Property Data Search:

3, TRELAWNEY AVENUE, RUMNEY, CARDIFF, CF3 3JQ - £348,950

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.

3 TRELAWNEY AVENUE is a midsized extended detached house of 117m², built sometime between 1967 and 1975, which could now be worth an estimated £357,315. It was last sold for £348,950 in October 2024, which was around 32% below the average October 2024 detached price in the Cardiff local authority area. The most recent EPC inspection was August 2018, where the current energy rating was D, and the potential energy rating was C.

3 TRELAWNEY AVENUE Sold Prices

Land registry data shows two sales for 3 TRELAWNEY AVENUE since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. Both of the two 3 TRELAWNEY AVENUE 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
2024
25 OCT
£348,950£510,490
down arrow
32% below HPI
2018
14 DEC
£214,000£397,247
down arrow
46% below HPI

3 TRELAWNEY AVENUE 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 two 3 TRELAWNEY AVENUE sales from December 2018 and October 2024 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 December 2018 sale was for 46% below the HPI. So the extrapolation line tracks at 46% below the HPI over time, until the October 2024 sale, where it rises to 32% below the HPI. The line then continues to track at 32% below the HPI.

3, TRELAWNEY AVENUE, RUMNEY, CARDIFF, CF3 3JQ: Price paid vs HM Land Registry's House Price Index

What might 3 TRELAWNEY AVENUE be worth now?

3 TRELAWNEY AVENUE might now be worth an estimated £357,315.

This is based on house price inflation of 2.4%, between October 2024 and February 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 2.4% inflationary increase is applied to the most recent sale price for 3 TRELAWNEY AVENUE of £348,950 on 25th October 2024. For the value to have increased from £348,950 to £357,315 over the one year and eight months to February 2025, the following assumptions must hold true:

  • The value of 3 TRELAWNEY AVENUE has moved in line with the HPI for detached houses in the Cardiff local authority area.
  • The October 2024 sale price of £348,950 represented a fair market value for the property.
  • The size, condition, and specification of 3 TRELAWNEY AVENUE has not materially changed since October 2024.
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 3 TRELAWNEY AVENUE?

3 TRELAWNEY AVENUE is 117m², which includes one extension, according to the EPC inspection conducted in August 2018. This puts it in the smallest 50% 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 3 TRELAWNEY AVENUE lies on this distribution: 45% of detached houses houses are smaller than 3 TRELAWNEY AVENUE, and 54% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

3, TRELAWNEY AVENUE, RUMNEY, CARDIFF, CF3 3JQ: Size of property relative to detached houses houses in Cardiff

3 TRELAWNEY AVENUE: Plot and Title Map

3 TRELAWNEY AVENUE sits on a plot of roughly 0.074 of an acre, or 301m². The below map shows the location of 3 TRELAWNEY AVENUE, 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 3 TRELAWNEY AVENUE). 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.

3, TRELAWNEY AVENUE, RUMNEY, CARDIFF, CF3 3JQ: Plot and title map

Where is 3 TRELAWNEY AVENUE?

3 TRELAWNEY AVENUE is located in RUMNEY, in the CF3 postcode district. The below map shows the position of No. 3 on TRELAWNEY AVENUE.

3, TRELAWNEY AVENUE, RUMNEY, CARDIFF, CF3 3JQ: Location map and indicative extent of plot

All property sales on TRELAWNEY AVENUE

Most recent sales first:

Full data available
2024
25 OCT
£348,950
Full data available
2018
14 DEC
£214,000
Limited data available
2018
7 DEC
£233,000
Limited data available
2018
15 JUN
£200,000
Full data available
2017
17 MAR
£206,000
Limited data available
2016
31 OCT
£281,000
Limited data available
2015
3 MAR
£190,000
Full data available
2013
8 MAY
£130,000
Limited data available
2012
3 FEB
£217,000
Limited data available
2010
20 AUG
£215,000
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.