Speedwell Close is in Pontprennau, Cardiff and in Cardiff district. CF23 8QF is located in the Pontprennau and Old St Mellons electoral ward, within the English Parliamentary constituency of Cardiff North. This postcode has been in use since 2006-11-01.
StreetScan combines information about Speedwell Close, Pontprennau, Cardiff, CF23 8QF and displays a report on the quality of life in this place and its surroundings.
Nearby postcodes are: CF23 8QG, CF23 8XJ, CF23 8NY, CF23 8NW, CF23 8XR, CF23 8NX, CF23 8NQ, CF23 8NP, CF23 8NN.
In the UK, the overall gender distribution is approximately 49% male and 51% female. However, the area surrounding CF23 8QF, has a female population slightly higher than UK average, with 53.1% of residents being female. Several factors can contribute to this. Women generally live longer than men, resulting in a higher proportion of women in neighborhoods with significant elderly populations. Typically, as people grow older, they tend to relocate from city center addresses to suburban areas, smaller towns, and rural locations. Consequently, these areas often have a higher number of females. A higher female population can also be found in areas with industries that employ more women, such as healthcare, education, and retail.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Female | 51.3% | 53.1% | 1.8% | 51.0% | 2.1% |
| Male | 48.7% | 46.9% | -1.8% | 49.0% | -2.1% |
Across the UK, the average relationship status breakdown is roughly 44% married, 38% single, 9% divorced, 6% widowed, and 2% separated.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Single | 38.1% | 41% | 2.9% | 37.9% | 3.1% |
| Married: Opposite sex | 54.2% | 48.9% | -5.3% | 44.2% | 4.7% |
| Married: Same sex | 1.2% | 0% | -1.2% | 0.3% | -0.3% |
| Separated | 1.8% | 0% | -1.8% | 2.2% | -2.2% |
| Divorced | 4.2% | 6.9% | 2.7% | 9.1% | -2.2% |
| Widowed | 0.6% | 3.2% | 2.6% | 6.1% | -2.9% |
Across the UK, the average 48.4% rated their health as Very Good, 33.6% as Good, 12.7% as Fair, 4% as Bad, and 1.2% as Very Bad.
Population age significantly impacts residents' health. Additionally, socioeconomic status plays a crucial role: higher income levels and lower poverty rates are linked to better health outcomes. Affluent areas benefit from higher living standards, access to private healthcare, and healthier lifestyle choices.
This area has a high percentage of residents reporting their health as Good or Very Good (92.7%) compared to the average (82%). This typically indicates either a younger population or more affluent area.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Very good health | 65.7% | 70.2% | 4.5% | 48.4% | 21.8% |
| Good health | 28% | 22.5% | -5.5% | 33.6% | -11.1% |
| Fair health | 5.1% | 6.2% | 1.1% | 12.7% | -6.5% |
| Bad health | 0.8% | 1.1% | 0.3% | 4.0% | -2.9% |
| Very bad health | 0.4% | 0% | -0.4% | 1.2% | -1.2% |
During the 2021 census, the educational qualifications of residents across the UK were as follows: 18.2% had no qualifications, 9.6% had 1-4 GCSEs, 13.4% had 5 or more GCSEs and 1-2 A/AS Levels, 16.9% had 2 or more A Levels, 33.8% held a degree (or equivalent), and 5.4% had completed an apprenticeship.
