Sustainable retrofitting

Local Listed Building Consent Orders (LLBCO)

If your property is listed, you'll usually need listed building consent before you start work.

A Local Listed Building Consent Order (LLBCO) can make this simpler. It is a pro-active and blanket grant of listed building consent by the council.

This means if your listed building is covered by an LLBCO, you will not have to make individual applications to us. Instead you can start with the works if they meet the conditions attached to the order.

Some works may not need planning permission. For example, installing solar PV panels if they are fitted discreetly.

For more information about planning permission, visit the Planning Portal.

Types of work covered by our LLBCOs

We currently have LLBCOs for: 

  • installing solar panels
  • window works
  • specific window works in the Queen’s Gate, Pembridge and Holland Park Conservation Areas
LLBCO for installing solar panels

This order was made on 18 May 2022.

It allows solar PV panels on:

  • Grade II buildings
  • most Grade II* buildings

The order includes conditions to ensure that panels are:

  • sensitively designed
  • positioned to avoid harming the visual effect on the building or the wider area

We grant consent provided you meet the conditions in the order.

LLBCO for window works

This order was made on 18 May 2023.

It covers certain alterations to windows in Grade II listed buildings only, including:  

  • installing secondary glazing to any window
  • installing double-glazed windows or double-glazed sealed units within existing frames in certain circumstances and providing the window to be replaced or altered:
    • is itself a replacement or a new window in an extension,
    • was installed after the date of listing and has with the benefit of listed building consent.
       

Read the LLBCO for window works for more information. 

No application for approval of details is required under the order.

LLBCO for window works in the Queen’s Gate, Pembridge and Holland Park Conservation Areas

This LLBCO was made on 20 March 2026.

It covers alterations to windows only in Grade II listed buildings in these Conservation Areas:

  • Queen’s Gate
  • Pembridge
  • Holland Park

This includes replacing existing, machine manufactured float glass in sash windows with a one-over-one or two-over-two configuration, with slimline double glazing. 

This LLBCO includes:

  • the type evidence you need to send us before you can make use of the order
  • a brief guide to understanding and using the order

Read the LLBCO for window works in the Queen’s Gate, Pembridge and Holland Park Conservation Areas.

If you're not sure an LLBCO applies to you

If you're not sure whether your proposed works are covered by an LLBCO, or you want written confirmation, you can get advice through our pre-application service.

You may also want to apply for a Certificate of Lawfulness of Works.

Documents and guidance

Last updated: 22 May 2026