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What is a party wall?

A party wall is a wall which sits on the land boundary between two or more owners. You can find good examples in walls that divide terraced or semidetached homes, or walls that form the boundary between two gardens (party wall walls).

Do I need a party wall agreement?

If you intend to build near or on a partywall, a party wall agreement will be required. If you plan to build near or on a party wall, you must notify your neighbors and provide them with a Party Wall Notice. Then, create a Party Wall Agreement in writing. You can ask your architect or builder for advice, but they won’t serve the notice.

You will need a Party Wall Agreement for the following tasks:

  • All work that involves party walls (or shared walls) between semi-detached or terraced homes.
  • Shared ‘party structures’ such as floors between flats are used in work.
  • You can improve the garden’s boundary walls.
  • Excavation or underpinning to the party wall.
  • Loft conversions can mean cutting into a party walls.
  • Installing a damp proof course in a party wall
  • Party walls made thicker or more robust
  • A second-storey extension is built above a shared wall.
  • You can build a wall that extends beyond or to the side of your party wall.

Do I need a party wall surveyor?

Many people decide that they don’t need the services of a partywall surveyor. A surveyor is not necessary if your neighbor responds in writing to your notice allowing for works to begin.

You are responsible for making sure that any damage done during the work is repaired. To avoid any disputes later, inspect the wall with your neighbor before you start work. Take photos and share them. To minimize disputes, some people ask a surveyor for a condition survey.

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