Noise Consultancy for Commercial Businesses & Private Clients
We provide expert noise assessments and mitigation advice to commercial business owners and private clients navigate noise-related challenges in planning and development.
Let’s hear about your projectFrom initial designs to submitting planning applications, we provide clear, practical advice to help you move through the process.
Design Advice
Noise Assessments for Planning
Mitigation Strategies and Planning Conditions
Our team delivers straightforward, understandable noise solutions to help keep your project on track.
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Our Services

Noise Assessment and Surveys for Planning Applications
Noise assessments and surveys evaluate the potential for impacts from existing noise sources on new noise sensitive receptors in the planning proposal (e.g. future residents) before submission. They also provide mitigation solutions to comply with current noise guidance – BS 8233:2014 and WHO – and local authority requirements.

Noise Impact Assessments
Noise impact assessments evaluate the potential for impacts from new noise sources in the planning proposal on existing and future noise sensitive receptors (usually residential) before submission. They also provide mitigation solutions to comply with current noise guidance and local authority and EHO requirements.

Mitigation & Design Recommendations
Expert guidance on acoustic design including glazing, ventilation, construction make-ups, to meet local authority requirements for indoor noise levels.
Case Studies

New Auto-Repair Centre – Conversion of Existing Commercial Building
Consultancy services provided:
- Site survey, background noise measurements – establish location of the nearest residential noise sensitive receptors (NSRs).
- Measure noise levels at existing site for use in SoundPLAN modelling of new site. Sources modelled included internal noise from the repair centre, car park and car wash areas, external ventilation plant for the workshops and paint booths.
- Produce noise impact assessment of proposed new auto-repair centre using BS 4142 methodology and mitigation strategies to meet local EHO noise criteria.
- Address planning conditions and produce noise impact assessment for mechanical plant based on final M&E designs for construction tender purposes.

Re-Location of an Aggregates Business
Consultancy services provided:
- Site survey, background noise measurements – establish location of the nearest residential noise sensitive receptors (NSRs).
- Measure noise levels at existing site to use in SoundPLAN modelling of new site. Sources modelled included stone crushing machines, screening machines, excavators and transportation HGVs.
- Work with architect on building construction make-ups and acoustic fence and earth bund fence mitigation designs to reduce plant noise levels at NSRs.
- Produce noise impact assessment using BS 4142 methodology and proposing mitigation strategies to meet local EHO noise criteria.
- Review and respond to environmental health office and local authority comments, with revisions of noise impact assessments and re-modelling where required.

Solar Farm and Battery Storage (BESS) Development
Consultancy services provided:
- Site survey, background noise measurements – establish location of the nearest residential noise sensitive receptors (NSRs). SoundPLAN modelling of sources and noise levels at NSRs.
- Initial feedback to inform layout designs and locations of various plant types including – string inverters, transformers, DNO Substations, battery storage units, and power conditioners.
- Review site layout, plant specifications and noise mitigation options with client designers to achieve optimum assessment levels before the submission of the noise impact assessment for the planning application.
- Review and respond to environmental health office and local authority comments, with revisions of noise impact assessment and provision of additional information where necessary.
Get in touch to discuss your specific requirements.

Why Walnut Acoustics?
With over 20 years of experience, Walnut Acoustics delivers bespoke noise and acoustic consultancy solutions tailored to meet your planning needs. Trusted by our clients, we produce the necessary information in a timely manner to help achieve successful planning applications.
Learn More About UsWhat Our Clients Say
Nick is extremely engaging and professional, he delivers nothing but high-quality advice. My experience with Nick and the team involved the preparation of a noise impact assessment which greatly helped to resolve a long-standing issue we were dealing with. Truly worth every penny.”
His service was nothing short of outstanding, and he guided and advised us every step of the way. We wouldn’t hesitate to recommended his services and would happily use Walnut Acoustics for our next project – Fantastic.”
We are extremely grateful for all the advice and assistance that was provided. I would recommend Walnut Acoustics without any hesitation. Nick, the acoustic consultant, was very professional and provided an excellent level of customer service.”
A quick response, knowledgeable and reliable consultants, comprehensive and understandable reports. I wish all my partners had the same level of professionalism and service delivery. Well done, Walnut Acoustics.”
Our Technical Expertise
We cover all the key noise standards, including BS 8233:2014 and BS 4142:2014+A1:2019, while also working with a wide range of other guidance and methodologies.
We use industry-leading software tools, including SoundPLAN, INSUL and high quality sound measuring equipment from Cirrus Research and Svantek to acquire robust noise data for our noise assessments.