Average Construction and building trades supervisors Salary in Cardiff / Caerdydd
ONS ASHE 2025 · Wales region · Updated October 2025
How Cardiff / Caerdydd compares
Based on 2025 data, construction and building trades supervisorss in the Wales earned £39,106 at the median — 13.1% below the national benchmark of £45,000. The cost of living in the Wales is 10.0% below the UK average, so a salary of £39,106 has an effective purchasing power closer to £43,451. To put this alongside local pay more broadly: the average across all jobs in Cardiff / Caerdydd is £33,599, so construction and building trades supervisorss sit 16.4% more that benchmark.
Cost of Living Adjustment
After adjusting for the regional cost of living (Wales index: 90, UK=100), a salary of £39,106 has an effective purchasing power of approximately £43,451 — equivalent to earning that amount in an area with average UK costs. The cost of living in the Wales is 10.0% below the UK average.
Construction and building trades supervisors salary across UK regions
Construction and building trades supervisors salary in areas near Cardiff / Caerdydd
Salary data is by ONS region. Cardiff / Caerdydd is in the Wales region. Below are neighbouring regions — click to explore salaries there.
Construction and building trades supervisors Salary Guide
The full salary guide includes regional breakdowns, cost-of-living adjustments, year-on-year trends, and in-depth FAQs.
Read the full Construction and building trades supervisors salary guide →Find Construction and building jobs in Cardiff / Caerdydd
Explore roles paying around £39,106/year
Frequently Asked Questions
What is the average construction and building trades supervisors salary in Cardiff / Caerdydd?
The median construction and building trades supervisors salary in the Wales (which includes Cardiff / Caerdydd) is £39,106 per year, based on ONS ASHE 2025 data. The mean salary is typically higher due to top earners pulling the average up.
How does construction and building trades supervisors pay in Cardiff / Caerdydd compare to the UK average?
Construction and building trades supervisors in the Wales earn 13.1% below the national median of £45,000. Other regions such as London and the South East typically offer higher salaries for this role.
Is construction and building trades supervisors a well-paid job in Cardiff / Caerdydd compared to other roles?
The average salary across all jobs in Cardiff / Caerdydd is £33,599. Construction and building trades supervisors in the Wales earn £39,106, which is 16.4% above the local average across all occupations.
About this data
Salary figures for construction and building trades supervisorss cover the Wales region. The all-jobs average is specific to Cardiff / Caerdydd. Source: ONS ASHE 2025. Methodology.