Property Data Search:

21, RHIWLAS, THORNHILL, CARDIFF, CF14 9AD - £315,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

21 RHIWLAS is a small detached house of 103m², which could now be worth an estimated £412,515. It was last sold for £315,000 in August 2018, which was around 20% below the average August 2018 detached price in the Cardiff local authority area. The most recent EPC inspection was October 2009, where the current energy rating was D, and the potential energy rating was C.

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21 RHIWLAS Sold Prices

Land registry data shows three sales for 21 RHIWLAS since 1st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. All of the three 21 RHIWLAS sales were for below the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2018
17 AUG
£315,000£395,023
down arrow
20% below HPI
2015
9 OCT
£280,000£346,974
down arrow
19% below HPI
2000
9 MAR
£130,000£130,814
down arrow
1% below HPI

21 RHIWLAS Price Paid vs. HPI Average

The below graph shows the average detached house price in the Cardiff local authority area over time, sourced from the HPI. The three 21 RHIWLAS sales between March 2000 and August 2018 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the October 2015 sale was for 19% below the HPI. So the extrapolation line tracks at 19% below the HPI over time, until the August 2018 sale, where it falls to 20% below the HPI. The line then continues to track at 20% below the HPI.

21, RHIWLAS, THORNHILL, CARDIFF, CF14 9AD: Price paid vs HM Land Registry's House Price Index

What might 21 RHIWLAS be worth now?

21 RHIWLAS might now be worth an estimated £412,515.

This is based on house price inflation of 31%, between August 2018 and June 2025, for detached houses, in the Cardiff local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 31% inflationary increase is applied to the most recent sale price for 21 RHIWLAS of £315,000 on 17th August 2018. For the value to have increased from £315,000 to £412,515 over the seven years and two months to June 2025, the following assumptions must hold true:

  • The value of 21 RHIWLAS has moved in line with the HPI for detached houses in the Cardiff local authority area.
  • The August 2018 sale price of £315,000 represented a fair market value for the property.
  • The size, condition, and specification of 21 RHIWLAS has not materially changed since August 2018.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 21 RHIWLAS?

21 RHIWLAS is 103m² according to the EPC inspection conducted in October 2009. This puts it in the smallest 30% of detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cardiff, and where 21 RHIWLAS lies on this distribution: 30% of detached houses houses are smaller than 21 RHIWLAS, and 70% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

21, RHIWLAS, THORNHILL, CARDIFF, CF14 9AD: Size of property relative to detached houses houses in Cardiff

21 RHIWLAS: Plot and Title Map

21 RHIWLAS sits on a plot of roughly 0.063 of an acre, or 255m². The below map shows the location of 21 RHIWLAS, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 21 RHIWLAS). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

21, RHIWLAS, THORNHILL, CARDIFF, CF14 9AD: Plot and title map

Where is 21 RHIWLAS?

21 RHIWLAS is located in THORNHILL, in the CF14 postcode district. The below map shows the position of No. 21 on RHIWLAS.

21, RHIWLAS, THORNHILL, CARDIFF, CF14 9AD: Location map and indicative extent of plot

All property sales on RHIWLAS

Most recent sales first:

Full data available
2024
6 DEC
£285,000
Full data available
2024
15 MAR
£250,000
Full data available
2022
13 OCT
£241,000
Full data available
2022
21 JAN
£235,300
Full data available
2021
11 OCT
£280,000
Full data available
2021
2 JUL
£317,500
Limited data available
2020
8 OCT
£250,000
Full data available
2019
31 OCT
£177,500
Full data available
2018
17 AUG
£315,000
Limited data available
2018
5 APR
£179,950
Limited data available
2017
19 MAY
£172,000
Full data available
2015
9 OCT
£280,000
Full data available
2015
27 JUL
£275,000
Full data available
2013
1 NOV
£153,000
Full data available
2012
31 AUG
£199,950
Full data available
2008
20 MAR
£170,000
Limited data available
2007
4 MAY
£206,000
Limited data available
2006
6 NOV
£199,000
Full data available
2006
10 APR
£180,000
Limited data available
2004
21 MAY
£142,000
Full data available
2003
19 SEP
£119,000
Full data available
2003
8 SEP
£157,250
Full data available
2003
21 FEB
£116,000
Full data available
2002
17 OCT
£137,950
Full data available
2001
4 DEC
£88,500
Full data available
2000
9 MAR
£130,000
Full data available
1999
17 DEC
£69,000
Full data available
1999
22 NOV
£76,000
Limited data available
1999
1 JUL
£78,000
Full data available
1998
4 DEC
£63,500
Full data available
1998
27 NOV
£26,500
Limited data available
1998
22 APR
£55,000
Limited data available
1997
1 AUG
£69,950
Full data available
1997
21 JUN
£59,950
Limited data available
1996
20 SEP
£55,000
Limited data available
1996
17 JAN
£64,250
Limited data available
1995
10 MAR
£65,500
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2025 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2025 Ordnance Survey 100026316. Conditions of use.