Interior Designer Salary: Hourly Rates and Annual Earnings in the UK

If you're an interior designer or considering a career in the field, understanding how your hourly rate translates into an annual salary is essential. This article looks at the available UK pay data, explains the conversion between hourly and yearly earnings, and highlights important considerations such as part-time work and London weighting.

What the Official Data Shows

The Office for National Statistics (ONS) Annual Survey of Hours and Earnings (ASHE) is the primary source for UK earnings benchmarks. However, the latest ASHE data (April 2025 provisional) does not include a specific breakdown for interior designers. The occupation may fall under broader Standard Occupational Classification (SOC) groups such as 2431 (Architects, town planners, surveyors) or 3422 (Interior and exhibition designers), but those groups were not part of the provided search results.

For context, ONS ASHE reports that median gross annual earnings for full-time employees across all occupations were £39,039 in April 2025, up from £37,439 in 2024. Median weekly earnings for full-time employees were £766.60, and median hourly earnings (excluding overtime) were £19.67. These figures give a general benchmark, but interior designer salaries can vary widely depending on experience, specialism, and whether you work in-house, for a practice, or freelance.

Hourly to Annual Conversion: The Basics

To convert an hourly rate to an annual salary, use the formula:

Annual salary ≈ hourly rate × hours per week × 52 weeks

For a typical full-time contract of 37.5 hours per week (common in many design roles), the multiplier is 1,950 hours per year. For example:

• At the National Living Wage of £12.21 per hour (for employees aged 21+ from April 2025), a 37.5-hour week gives an annual salary of approximately £24,784.50.
• At the median hourly rate of £19.67, the annual equivalent would be around £38,356.50.

If you work part-time, simply adjust the weekly hours. For instance, 20 hours per week at £19.67 per hour yields about £20,456.80 per year.

Part-Time vs Full-Time Considerations

ONS defines full-time as working more than 30 paid hours per week (or 25 for teaching professions). Many interior designers work part-time or freelance, which can affect both hourly rates and annual earnings. Part-time median weekly earnings in April 2025 were £280.00, but this is an average across all occupations. Freelance interior designers may charge higher hourly rates to compensate for gaps between projects and lack of paid leave.

London Weighting and Regional Differences

Salaries in London and the South East tend to be higher due to the cost of living. While no specific interior designer data is available, the Living Wage Foundation recommends a London Living Wage of £13.15 per hour (2024 rate) compared to £12.00 outside London. Employers may also offer a London weighting allowance on top of base pay. If you're comparing job offers, always check whether the salary includes London weighting or other allowances.

Overtime and Additional Pay

Interior designers may occasionally work overtime to meet project deadlines. Overtime pay is not always guaranteed, especially in salaried positions. The ASHE data on hourly earnings excludes overtime, so your actual hourly rate may be lower if you work unpaid extra hours. Always clarify overtime policy in your contract.

Using Our Tools

To quickly convert your hourly rate to annual salary, try our Hourly to Salary calculator. For more UK salary benchmarks across different occupations, visit our salary data page. You can also read related salary articles for guidance on negotiating pay and understanding your rights.

Key Takeaways

• No specific ONS ASHE figure exists for interior designers in the provided data, but general UK median earnings are £39,039 per year (full-time) or £19.67 per hour.
• Use the formula: annual salary ≈ hourly rate × hours per week × 52.
• Part-time and freelance work will affect annual earnings; adjust the hours accordingly.
• London weighting can significantly increase pay; check job adverts for details.
• Always verify your contract for overtime, holiday pay, and any salary sacrifice arrangements.

For the most up-to-date National Living Wage and National Minimum Wage rates, refer to GOV.UK guidance. Remember that ASHE figures are provisional and may be revised.