In the area around CF23 8QF this area, 6.8% of residents have no qualifications. This is significantly lower than the UK average of 18.2%. This area stands out for its high percentage of residents with higher education degree or similar. The UK average is 33.8%, while in this area it is 51.1%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 5.4% | 6.8% | 1.4% | 18.2% | -11.4% |
| 1-4 GCSEs or Equivalent | 7.7% | 5.3% | -2.4% | 9.6% | -4.3% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 8.9% | 14.2% | 5.3% | 13.4% | 0.8% |
| Apprenticeship | 3% | 3.2% | 0.2% | 5.3% | -2.1% |
| HNC, HND or 2+ A Levels | 8.3% | 17.4% | 9.1% | 16.9% | 0.5% |
| Degree or Similar | 61.3% | 51.1% | -10.2% | 33.8% | 17.3% |
| Other | 5.4% | 2.1% | -3.3% | 2.8% | -0.7% |
This area closely mirrors the overall ethnic composition of the UK, with 88.1% of the population identifying as white, with UK average of 81.4%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Chinese | 1.3% | 0.4% | -0.9% | 0.7% | -0.3% |
| Indian | 8.1% | 6.7% | -1.4% | 3.1% | 3.6% |
| Pakistani | 2.1% | 1.1% | -1.0% | 2.7% | -1.6% |
| Other Asian | 2.5% | 0.4% | -2.1% | 1.6% | -1.2% |
| Black African | 1.7% | 0% | -1.7% | 2.5% | -2.5% |
| Other Black | 1.3% | 0% | -1.3% | 0.5% | -0.5% |
| Mixed White and Asian | 0.4% | 0% | -0.4% | 0.8% | -0.8% |
| Mixed White and Caribbean | 0% | 1.1% | 1.1% | 0.9% | 0.2% |
| Mixed Other | 0% | 1.5% | 1.5% | 0.8% | 0.7% |
| White | 81.4% | 88.1% | 6.7% | 81.4% | 6.7% |
| Arab | 1.3% | 0% | -1.3% | 0.6% | -0.6% |
| Other | 0% | 0.7% | 0.7% | 1.6% | -0.9% |
In this area, 87.6% of the population were born in the United Kingdom, which is similar to the UK average of 83.2%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| United Kingdom | 81.8% | 87.6% | 5.8% | 83.2% | 4.4% |
| European Union | 5.1% | 3.6% | -1.5% | 6.1% | -2.5% |
| Rest of Europe | 0% | 0.4% | 0.4% | 0.8% | -0.4% |
| Africa | 1.7% | 0% | -1.7% | 2.7% | -2.7% |
| Middle East and Asia | 8.9% | 7.3% | -1.6% | 5.6% | 1.7% |
| The Americas and the Caribbean | 2.5% | 1.1% | -1.4% | 1.3% | -0.2% |
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Born in the UK | 81.4% | 86.6% | 5.2% | 83.2% | 3.4% |
| 10+ Years | 1.3% | 7.6% | 6.3% | 9.8% | -2.2% |
| 5-10 Years | 1.7% | 4.3% | 2.6% | 2.9% | 1.4% |
| 2-5 Years | 6.4% | 0.7% | -5.7% | 2.2% | -1.5% |
| Less than 2 years | 9.3% | 0.7% | -8.6% | 1.9% | -1.2% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 88.7% | 76.7% | 12.0% |
| Ireland | 0.7% | 0.6% | 0.1% |
| Spain | 0.4% | 0.4% | 0.0% |
| Poland | 1.1% | 1.3% | -0.2% |
| Romania | 3.3% | 0.9% | 2.4% |
| Other EU countries | 0.4% | 1.5% | -1.1% |
| Eastern Asia | 0.4% | 0.3% | 0.1% |
| Southern Asia | 0.4% | 1.2% | -0.8% |
| North America and the Caribbean | 0.4% | 0.3% | 0.1% |
| No passport held | 4.4% | 13.5% | -9.1% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 39.9% | 37.2% | 2.7% |
| Christian | 41.7% | 46.2% | -4.5% |
| Buddhist | 0.7% | 0.5% | 0.2% |
| Hindu | 5.4% | 1.7% | 3.7% |
| Muslim | 5.1% | 6.5% | -1.4% |
| Other religion | 0.7% | 0.6% | 0.1% |
| Not answered | 6.5% | 6.0% | 0.5% |
Over the last 12 months, the overall crime rate around Speedwell Close was 28.0 per 1,000 residents, which is 64.3% lower than the Pontprennau and Old St Mellons average. The most reported crime type was Violence and sexual offences.
Speedwell Close has the 8th lowest crime rate of 66 local areas in Pontprennau and Old St Mellons and the 247th lowest crime rate of 1,028 local areas in Cardiff .
Violent and sexual offences accounted for around 20.0 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has fallen by about -61.9%.

Households in this area have a higher level of wealth to the average household in England and Wales. 75% of analyzed areas in England and Wales have lower average household annual income than this area.

| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| 1 Speedwell Close, Cardiff, Cardiff Detached, an established residential building | £565,000 | 2025-10-06 | £565,000 |
| 23 Speedwell Close, Cardiff, Cardiff Terraced, an established residential building | £305,000 | 2025-09-19 | £305,000 |
| 9 Speedwell Close, Cardiff, Cardiff Detached, an established residential building | £445,000 | 2022-12-01 | £453,865 |
| 15 Speedwell Close, Cardiff, Cardiff Detached, an established residential building | £500,000 | 2022-09-23 | £521,916 |
| 2 Speedwell Close, Cardiff, Cardiff Detached, an established residential building | £362,500 | 2019-12-13 | £459,406 |
CF23 8QF area has a low unemployment rate. According to Census 2021, 2% residents of this area were unemployed, while the average in the UK was 4.83%. A low level of unemployment in an area indicates a strong job market, where most people who are seeking work can find employment. This generally reflects a healthy economy in the area.
