Search Legislation

The Town and Country Planning (General Permitted Development) (England) Order 2015

What Version

 Help about what version
  • Latest available (Revised)
  • Original (As made)

Status:

This is the original version (as it was originally made). This item of legislation is currently only available in its original format.

Class B – additions etc to the roof of a dwellinghouse

Permitted development

B.  The enlargement of a dwellinghouse consisting of an addition or alteration to its roof.

Development not permitted

B.1  Development is not permitted by Class B if—

(a)permission to use the dwellinghouse as a dwellinghouse has been granted only by virtue of Class M, N, P or Q of Part 3 of this Schedule (changes of use);

(b)any part of the dwellinghouse would, as a result of the works, exceed the height of the highest part of the existing roof;

(c)any part of the dwellinghouse would, as a result of the works, extend beyond the plane of any existing roof slope which forms the principal elevation of the dwellinghouse and fronts a highway;

(d)the cubic content of the resulting roof space would exceed the cubic content of the original roof space by more than—

(i)40 cubic metres in the case of a terrace house, or

(ii)50 cubic metres in any other case;

(e)it would consist of or include—

(i)the construction or provision of a verandah, balcony or raised platform, or

(ii)the installation, alteration or replacement of a chimney, flue or soil and vent pipe; or

(f)the dwellinghouse is on article 2(3) land.

Conditions

B.2  Development is permitted by Class B subject to the following conditions—

(a)the materials used in any exterior work must be of a similar appearance to those used in the construction of the exterior of the existing dwellinghouse;

(b)the enlargement must be constructed so that—

(i)other than in the case of a hip-to-gable enlargement or an enlargement which joins the original roof to the roof of a rear or side extension—

(aa)the eaves of the original roof are maintained or reinstated; and

(bb)the edge of the enlargement closest to the eaves of the original roof is, so far as practicable, not less than 0.2 metres from the eaves, measured along the roof slope from the outside edge of the eaves; and

(ii)other than in the case of an enlargement which joins the original roof to the roof of a rear or side extension, no part of the enlargement extends beyond the outside face of any external wall of the original dwellinghouse; and

(c)any window inserted on a wall or roof slope forming a side elevation of the dwellinghouse must be—

(i)obscure-glazed, and

(ii)non-opening unless the parts of the window which can be opened are more than 1.7 metres above the floor of the room in which the window is installed.

Interpretation of Class B

B.3  For the purposes of Class B, “resulting roof space” means the roof space as enlarged, taking into account any enlargement to the original roof space, whether permitted by this Class or not.

B.4  For the purposes of paragraph B.2(b)(ii), roof tiles, guttering, fascias, barge boards and other minor roof details overhanging the external wall of the original dwellinghouse are not to be considered part of the enlargement.

Back to top

Options/Help

Print Options

You have chosen to open The Whole Instrument

The Whole Instrument you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

You have chosen to open The Whole Instrument as a PDF

The Whole Instrument you have selected contains over 200 provisions and might take some time to download.

Would you like to continue?

You have chosen to open The Whole Schedule

The Whole Schedule you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

You have chosen to open The Whole Schedule as a PDF

The Whole Schedule you have selected contains over 200 provisions and might take some time to download.

Would you like to continue?

You have chosen to open the Whole Instrument

The Whole Instrument you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

You have chosen to open Schedules only

The Schedules you have selected contains over 200 provisions and might take some time to download. You may also experience some issues with your browser, such as an alert box that a script is taking a long time to run.

Would you like to continue?

Close

Legislation is available in different versions:

Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.

Original (As Enacted or Made):The original version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.

Close

Opening Options

Different options to open legislation in order to view more content on screen at once

Close

Explanatory Memorandum

Explanatory Memorandum sets out a brief statement of the purpose of a Statutory Instrument and provides information about its policy objective and policy implications. They aim to make the Statutory Instrument accessible to readers who are not legally qualified and accompany any Statutory Instrument or Draft Statutory Instrument laid before Parliament from June 2004 onwards.

Close

More Resources

Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as enacted version that was used for the print copy
  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • correction slips
  • links to related legislation and further information resources
Close

Impact Assessments

Impact Assessments generally accompany all UK Government interventions of a regulatory nature that affect the private sector, civil society organisations and public services. They apply regardless of whether the regulation originates from a domestic or international source and can accompany primary (Acts etc) and secondary legislation (SIs). An Impact Assessment allows those with an interest in the policy area to understand:

  • Why the government is proposing to intervene;
  • The main options the government is considering, and which one is preferred;
  • How and to what extent new policies may impact on them; and,
  • The estimated costs and benefits of proposed measures.
Close

More Resources

Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as made version that was used for the print copy
  • correction slips

Click 'View More' or select 'More Resources' tab for additional information including:

  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • links to related legislation and further information resources