Wave Dynamics GuidesProPG Explained: Planning New Homes in Noisy Places
How ProPG: Planning and Noise is used to assess new residential development, the stage 1 risk assessment, stage 2 elements and acoustic design statements.
In Short
ProPG (Professional Practice Guidance on Planning and Noise, 2017) is the recognised approach for assessing new homes exposed to transport noise. It uses a two-stage process: an initial site noise risk assessment, followed by a full assessment built around good acoustic design, recorded in an Acoustic Design Statement.
- Stage 1: classify the site as negligible, low, medium or high noise risk.
- Stage 2: good acoustic design, internal noise levels, external amenity and other issues.
- Internal targets are based on BS 8233, with limits on night-time maximum noise events.
- Widely used by Irish planning authorities as well as in England.
Why ProPG Exists
Before ProPG, noise was often treated as a box to tick late in design, solved with sealed windows and mechanical ventilation. ProPG encourages designers to deal with noise early, through site layout, building orientation and room arrangement, so homes are comfortable with windows open where possible.
Stage 1: Initial Site Noise Risk Assessment
Measured or predicted day and night noise levels are used to place the site on a scale from negligible to high risk. A high-risk site is not refused automatically, but it signals that careful design and a thorough assessment will be needed.
Stage 2: Full Assessment
- Element 1: demonstrating a good acoustic design process.
- Element 2: meeting internal noise level guidelines, based on BS 8233 (for example 35 dB LAeq,16hr in living rooms and bedrooms by day, 30 dB LAeq,8hr in bedrooms at night).
- Element 3: external amenity areas, ideally below 50 to 55 dB LAeq,16hr.
- Element 4: other relevant issues, such as ventilation, overheating and nearby businesses.
The Acoustic Design Statement
The Acoustic Design Statement (ADS) records the assessment and the design decisions. It should explain how the layout responds to noise, what façade and ventilation performance is needed and how the scheme will meet the targets. A clear ADS makes planning decisions easier and gives the design team a brief to follow.
Frequently Asked Questions
Is ProPG used in Ireland?
Yes. ProPG is widely referenced by Irish planning authorities for residential development near roads, rail and airports.
Does ProPG cover industrial noise?
ProPG focuses on transport noise. Industrial and commercial sound affecting new homes is usually assessed with BS 4142 as well.
This guide gives general information and is not a substitute for project-specific advice. Requirements change, so always check the current regulations, guidance and your planning conditions. Ask our team about your project.
Jon Maguire (BSc Hons MIOA) brings over 8 years of expertise in acoustic consultancy, specialising in environmental acoustics with a focus on 3D modelling, assessments, and detailed design for industrial, commercial, and energy projects. He has lead noise assessments for key clients while thriving in multidisciplinary environments. Jon’s diplomatic communication skills are ideal for stakeholder consultation.
Jack is a Field Engineer at Wave Dynamics, supporting the delivery of environmental monitoring and acoustic consultancy services through detailed on-site fieldwork. He has hands-on experience in noise monitoring, vibration monitoring, and dust monitoring across a variety of infrastructure, construction, and environmental projects. Jack is involved in the setup, operation, and maintenance of monitoring equipment, ensuring accurate data collection in line with relevant standards and project requirements. He works closely with consultants and project teams, providing reliable field support that underpins high-quality assessments and reporting.
Aidan is the Director for all U.K Operations and has worked in multiple industries including for clients in the UK and internationally operating in the residential, industry, healthcare, education, and construction sectors.