The percentage of student residents living in CF23 8QF area is much higher than the country's average. Usually places with high percentage of students are near Universities and near entertainment places.
| Full-Time Employee | 103 |
| Part-Time Employee | 26 |
| Self-Employed | 19 |
| Full-Time Student (with or without job) | 12 |
| Student (economically inactive) | 10 |
| Looking after home or family | 9 |
| Retired | 8 |
| Unemployed | 4 |
| Other | 1 |
| Long-Term Sick or disabled | 0 |
| Human health and social work activities | 31 |
| Education | 27 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 15 |
| Public administration and defence; compulsory social security | 11 |
| Financial and insurance activities | 10 |
| Professional, scientific and technical activities | 10 |
| Other | 8 |
| Information and communication | 7 |
| Construction | 7 |
| Accommodation and food service activities | 6 |
| Manufacturing | 5 |
| Real estate activities | 4 |
| Transport and storage | 3 |
| Electricity, gas, steam and air conditioning supply | 3 |
| Administrative and support service activities | 2 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Glan-Yr-Afon Primary Browing Close , Llanrumney CF3 5NJ | - not rated | 746 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| St Cadoc's Primary School Shaw Close , Llanrumney CF3 5NX | - not rated | 801 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Bryn Celyn Primary School Bryn Celyn , Pentwyn CF23 7ES | - not rated | 940 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| The Hollies Special School Bryn Heulog , Pentwyn CF23 7XG | - not rated | 957 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| St Bernadette's R.C. Primary School Bryn Heulog , Off Pentwyn Drive CF23 7JB | - not rated | 1,036 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
School statistics for this postcode are based on Ofsted rankings.
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Elior Uk Limited | Babcock Fire Services, Cardiff Gate Training And Development Centre Church Road, Old St Mellons | 465 yd | |
| Compass At Asda | Cardiff Gate Retail Park Dering Road, Pontprennau | 541 yd | |
| McDonalds | 1, Cardiff Gate Retail Park Dering Road, Pontprennau | 565 yd | |
| Costa Ltd | Costa Coffee Ltd, Cardiff Gate Retail Park Dering Road, Pontprennau | 628 yd | |
| The Phoenix Kitchen | John Reynolds Centre Shaw Close, Llanrumney | 722 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| The Unicorn Inn | Unicorn Inn Church Road, Old St Mellons | 537 yd | |
| The Village Inn | Village Inn Croescadarn Road, Pontprennau | 574 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Subway | Cardiff Gate Retail Park Dering Road, Pontprennau | 541 yd | |
| Llanrumney Takeaway Limited | First And Second Floor, 187 Burnham Avenue, Llanrumney | 760 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Waitrose | Waitrose Croescadarn Close, Pontprennau | 465 yd | |
| Asda Stores Ltd | Asda Supermarket, Cardiff Gate Retail Park Dering Road, Pontprennau | 628 yd | |
| Spar Supermarket | 2 Heol Booths, Old St Mellons | 825 yd | |
| Waitrose | Welcome Break Service Station Junction 30 M4 Malthouse Avenue, Pontprennau | 1,079 yd | |
| Farmfoods | Unit 1, Pentwyn Retail Park Pentwyn Road, Pentwyn | 1,093 yd |
This statistics are based on Active Places Data - Contains Data © Sport England
| Percentage of premises that have Superfast Broadband (30Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have Ultrafast Broadband (100Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have Ultrafast Broadband (300Mbit/s or greater) coverage from fixed broadband | 100.0% |
| Percentage of premises that have coverage from a Gigabit capable service from fixed broadband | 100.0% |
| Percentage of premises unable to receive 2Mbit/s | 0.0% |
| Percentage of premises unable to receive 5Mbit/s | 0.0% |
| Percentage of premises unable to receive 10Mbit/s | 0.0% |
| Percentage of premises unable to receive 30Mbit/s | 0.0% |
| Median download speed | 160 Mbit/s |
| Average download speed | 328 Mbit/s |
| Minimum download speed | 1000 Mbit/s |
| Maximum download speed | 1000 Mbit/s |
| Median upload speed | 30 Mbit/s |
| Average upload speed | 36.2 Mbit/s |
| Maximum upload speed | 115 Mbit/s |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.