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21, MARDY CRESCENT, CAERPHILLY, CF83 1PT - £170,000

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 MARDY CRESCENT is a midsized semi-detached house of 79m², built sometime between 1967 and 1975, which could now be worth an estimated £260,105. It was last sold for £170,000 in April 2019, which was around 27% above the average April 2019 semi-detached price in the Caerphilly local authority area. The most recent EPC inspection was November 2018, where the current energy rating was D, and the potential energy rating was C.

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21 MARDY CRESCENT Sold Prices

Land registry data shows one sale for 21 MARDY CRESCENT since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Caerphilly local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2019
18 APR
£170,000£133,631
up arrow
27% above HPI

What might 21 MARDY CRESCENT be worth now?

21 MARDY CRESCENT might now be worth an estimated £260,105.

This is based on house price inflation of 53%, between April 2019 and April 2026, for semi-detached 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 53% inflationary increase is applied to the most recent sale price for 21 MARDY CRESCENT of £170,000 on 18th April 2019. For the value to have increased from £170,000 to £260,105 over the seven years to April 2026, the following assumptions must hold true:

  • The value of 21 MARDY CRESCENT has moved in line with the HPI for semi-detached houses in the Caerphilly local authority area.
  • The April 2019 sale price of £170,000 represented a fair market value for the property.
  • The size, condition, and specification of 21 MARDY CRESCENT has not materially changed since April 2019.
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 MARDY CRESCENT?

21 MARDY CRESCENT is 79m² according to the EPC inspection conducted in November 2018. This puts it in the largest 50% of semi-detached houses in Caerphilly, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Caerphilly, and where 21 MARDY CRESCENT lies on this distribution: 51% of semi-detached houses are smaller than 21 MARDY CRESCENT, and 47% of semi-detached houses are larger. Note that EPC data is not available for all properties in Caerphilly.

21, MARDY CRESCENT, CAERPHILLY, CF83 1PT: Size of property relative to semi-detached houses in Caerphilly

21 MARDY CRESCENT: Plot

21 MARDY CRESCENT sits on a plot of roughly 0.075 of an acre, or 305m².

Where is 21 MARDY CRESCENT?

21 MARDY CRESCENT is located in CAERPHILLY, in the CF83 postcode district.

All property sales on MARDY CRESCENT

Most recent sales first:

Limited data available
2026
8 APR
£285,000
Full data available
2025
14 NOV
£305,000
Limited data available
2025
23 OCT
£275,000
Full data available
2025
21 JAN
£280,000
Full data available
2024
14 JUN
£235,000
Limited data available
2023
8 DEC
£145,000
Full data available
2023
24 NOV
£260,000
Full data available
2022
2 AUG
£270,000
Limited data available
2021
17 SEP
£250,000
Limited data available
2020
2 OCT
£260,000
Limited data available
2019
18 APR
£170,000
Full data available
2018
4 APR
£172,000
Full data available
2017
30 MAR
£137,000
Full data available
2017
24 MAR
£155,000
Full data available
2016
30 SEP
£161,000
Limited data available
2015
4 SEP
£160,000
Full data available
2012
6 JUL
£165,000
Limited data available
2011
28 NOV
£147,500
Full data available
2010
18 NOV
£174,950
Limited data available
2009
3 JUL
£132,500
Limited data available
2008
1 APR
£57,000
Full data available
2006
16 JUN
£138,000
Limited data available
2006
11 APR
£147,500
Full data available
2005
23 JUN
£172,000
Limited data available
2003
22 OCT
£85,000
Limited data available
2003
12 AUG
£81,500
Full data available
2000
20 APR
£77,500
Limited data available
2000
20 APR
£58,500
Full data available
1999
27 SEP
£55,000
Limited data available
1999
7 JUL
£65,950
Full data available
1999
21 JUN
£63,500
Limited data available
1999
29 APR
£69,950
Limited data available
1997
4 AUG
£58,000
Full data available
1996
11 SEP
£36,000
Full data available
1995
12 DEC
£616
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.
Source: Energy Performance of Buildings Data: England and Wales
Licence: Ordnance Survey and Royal Mail Copyright and Database Right Notice.
Licence: Open Government Licence v3.0.
Source: INSPIRE Polygons
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.
Licence: Open Government Licence v3.0.