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21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG

How much is 21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG worth?

Estimated value — November 2026

£299,000

Likely range £245,000 – £364,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale February 1997

65%

confidence

High

Typically within 9% of the sale price

Property details

Detached house

Nant Twyn Harris · Hengoed · CF82 7DG

Address

District
Caerphilly
County
Caerphilly
See house prices in CF82 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£100k£200k£300k£400k20002002200420062008201020122014201620182020202220242026£299,000

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
Modelled value at the end of each year, with any recorded sales
YearModelled valueLikely range
2000£83,737£71,590 – £97,102
2001£87,939£74,554 – £102,663
2002£108,687£91,409 – £127,602
2003£133,777£111,883 – £157,113
2004£165,415£137,717 – £194,416
2005£176,975£146,472 – £208,488
2006£181,467£149,054 – £214,908
2007£189,968£155,104 – £225,679
2008£170,632£138,554 – £203,949
2009£166,168£135,054 – £199,374
2010£163,890£133,125 – £197,767
2011£173,371£140,900 – £210,639
2012£164,562£133,821 – £200,167
2013£166,638£149,465 – £187,309
2014£178,532£159,040 – £201,994
2015£182,441£161,406 – £207,761
2016£185,680£163,134 – £212,818
2017£197,870£172,633 – £228,248
2018£213,080£184,598 – £247,363
2019£215,004£184,949 – £251,181
2020£231,742£197,929 – £272,443
2021£258,403£219,117 – £305,691
2022£286,521£241,206 – £341,066
2023£281,770£235,482 – £337,487
2024£292,103£242,329 – £352,016
2025£291,721£240,226 – £353,705
2026£299,000£245,000 – £364,000

Sale history

1997Sold
£69,500
2026Today — estimated
+330%£299,000

Mortgage calculator

£1,605

Estimated monthly repayment

£269,100

Loan amount

£308,610

Total interest

£577,710

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

About this property

21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG is a detached house on Nant Twyn Harris in Hengoed, Caerphilly. Stede's estimated value for November 2026 is £299,000. Four in five similar homes sold within their likely range when tested; for this property that range is £245,000 to £364,000. It combines its own last sale brought up to date with the House Price Index (75%) and recent sales of 53 similar homes in the same postcode sector (25%). The confidence score is 65 out of 100 (high): estimates like this one are typically within 9% of the eventual sale price.

It last sold in February 1997 for £69,500. The current estimate is 330% higher than that price. The current owner has held it for about 29 years.

The modelled value is up 3% over the past year and up 19% over the past five years.

Among 10 nearby properties Stede tracks in the CF82 area, estimated values run from £259,000 to £367,000. This detached house's £299,000 sits toward the lower end of that range.

Common questions

How much is 21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG worth?

Stede estimates 21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG is worth £299,000 as of November 2026, within a likely range of £245,000 to £364,000. 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 21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG last sell?

It last sold in February 1997 for £69,500.

What type of property is 21 Nant Twyn Harris, Ystrad Mynach, Hengoed, Caerphilly, CF82 7DG?

It is recorded as a Detached house on Nant Twyn Harris in the CF82 postcode area.

How reliable is this estimate?

The confidence score is 65 out of 100 (high). 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 its own last sale brought up to date with the House Price Index (75%) and recent sales of 53 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 26,680 real sales of similar homes.

  • Its sale in February 1997, brought up to today with the House Price Index£292,50775%
  • 53 similar homes sold recently in the same postcode sector£317,91525%

Estimate £299,000, likely £245,000 – £364,000

Read the full methodology and data sources →