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20, HEOL MAERDY, CAERPHILLY, CF83 3PZ - £100,000

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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.

20 HEOL MAERDY is a very small extended terraced house of 67m², built sometime between 1976 and 1982, which could now be worth an estimated £142,521. It was last sold for £100,000 in September 2020, which was around 16% below the average September 2020 terraced price in the Caerphilly local authority area. The most recent EPC inspection was March 2020, where the current energy rating was D, and the potential energy rating was B.

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20 HEOL MAERDY Sold Prices

Land registry data shows two sales for 20 HEOL MAERDY since 1st January 1995. The below table shows the price paid for the two sales, along with the average terraced price in the Caerphilly local authority area for the corresponding sale date. One of the two 20 HEOL MAERDY sales was for below the average price, whilst the other was for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2020
25 SEP
£100,000£118,500
down arrow
16% below HPI
2004
6 JAN
£93,000£65,136
up arrow
43% above HPI

20 HEOL MAERDY Price Paid vs. HPI Average

The below graph shows the average terraced house price in the Caerphilly local authority area over time, sourced from the HPI. The two 20 HEOL MAERDY sales from January 2004 and September 2020 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 January 2004 sale was for 43% above the HPI. So the extrapolation line tracks at 43% above the HPI over time, until the September 2020 sale, where it falls to 16% below the HPI. The line then continues to track at 16% below the HPI.

20, HEOL MAERDY, CAERPHILLY, CF83 3PZ: Price paid vs HM Land Registry's House Price Index

What might 20 HEOL MAERDY be worth now?

20 HEOL MAERDY might now be worth an estimated £142,521.

This is based on house price inflation of 42.5%, between September 2020 and May 2026, for terraced houses, in the Caerphilly local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 42.5% inflationary increase is applied to the most recent sale price for 20 HEOL MAERDY of £100,000 on 25th September 2020. For the value to have increased from £100,000 to £142,521 over the six years and four months to May 2026, the following assumptions must hold true:

  • The value of 20 HEOL MAERDY has moved in line with the HPI for terraced houses in the Caerphilly local authority area.
  • The September 2020 sale price of £100,000 represented a fair market value for the property.
  • The size, condition, and specification of 20 HEOL MAERDY has not materially changed since September 2020.
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 20 HEOL MAERDY?

20 HEOL MAERDY is 67m², which includes one extension, according to the EPC inspection conducted in March 2020. This puts it in the smallest 10% of terraced houses houses in Caerphilly, based on EPC data. The below chart shows the distribution of terraced houses houses by size in Caerphilly, and where 20 HEOL MAERDY lies on this distribution: 4% of terraced houses houses are smaller than 20 HEOL MAERDY, and 95% of houses are larger. Note that EPC data is not available for all properties in Caerphilly.

20, HEOL MAERDY, CAERPHILLY, CF83 3PZ: Size of property relative to terraced houses in Caerphilly

20 HEOL MAERDY: Plot and Title Map

20 HEOL MAERDY sits on a plot of roughly 0.054 of an acre, or 217m². The below map shows the location of 20 HEOL MAERDY, 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 20 HEOL MAERDY). 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.

20, HEOL MAERDY, CAERPHILLY, CF83 3PZ: Plot and title map

Where is 20 HEOL MAERDY?

20 HEOL MAERDY is located in CAERPHILLY, in the CF83 postcode district. The below map shows the position of No. 20 on HEOL MAERDY.

20, HEOL MAERDY, CAERPHILLY, CF83 3PZ: Location map and indicative extent of plot

All property sales on HEOL MAERDY

Most recent sales first:

Limited data available
2025
16 MAY
£197,500
Full data available
2025
11 APR
£218,000
Full data available
2024
19 JUL
£217,500
Full data available
2023
31 AUG
£176,500
Full data available
2023
13 JAN
£151,000
Full data available
2021
8 JUN
£160,000
Full data available
2020
25 SEP
£100,000
Limited data available
2019
11 JAN
£78,000
Full data available
2018
7 NOV
£132,500
Full data available
2018
21 SEP
£180,000
Limited data available
2016
9 DEC
£120,000
Limited data available
2016
22 JAN
£125,000
Full data available
2014
24 JUN
£91,000
Full data available
2013
20 DEC
£117,500
Full data available
2013
8 FEB
£127,500
Full data available
2012
20 JAN
£100,000
Full data available
2010
20 AUG
£113,000
Limited data available
2007
5 JUL
£133,500
Limited data available
2007
15 JUN
£210,000
Limited data available
2007
2 MAR
£134,000
Limited data available
2007
5 JAN
£131,995
Full data available
2006
17 OCT
£96,000
Limited data available
2006
31 AUG
£104,000
Full data available
2005
16 DEC
£125,000
Full data available
2004
7 OCT
£91,000
Full data available
2004
6 JAN
£93,000
Full data available
2002
16 SEP
£79,250
Full data available
2002
26 JUN
£46,950
Full data available
1999
19 NOV
£55,950
Limited data available
1999
7 MAY
£42,000
Full data available
1998
29 APR
£36,500
Full data available
1997
19 DEC
£33,500
Limited data available
1997
31 JUL
£38,000
Limited data available
1997
31 JUL
£41,950
Full data available
1997
28 JAN
£41,500
Limited data available
1996
2 SEP
£41,000
Limited data available
1996
22 MAR
£33,000
Full data available
1995
1 DEC
£33,995
Full data available
1995
10 MAR
£51,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. 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 2026. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2026 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 2026 Ordnance Survey 100026316. Conditions of use.