A noise and vibration consultant is an Institute of Acoustics (IOA) member who assesses the impact of noise and vibration on and from development. Noise assessments are required by planning authorities for development in noise-sensitive locations - including sites near roads, railways, airports, industrial uses and entertainment venues - and for development likely to generate significant noise. The consultant surveys existing noise levels, models the impact of the proposed development, and advises on mitigation measures to meet planning requirements and Building Regulations Part E.
What they do
- Carry out environmental noise surveys using calibrated sound level meters
- Prepare noise impact assessments for planning applications
- Carry out BS 4142 industrial and commercial noise assessments
- Assess construction noise and vibration using BS 5228
- Prepare Construction Noise and Vibration Management Plans
- Advise on acoustic glazing, ventilation and sound insulation specifications
- Discharge noise planning conditions
- Provide expert witness reports for planning appeals and licensing hearings
When you need one
A noise assessment is typically required whenever development is in a noise-sensitive location or is likely to generate noise that affects nearby residents or businesses.
Typical costs (UK, 2025)
| Service | Typical cost |
|---|---|
| Environmental noise survey | £500 - £1,500 |
| Noise impact assessment report | £800 - £2,500 |
| Construction noise and vibration assessment (BS 5228) | £600 - £1,800 |
| BS 4142 industrial noise assessment | £700 - £2,000 |
| Noise condition discharge evidence | £400 - £900 |
| Expert witness report | £800 - £3,000 |
| Hourly rate | £75 - £130 / hr |
Costs vary by the scope and duration of the survey programme required. Some planning authorities require noise monitoring over extended periods including bank holidays.
Qualifications to look for
The primary professional qualification for noise and vibration consultants in the UK. The IOA sets professional standards, offers accredited training programmes and maintains a member directory. Check membership at ioa.org.uk.
Noise consultants typically hold degrees in acoustics, physics or engineering. The IOA offers graduate and postgraduate diplomas in acoustics for those without acoustic degrees.
How to find a reputable noise consultant
Frequently asked questions
What is a BS 4142 assessment?
A British Standard method for assessing whether industrial or commercial noise is likely to have an adverse impact on those living nearby. The assessment compares the rating level of specific noise from the source with the background noise level. A difference of +10 dB or more indicates that complaints are likely. BS 4142 is widely used in planning applications for industrial, commercial and change of use development near residential areas.
When is a noise assessment required for planning?
The NPPF requires planning authorities to avoid noise that would give rise to significant adverse impacts. Noise assessments are typically required for development in noise-sensitive locations (near roads, railways, airports, pubs or industrial areas) or for development likely to generate significant noise, such as industrial premises, entertainment venues, schools and some commercial developments.
What noise level is acceptable for residential development near a road?
WHO guidelines recommend a maximum of 53 dB LAeq,16h at bedroom facades to avoid significant annoyance from road traffic noise during daytime. The NPPG provides a noise exposure category framework for new dwellings near roads: below 55 dB LAeq is generally acceptable; 55-63 dB requires mitigation; above 63 dB is generally unacceptable. Local planning authorities may apply their own standards.