Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
186, Mortimer Avenue, Old St Mellons, CF3 6YF	21 Nov 2025	£290,000	71 m² 764 sqft	£4,084 £379	Semi-D
117, Mortimer Avenue, Old St Mellons, CF3 6YG -	26 Sep 2025	£287,500	71 m² 764 sqft	£4,049 £376	Terrace
166, Mortimer Avenue, Old St Mellons, CF3 6YF	04 Aug 2025	£289,950	71 m² 764 sqft	£4,083 £379	Semi-D
179, Mortimer Avenue, Old St Mellons, CF3 6YG	24 Jul 2025	£290,000	94 m² 1011 sqft	£3,085 £286	Semi-D
193, Mortimer Avenue, Old St Mellons, CF3 6YG -	18 Jul 2025	£285,000 B	94 m² 1011 sqft	£3,031 £281	Semi-D
93, Mortimer Avenue, Old St Mellons, CF3 6YG	21 May 2025	£307,000	99 m² 1065 sqft	£3,101 £288	Semi-D
118, Mortimer Avenue, Old St Mellons, CF3 6YF	30 Apr 2025	£340,000	90 m² 968 sqft	£3,777 £350	Detached
162, Mortimer Avenue, Old St Mellons, CF3 6YF	22 Apr 2025	£365,000 B	113 m² 1216 sqft	£3,230 £300	Detached
181, Mortimer Avenue, Old St Mellons, CF3 6YG -	14 Feb 2025	£317,500	99 m² 1065 sqft	£3,207 £297	Semi-D
106, Mortimer Avenue, Old St Mellons, CF3 6YF -	13 Feb 2025	£240,000	59 m² 635 sqft	£4,067 £377	Terrace
175, Mortimer Avenue, Old St Mellons, CF3 6YG	16 Dec 2024	£260,000	94 m² 1011 sqft	£2,765 £256	Semi-D
197, Mortimer Avenue, Old St Mellons, CF3 6YG	16 Dec 2024	£285,000 B	94 m² 1011 sqft	£3,031 £281	Semi-D
142, Mortimer Avenue, Old St Mellons, CF3 6YF -	10 Dec 2024	£325,000	90 m² 968 sqft	£3,611 £335	Detached
114, Mortimer Avenue, Old St Mellons, CF3 6YF -	29 Nov 2024	£100,000	78 m² 839 sqft	£1,282 £119	Detached
176, Mortimer Avenue, Old St Mellons, CF3 6YF -	04 Nov 2024	£306,000	99 m² 1065 sqft	£3,090 £287	Semi-D
185, Mortimer Avenue, Old St Mellons, CF3 6YG	31 Oct 2024	£260,000	94 m² 1011 sqft	£2,765 £256	Semi-D
126, Mortimer Avenue, Old St Mellons, CF3 6YF -	16 Oct 2024	£285,000	71 m² 764 sqft	£4,014 £372	Semi-D
187, Mortimer Avenue, Old St Mellons, CF3 6YG	07 Oct 2024	£265,000	94 m² 1011 sqft	£2,819 £261	Semi-D
101, Mortimer Avenue, Old St Mellons, CF3 6YG -	16 Sep 2024	£402,500	113 m² 1216 sqft	£3,561 £330	Detached
121, Mortimer Avenue, Old St Mellons, CF3 6YG	12 Jul 2024	£220,000 B	59 m² 635 sqft	£3,728 £346	Terrace
158, Mortimer Avenue, Old St Mellons, CF3 6YF -	28 Jun 2024	£270,000	71 m² 764 sqft	£3,802 £353	Semi-D
116, Mortimer Avenue, Old St Mellons, CF3 6YF	27 Mar 2024	£335,000 B	78 m² 839 sqft	£4,294 £398	Detached
177, Mortimer Avenue, Old St Mellons, CF3 6YG	26 Mar 2024	£275,000 B	94 m² 1011 sqft	£2,925 £271	Semi-D
95, Mortimer Avenue, Old St Mellons, CF3 6YG -	30 Nov 2023	£357,500	93 m² 1001 sqft	£3,844 £357	Detached
199, Mortimer Avenue, Old St Mellons, CF3 6YG -	13 May 2023	£289,950	99 m² 1065 sqft	£2,928 £272	Semi-D
110, Mortimer Avenue, Old St Mellons, CF3 6YF -	13 Apr 2023	£220,000	59 m² 635 sqft	£3,728 £346	Terrace
140, Mortimer Avenue, Old St Mellons, CF3 6YF -	15 Feb 2023	£369,950	113 m² 1216 sqft	£3,273 £304	Detached
