• 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

Construction Continues at Copley Close

We are proud to be working on Phase 6 of Ealing Council’s major transformation of Copley Close. Phase 6 also known as “Copley Castle Bar”, will be a collection of contemporary new homes surrounding a landscaped central square. This central residential hub will form the heart of the development, located at the halfway point of […]

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July 1, 2020

Cass Allen- saying goodbye to the teenage years!

Tomorrow we turn 20! Whilst we are unable to celebrate with a couple of drinks at our local at present we will be celebrating reaching this milestone from our own homes. We’d like to take this opportunity to thank all of our clients, associates and employees that have played their part in our success- from […]

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April 17, 2020

Hanwood Park progress

Cass Allen are pleased to announce their appointment by Hanwood Park LLP to assist with the discharge of two noise planning conditions relating to the development in Kettering. Hanwood Park is a mixed-use development containing up to 5,500 dwellings, a secondary school, up to 4 primary schools, green spaces, employment areas, shops and health care facilities. […]

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April 8, 2020

Cass Allen gallop to provide acoustic consultancy at the Horse Hospital Bar and Club

Cass Allen has been appointed to optimise the acoustic design of the Grade II listed Horse Hospital Bar and Club at Camden Market. The aim of the study is to ensure that acceptable music breakout levels are achieved at nearby sensitive receptors including surrounding residential properties and the retail units directly below the venue.

Read More [..]

March 27, 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.