Over the past 7 years, there have been 75 property sales recorded in the CF3 6YF postcode area. The highest sale price reached £369,950, while the most recent sale was for a semi-detached house sold in August 2025 for £289,950.

The estimated average property value in CF3 6YF currently stands at £313,149, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £3,737.

Property prices in CF3 6YF have risen by 3.8% over the past year , with a total increase of 23.8% over the past five years, and a long-term rise of 52% over the past decade.

The most common type of property sold in the area is semi-detached, making up around 45% of transactions , followed by detached and terraced.

Housing in CF3 6YF is mixed, with 100% of homes being , indicating a diverse residential makeup.

Click on the map to change the analyzed area

Property Sales

100 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£399,636
streetscan.co.uk estimate
7 Jun 2018
£296,995
More details

102 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 764 sq ft
Today
£306,859
streetscan.co.uk estimate
25 May 2018
£219,995
More details

104 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£241,445
streetscan.co.uk estimate
28 Sep 2018
£178,500
More details

106 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£243,074
streetscan.co.uk estimate
13 Feb 2025
£240,000
29 Jun 2018
£189,995
More details

108 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£253,806
streetscan.co.uk estimate
26 Nov 2021
£218,500
29 Jun 2018
£189,995
More details

110 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£231,959
streetscan.co.uk estimate
13 Apr 2023
£220,000
27 Jul 2018
£179,995
More details

112 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 764 sq ft
Today
£299,073
streetscan.co.uk estimate
29 Jun 2018
£214,995
More details

114 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 840 sq ft
Today
£102,196
streetscan.co.uk estimate
29 Nov 2024
£100,000
7 Jul 2021
£296,000
View +1 more
More details

116 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 840 sq ft
Today
£352,559
streetscan.co.uk estimate
27 Mar 2024
£335,000
29 Jun 2018
£264,995
More details

118 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£339,668
streetscan.co.uk estimate
30 Apr 2025
£340,000
29 Jun 2018
£282,500
More details

120 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£380,131
streetscan.co.uk estimate
1 Jun 2018
£282,500
More details

122 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£396,648
streetscan.co.uk estimate
31 May 2018
£294,000
More details

124 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£310,047
streetscan.co.uk estimate
29 Jun 2018
£224,995
More details

126 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£292,687
streetscan.co.uk estimate
16 Oct 2024
£285,000
31 May 2018
£224,995
More details

128 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£293,075
streetscan.co.uk estimate
25 Feb 2022
£262,000
28 Sep 2018
£217,995
More details

130 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£310,047
streetscan.co.uk estimate
29 Jun 2018
£224,995
More details

132 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£288,824
streetscan.co.uk estimate
29 Jul 2022
£270,000
28 Sep 2018
£219,995
More details

134 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£291,555
streetscan.co.uk estimate
10 Jun 2022
£270,000
29 Jun 2018
£212,000
More details

136 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£346,773
streetscan.co.uk estimate
16 Dec 2022
£340,000
26 Mar 2021
£270,000
View +1 more
More details

138 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£380,131
streetscan.co.uk estimate
29 Jun 2018
£282,500
More details

140 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£379,588
streetscan.co.uk estimate
15 Feb 2023
£369,950
29 Jun 2018
£296,995
More details

142 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£333,467
streetscan.co.uk estimate
10 Dec 2024
£325,000
29 Jun 2018
£282,500
More details

144 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 969 sq ft
Today
£380,131
streetscan.co.uk estimate
29 Jun 2018
£282,500
More details

146 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 764 sq ft
Today
£299,543
streetscan.co.uk estimate
17 Aug 2018
£219,995
More details

148 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£248,627
streetscan.co.uk estimate
25 Sep 2020
£193,000
31 Aug 2018
£179,995
More details

150 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 635 sq ft
Today
£243,467
streetscan.co.uk estimate
28 Sep 2018
£179,995
More details

152 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Terraced
🛏️ bed
📐 764 sq ft
Today
£306,028
streetscan.co.uk estimate
29 Jun 2018
£219,995
More details

154 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1098 sq ft
Today
£403,673
streetscan.co.uk estimate
29 Jun 2018
£299,995
More details

156 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1001 sq ft
Today
£384,834
streetscan.co.uk estimate
29 Jun 2018
£285,995
More details

158 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£284,385
streetscan.co.uk estimate
28 Jun 2024
£270,000
3 Dec 2018
£214,995
More details

160 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£297,308
streetscan.co.uk estimate
8 Dec 2021
£260,000
29 Jun 2018
£224,995
More details

162 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£364,644
streetscan.co.uk estimate
22 Apr 2025
£365,000
29 Jun 2018
£328,000
More details

164 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£296,402
streetscan.co.uk estimate
16 Nov 2018
£219,995
More details

166 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£290,515
streetscan.co.uk estimate
4 Aug 2025
£289,950
29 Jun 2018
£219,995
More details

168 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£400,689
streetscan.co.uk estimate
29 May 2018
£296,995
More details

170 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1001 sq ft
Today
£386,853
streetscan.co.uk estimate
29 Jun 2018
£287,495
More details

172 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1001 sq ft
Today
£390,217
streetscan.co.uk estimate
29 Jun 2018
£289,995
More details

174 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1066 sq ft
Today
£319,707
streetscan.co.uk estimate
9 Mar 2021
£259,995
More details

176 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1066 sq ft
Today
£312,692
streetscan.co.uk estimate
4 Nov 2024
£306,000
7 Dec 2020
£253,000
More details

178 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£288,095
streetscan.co.uk estimate
25 Oct 2019
£219,995
More details

180 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£289,577
streetscan.co.uk estimate
30 Aug 2019
£220,000
More details

182 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£271,889
streetscan.co.uk estimate
5 Dec 2019
£210,000
More details

184 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£296,152
streetscan.co.uk estimate
30 Aug 2019
£224,995
More details

186 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£302,740
streetscan.co.uk estimate
29 Aug 2019
£230,000
More details

188 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 764 sq ft
Today
£302,967
streetscan.co.uk estimate
20 Sep 2022
£290,000
30 Aug 2019
£230,000
More details

190 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£302,353
streetscan.co.uk estimate
29 Jun 2022
£280,000
2 Sep 2019
£217,995
More details

192 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£279,059
streetscan.co.uk estimate
31 Jul 2020
£214,995
More details

90 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Detached
🛏️ bed
📐 1216 sq ft
Today
£383,994
streetscan.co.uk estimate
18 Oct 2019
£299,995
More details

92 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1066 sq ft
Today
£336,387
streetscan.co.uk estimate
21 Dec 2018
£250,000
More details

94 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1066 sq ft
Today
£336,387
streetscan.co.uk estimate
20 Dec 2018
£250,000
More details

96 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£303,157
streetscan.co.uk estimate
29 Jun 2018
£219,995
More details

98 Mortimer Avenue, Old St Mellons, Cardiff, CF3 6YF

🏠 Semi-detached
🛏️ bed
📐 1012 sq ft
Today
£295,627
streetscan.co.uk estimate
21 Sep 2018
£219,995
More details

Area Insights

Data Sources

Properties at CF3 6YF appear seventy-five times in the Land Registry records, with the latest transaction recorded on 4 Aug 2025. It also has fifty-two Energy Performance Certificates (EPC) entries, the earliest dating back to 19 Jun 2018. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.