136, Mortimer Avenue, Old St Mellons, CF3 6YF -	16 Dec 2022	£340,000	90 m² 968 sqft	£3,777 £350	Detached
171, Mortimer Avenue, Old St Mellons, CF3 6YG -	25 Nov 2022	£300,000	71 m² 764 sqft	£4,225 £392	Semi-D
139, Mortimer Avenue, Old St Mellons, CF3 6YG -	28 Oct 2022	£248,000	59 m² 635 sqft	£4,203 £390	Semi-D
186, Mortimer Avenue	£290,000 Nov-2025	71 764	4,084 379
117, Mortimer Avenue -	£287,500 Sep-2025	71 764	4,049 376
166, Mortimer Avenue	£289,950 Aug-2025	71 764	4,083 379
179, Mortimer Avenue	£290,000 Jul-2025	94 1011	3,085 286
193, Mortimer Avenue -	£285,000 B Jul-2025	94 1011	3,031 281
93, Mortimer Avenue	£307,000 May-2025	99 1065	3,101 288
118, Mortimer Avenue	£340,000 Apr-2025	90 968	3,777 350
162, Mortimer Avenue	£365,000 B Apr-2025	113 1216	3,230 300
181, Mortimer Avenue -	£317,500 Feb-2025	99 1065	3,207 297
106, Mortimer Avenue -	£240,000 Feb-2025	59 635	4,067 377
175, Mortimer Avenue	£260,000 Dec-2024	94 1011	2,765 256
197, Mortimer Avenue	£285,000 B Dec-2024	94 1011	3,031 281
142, Mortimer Avenue -	£325,000 Dec-2024	90 968	3,611 335
114, Mortimer Avenue -	£100,000 Nov-2024	78 839	1,282 119
176, Mortimer Avenue -	£306,000 Nov-2024	99 1065	3,090 287
185, Mortimer Avenue	£260,000 Oct-2024	94 1011	2,765 256
126, Mortimer Avenue -	£285,000 Oct-2024	71 764	4,014 372
187, Mortimer Avenue	£265,000 Oct-2024	94 1011	2,819 261
101, Mortimer Avenue -	£402,500 Sep-2024	113 1216	3,561 330
121, Mortimer Avenue	£220,000 B Jul-2024	59 635	3,728 346
158, Mortimer Avenue -	£270,000 Jun-2024	71 764	3,802 353
116, Mortimer Avenue	£335,000 B Mar-2024	78 839	4,294 398
177, Mortimer Avenue	£275,000 B Mar-2024	94 1011	2,925 271
95, Mortimer Avenue -	£357,500 Nov-2023	93 1001	3,844 357
199, Mortimer Avenue -	£289,950 May-2023	99 1065	2,928 272
110, Mortimer Avenue -	£220,000 Apr-2023	59 635	3,728 346
140, Mortimer Avenue -	£369,950 Feb-2023	113 1216	3,273 304
136, Mortimer Avenue -	£340,000 Dec-2022	90 968	3,777 350
171, Mortimer Avenue -	£300,000 Nov-2022	71 764	4,225 392
139, Mortimer Avenue -	£248,000 Oct-2022	59 635	4,203 390

The data above for Mortimer Avenue can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Mortimer Avenue, Old St Mellons is £3,485 sqm (£323 per sq ft), this is based on the Land Registry sold price of the 32 most recent sales.
The majority of homes in Old St Mellons are now selling for between £3,190 and £4,010 per square metre (£296 and £372 per square foot) , find out more in this local analysis of CF3 6 (Old St Mellons) house prices.
There are roughly 107 homes on Mortimer Avenue, we would have expected roughly 15 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 32 property sales in Mortimer Avenue, averaging roughly 8 home sales per year .
The average size of all the properties on Mortimer Avenue is 84 m2 (904 sqft).