• Noise from Waste Transfer Station – London

    Noise from Waste Transfer Station – London         

  • Large mixed-use scheme – One Tower Bridge

    Large mixed-use scheme – One Tower Bridge         

  • New Hotel – Heathrow Airport

    New Hotel – Heathrow Airport         

  • New residential village for Berkeley Homes

    New residential village for Berkeley Homes         

  • New Container Distribution Hub – Felixstowe

    New Container Distribution Hub – Felixstowe         

  • New Skills Academy – Bristol

    New Skills Academy – Bristol         

  • New Chapel and Crematorium – Milton Keynes

    New Chapel and Crematorium – Milton Keynes         

  • New Leisure Centre – Nottingham

    New Leisure Centre – Nottingham         

  • New Office Block – London

    New Office Block – London         

“Very proactive and extremely helpful, especially with technical queries. I would not hesitate to recommend and will certainly be using them again in the future.”



Under CDM2015 regs we have found CASS ALLEN to exercise a level of professionalism and due diligence which is second to none. We would therefore definitely recommend CASS ALLEN as our preferred acoustic consultant, for all of our projects.’


SF - Taylor Wimpey South Thames

“I was very pleased with their technical knowledge and professional approach when dealing with a very awkward purchaser as well as the local authority.”


JH, Telford Homes

“Cass Allen went above and beyond to help with the Acoustic planning performance and conditions regarding the Greenwich Creekside project…”


LM, Capita plc

“Good comprehensive reports and advice at all design stages. Very flexible and professional, provided attendance at acoustic cladding tests at short notice.”


DF, Berkeley Homes

“Cass Allen have assisted us on a number of our projects. I’ve been impressed with their thorough and professional approach.”


MT, Lark Energy

Architectural & Environmental Acousticians

Noise & Vibration Engineers

Cass Allen GDPR Statement

Your data will be held within a secure CRM system and an email server will be used for sending what we hope are useful and relevant email briefing notes. We do not share this information with anyone. If you would like to see your data at any time or discuss this further, please email us at mail@cassallen.co.uk

Cass Allen Associates is a specialist Acoustics consultancy focused on the development, construction and environmental industries. Since our inception in 2000 we have completed over 3000 projects, gathering a wealth of experience throughout a wide variety of industries and situations, all of which is brought to bear on new projects.

All photos on our website are taken directly from projects we have or are working on, there are no stock images used on this site. We hope this gives a genuine insight into the work we do. We are full members of the Association of Noise Consultants and are accredited to carry out pre-completion sound testing as required by Part E of the Building Regulations.

Company News

Successful speaking event for Cass Allen

Cass Allen were thrilled to be invited to speak at the first Property Development Quarterly of 2020. The group delivers a quarterly forum designed to allow attendees to network and learn more from key contacts within the Bedfordshire, Buckinghamshire, Northamptonshire and Oxfordshire development and construction industry. Sam Bryant, Associate Director, presented on Noise and Infrastructure […]

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February 24, 2020

Greyfriars Redevelopment

Cass Allen were pleased to carry out an Environmental Noise Assessment of Bedford’s latest exciting development, the former Police Station located on Greyfriars. Kathryn Holloway, Bedfordshire’s Police and Crime Commissioner, commented to the Bedford Borough Council’s Planning Committee: “…we now have a plan that mixes the homes that are so desperately needed in the Bedford area with […]

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February 7, 2020

The International Year of Sound 2020

This global initiative aims to bring the importance of understanding sound throughout the world and the role it plays in our societies to the forefront with regional, national and international events. These events will happen across the globe from Peru to Poland and Argentina to Austria. The full programme of events can be found here. […]

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January 24, 2020

King’s Cross Central Regeneration

Cass Allen are delighted to carry out the acoustic design and testing at one of the most exciting large new developments in London. The site covers 67 acres and is transforming what was industrial wasteland into a thriving new hub – with its own brand new postcode to match! The first buildings to be developed […]

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January 7, 2020
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Get in touch

We hope you’ve enjoyed browsing our website but if you have any questions feel free to call us to talk through any acoustic issues you may be facing on your projects. The best person who can help with specific queries can be found here.