 Heol Ynys Ddu, Caerphilly, CF83 1SD£71,995 · 2001£267,000
- 18 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD£48,995 · 1995£245,000
About this property
1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD is a semi-detached house on Heol Ynys Ddu in Caerphilly, Mid Glamorgan. Stede's estimated value for November 2026 is £218,000. Four in five similar homes sold within their likely range when tested; for this property that range is £173,000 to £250,000. It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 119 similar homes in the same postcode sector (25%). The confidence score is 64 out of 100 (medium): estimates like this one are typically within 9% of the eventual sale price.
It last sold in November 1999 for £52,500. It has 2 sales on record, the earliest in 1995. The current estimate is 315% higher than that price. The current owner has held it for about 27 years.
Its EPC energy-efficiency rating is band C (71 out of 100). The certificate records a total floor area of 54 m² (581 sq ft). It was lodged in March 2010.
The modelled value is up 5% over the past year and up 22% over the past five years.
Among 10 nearby properties Stede tracks in the CF83 area, estimated values run from £212,000 to £272,000. This semi-detached house's £218,000 sits toward the lower end of that range.
Common questions
How much is 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD worth?
Stede estimates 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD is worth £218,000 as of November 2026, within a likely range of £173,000 to £250,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.
When did 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD last sell?
It last sold in November 1999 for £52,500. There are 2 sales on record, the earliest in 1995.
What type of property is 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD?
It is recorded as a Semi-detached house on Heol Ynys Ddu in the CF83 postcode area.
What is the EPC rating of 1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD?
1 Heol Ynys Ddu, Caerphilly, Rhymney Valley, Mid Glamorgan, CF83 1SD has an EPC energy-efficiency rating of band C (71 out of 100). The certificate records a floor area of 54 m² (581 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 64 out of 100 (medium). Tested against real sales of similar homes, estimates like this one are typically within 9% of the sale price, and four in five sold within their likely range. 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?
It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 119 similar homes in the same postcode sector (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.
How we got this figure
We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 19,418 real sales of similar homes.
- Recent price per m² in the same postcode sector, for its 54 m²£178,04350%
- Its sale in November 1999, brought up to today with the House Price Index£232,25625%
- 119 similar homes sold recently in the same postcode sector£282,28325%
Estimate £218,000, likely £173,000 – £250,000
Read the full methodology and data sources →