Architecture Public knowledge base

Reviewed 25.10.2026England focus

Jasmine Gokmen
In forceAcoustics & Access

BS 8233: Sound insulation and noise reduction for buildings

Guidance on internal noise levels

Guidance on controlling noise in and around buildings, including internal noise targets and the effect of ventilation strategy.

Also known as: BS8233, BS 8233, noise, acoustics

Jurisdiction
UK
Document type
Technical standard
Edition
Current edition
Source updated
Not stated by publisher
Applies from
—
Topic
Acoustics & Access

Key requirements

  • Sets out internal noise level guidance for different room uses.
  • Considers external noise break-in and façade design.
  • Ventilation openings can affect both noise and overheating strategy.
  • Useful in planning and environmental noise assessments.
  • Complements the statutory requirements of Part E.

Performance at a glance

Focus
Internal noise levels
Context
Design + planning

Applies to

Buildings in the UK where noise is a design consideration.

Official source

BSI Knowledge — BS 8233

Open official source

Related records

Part E · Resistance to soundPart O · OverheatingPart F · Ventilation

Reviewed 25 October 2026. This summary is an editorial reference, not legal advice. Check the current official text and confirm the approach with building control before relying on it. Browse all 35 records.