Main Changes In The 2015 Edition

  1. Main changes

    Main changes

    This volume of this approved document supports requirements M4(1), M4(2) and M4(3) of Schedule 1 to the Building Regulations 2010. It takes effect on 1 October 2015 for use in England*. The 2004 edition of Approved Document M with 2010 and 2013 amendments will continue to apply to work started before 1 October 2015 or work subject to a building notice, full plans application or initial notice submitted before that date. *This approved document gives guidance for compliance with the Building Regulations for building work carried out in It also applies to building work carried out on excepted energy buildings in Wales as defined in the Welsh Ministers (Transfer of Functions) (No.2) Order 2009.

    The main changes are:

    • Approved Document M has been split into two parts:
      • Volume 1: Dwellings
      • Volume 2: Buildings other than
    • Requirement M4 ‘Sanitary conveniences in dwellings’ has been replaced by new requirements:
      • M4(1) Category 1: Visitable dwellings
      • M4(2) Category 2: Accessible and adaptable dwellings
      • M4(3) Category 3: Wheelchair user
    Regulation M4(1) is mandatory for all new dwellings unless one of the optional requirements M4(2) or M4(3) applies.

    Main changes made by the 2016 amendments

    The changes are corrections and clarifications, as set out in the 2016 AD M Volume 1 Corrigenda.

    • [caption id="attachment_6579" align="alignnone" width="660"]1.1Measurement of clear opening width of external and internal doors Diagram 1.1 Measurement of clear opening width of external and internal doors[/caption]

    • 1.2 Minimum door width, hall widths and localised obstructions Diagram 1.2 Minimum door width, hall widths and localised obstructions.
    • 1.3 WC access zones Diagram 1.3 WC access zones.
    • 1.4 Exmples of WC/cloakroom Diagram 1.4 Exmples of WC/cloakroom
    • 1.5 Heights of switches, sockets etc Diagram 1.5 Heights of switches, sockets etc.
    • 2.1 Maximum length of ramp at a given gradient Diagram 2.1 Maximum length of ramp at a given gradient.
    • 2.2 Measurement of clear opening width and other features of external and internal doors Diagram 2.2 Measurement of clear opening width and other features of external and internal doors.
    • 2.3 Minimum door and hall widths and restrictions on localised obstructions Diagram 2.3 Minimum door and hall widths and restrictions on localised obstructions.
    • 2.4 Clear access zones to principal bedroom Diagram 2.4 Clear access zones to principal bedroom.
    • 2.5 Sanitary fittings, associated clear access zones and permitted encroachment of basins Diagram 2.5 Sanitary fittings, associated clear access zones and permitted encroachment of basins.
    • 2.6 Examples of WC-cloakroom layouts Diagram 2.6 Examples of WC/cloakroom layouts.
    • 2.7 Examples of Category 2 bathrooms Diagram 2.7 Examples of Category 2 bathrooms.
    • 3.1 Maximum length of ramp at a given gradient Diagram 3.1 Maximum length of ramp at a given gradient
    • 3.2 Measurement of clear opening width and other features of external and internal doors Diagram 3.2 Measurement of clear opening width and other features of external and internal doors
    • 3.3 Features associated with principal private entrance Diagram 3.3 Features associated with principal private entrance.
    • 3.4 Minimum door and hall widths and restrictions on localised obstructions Diagram 3.4 Minimum door and hall widths and restrictions on localised obstructions
    • 3.5 Outward opening doors in a corner Diagram 3.5 Outward opening doors in a corner
    • 3.6 Wheelchair storage and transfer space Diagram 3.6 Wheelchair storage and transfer space
    • 3.7 Access to through floor lift Diagram 3.7 Access to through floor lift
    • 3.8 Example of wheelchair accessible kitchen layout Diagram 3.8 Example of wheelchair accessible kitchen layout
    • 3.9 Clear access zones and manoeuvering spaces to principal bedroom Diagram 3.9 Clear access zones and manoeuvering spaces to principal bedroom
    • 3.10 Sanitary fittings associated clear access zones and permitted encroachment of basins – wheelchair adaptable Diagram 3.10 Sanitary fittings associated clear access zones and permitted encroachment of basins – wheelchair adaptable
    • 3.11 Sanitary fittings, associated clear access zones and permitted encroachment of basins – wheelchair accessible Diagram 3.11 Sanitary fittings, associated clear access zones and permitted encroachment of basins – wheelchair accessible
    • 3.12 Example of wheelchair adaptable WC/cloakroom layout with potential to be wheelchair accessible Diagram 3.12 Example of wheelchair adaptable WC/cloakroom layout with potential to be wheelchair accessible
    • 3.13 Sanitary fittings associated access zones and permitted encroachment of basis for second WC/cloakroom where on same floor level as first WC Diagram 3.13 Sanitary fittings associated access zones and permitted encroachment of basis for second WC/cloakroom where on same floor level as first WC
    • 3.14 Examples of compliant second WC cloakrooms where on the same floor level asthe first WC Diagram 3.14 Examples of compliant second WC/cloakrooms where on the same floor level as the first WC
    • 3.15 Examples of wheelchair adaptable bathroom layouts with potential to be wheelchair accessible Diagram 3.15 Examples of wheelchair adaptable bathroom layouts with potential to be wheelchair accessible
    • 3.16 Examples of wheelchair accessible bathrooms Diagram 3.16 Examples of wheelchair accessible bathrooms
    • 3.17 Examples of wheelchair accessible bathrooms with both bath and shower Diagram 3.17 Examples of wheelchair accessible bathrooms with both bath and shower
    • Table 1.1 Minimum widths of corridors and passageways for a range of doorway widths Table 1.1 Minimum widths of corridors and passageways for a range of doorway widths
    • Table 2.1 Minimum widths of corridors and passageways for a range of doorway widths Table 2.1 Minimum widths of corridors and passageways for a range of doorway widths.
    • Table 3.1 Minimum area of general built-in-storage Table 3.1 Minimum area of general built-in-storage
    • Table 3.2 Minimum combined floor area for living, dining and kitchen space Table 3.2 Minimum combined floor area for living, dining and kitchen space
    • Table 3.3 Min length of kitchen worktop Table 3.3 Min length of kitchen worktop
    • Table 3.4  Minimum length of kitchen worktop, including fittings and appliances, to be fitted at completion for a wheelchair accessible dwelling Table 3.4 Minimum length of kitchen worktop, including fittings and appliances, to be fitted at completion for a wheelchair accessible dwelling
    • Table 3.5 Summary of minimum requirements for sanitary provision in typical dwelling types Table 3.5 Summary of minimum requirements for sanitary provision in typical dwelling types
    • Appendix D Furniture schedule Appendix D Furniture schedule