Colchester Avenue - CF23 9AZ
Key Postcode Insights
CF23 9AZ is a residential postcode situated on Colchester Avenue, Penylan, Cardiff, CF23 with 27 addresses.
It ranks as the 526th largest and 696th most expensive of the 821 postcodes in the CF23 area. The most common property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 27 properties: 23 houses and 4 flats.
- Ave. Sale Price
- £549,635
- 10 Year change
- up 32.8%
- Ave. Rental Price
- £1,731pcm
- 10 Year change
- up 61.9%
- Ave. £ per ft²
- £352/ft²
- Ave. Gross Yield
- 3.8%/year/yr
Key Postcode Insights
CF23 9AZ is a residential postcode situated on Colchester Avenue, Penylan, Cardiff, CF23 with 27 addresses.
It ranks as the 526th largest and 696th most expensive of the 821 postcodes in the CF23 area. The most common property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 27 properties: 23 houses and 4 flats.
- Ave. Sale Price
- £549,635
- 10 Year change
- up 32.8%
- Ave. Rental Price
- £1,731pcm
- 10 Year change
- up 61.9%
- Ave. £ per ft²
- £352/ft²
- Ave. Gross Yield
- 3.8%/year/yr
Explore Propertiesin CF23 9AZ
- 62 Colchester Avenue
Building  |  4 Flats
- 64 Colchester Avenue
4 Bed Early-century House
- 66 Colchester Avenue
Unknown
- 68 Colchester Avenue
Unknown
- 70 Colchester Avenue
Unknown
Sales Market Trends
The last sale in CF23 9AZ sold for £515,000 on 28th January 2026. Since then prices are up an average of 2.4%.
The current average value in the postcode is £549,635.
The CF23 9AZ Sales Market has increased by 32.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 0.7% | £549,635 |
| June 2025 | 0.8% | £546,071 |
| June 2024 | 3.1% | £541,854 |
| June 2023 | 0.6% | £525,569 |
| June 2022 | 8.7% | £522,202 |
| June 2021 | 5.5% | £480,613 |
| June 2020 | 3.6% | £455,633 |
| June 2019 | 2.4% | £440,003 |
| June 2018 | 3.3% | £429,715 |
| June 2017 | 0.5% | £415,958 |
| June 2016 | 6.3% | £413,808 |
| June 2015 | 5.4% | £389,144 |
| June 2014 | 4.9% | £369,187 |
| June 2013 | 0.1% | £351,805 |
| June 2012 | -0.2% | £351,349 |
| June 2011 | -0.9% | £352,181 |
| June 2010 | 6.7% | £355,207 |
| June 2009 | -9.3% | £333,008 |
| June 2008 | -5.2% | £366,974 |
| June 2007 | 0% | £387,219 |
Rental Market Trends
The current average rental value in the postcode is £1,731.
The CF23 9AZ Rental Market has increased by 61.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.6% | £1,731pcm |
| June 2025 | 3.7% | £1,687pcm |
| June 2024 | 7.9% | £1,627pcm |
| June 2023 | 11% | £1,508pcm |
| June 2022 | 10.5% | £1,358pcm |
| June 2021 | 6% | £1,230pcm |
| June 2020 | 3.1% | £1,161pcm |
| June 2019 | 1% | £1,126pcm |
| June 2018 | 1.8% | £1,115pcm |
| June 2017 | 2.5% | £1,095pcm |
| June 2016 | 3.9% | £1,069pcm |
| June 2015 | 3.1% | £1,029pcm |
| June 2014 | 2.7% | £998pcm |
| June 2013 | 2.1% | £972pcm |
| June 2012 | 1.3% | £952pcm |
| June 2011 | 0.9% | £940pcm |
| June 2010 | 3% | £931pcm |
| June 2009 | -1.8% | £904pcm |
| June 2008 | 0.9% | £921pcm |
| June 2007 | 0% | £913pcm |
Sales History
The last sale was on 28th January 2026 for £515,000 and since then the market in the area has increased by 2.4%. The postcode has had a total of 32 sales since 1995.
CF23 9AZ has seen 4 sales in the last three years and 2 sales in the last twelve months.
- Sold Jan 2026£515,000 | 4 Bed House92, Colchester Avenue, Cardiff, CF23 9AZ92, Colchester Avenue, Cardiff, CF23 9AZ
- Sold Aug 2025£480,000 | 4 Bed House84, Colchester Avenue, Cardiff, CF23 9AZ84, Colchester Avenue, Cardiff, CF23 9AZ
- Sold Apr 2025£700,000 | 4 Bed House88, Colchester Avenue, Cardiff, CF23 9AZ88, Colchester Avenue, Cardiff, CF23 9AZ
- Sold May 2024£690,000 | 4 Bed House88, Colchester Avenue, Cardiff, CF23 9AZ88, Colchester Avenue, Cardiff, CF23 9AZ
- Sold Dec 2022£505,000 | 4 Bed House106, Colchester Avenue, Cardiff, CF23 9AZ106, Colchester Avenue, Cardiff, CF23 9AZ
Nearby Postcodes
CF23 9AZ is the 526th largest and the 696th most expensive postcode out of the 821 postcodes in the CF23 area.
- CF23 9AT, Melrose Avenue, Penylan, Cardiff, CF23CF23 9AT28 Addresses|64 m away
- CF23 9BG, Waterloo Road, Penylan, Cardiff, CF23CF23 9BG6 Addresses|79 m away
- CF23 9NY, Colchester Avenue, Penylan, Cardiff, CF23CF23 9NY9 Addresses|87 m away
- CF23 9AX, Colchester Avenue, Penylan, Cardiff, CF23CF23 9AX15 Addresses|87 m away
- CF23 9AS, Melrose Avenue, Penylan, Cardiff, CF23CF23 9AS22 Addresses|94 m away
Property Types
- 3 mid-century houses built between 1936 and 1979
- 1 house of an unknown age
- 9 early-century houses built between 1912 and 1935
- 14 other addresses of unknown type
- mid-century house (3)
- house (1)
- early-century house (9)
- Unknown (14)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 16 properties.
- The most common rating is C.
- A (0)
- E (2)
- B (0)
- F (1)
- C (7)
- G (0)
- D (6)
- No EPC (11)
Top 3 Most Expensive Sales
- Sold Apr 2025£700,000 | 4 Bed House88, Colchester Avenue, Cardiff, CF23 9AZ88, Colchester Avenue, Cardiff, CF23 9AZ
- Sold May 2024£690,000 | 4 Bed House88, Colchester Avenue, Cardiff, CF23 9AZ88, Colchester Avenue, Cardiff, CF23 9AZ
- Sold Jul 2022£635,000 | 5 Bed House43, Colchester Avenue, Cardiff, CF23 9AX43, Colchester Avenue, Cardiff, CF23 9AX
Schools Nearby
Public Transport Nearby
The closest station to CF23 9AZ is Cathays station, which is 1.9 kilometres away.
- Cathays|1.9 km away
- Cardiff Queen Street|2.1 km away
- Heath Low Level|2.7 km away
- Heath High Level|2.7 km away
