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What contract do you have with a professional to build a house?

Verified 18 April 2018 - Directorate for Legal and Administrative Information (Prime Minister)

Individual house on plan

You must call on a builder and sign a contract with him to build a detached house with plan supply (CCMI).

This contract allows the builder to design the plan and all the construction work of a house (or part of it while subcontracting the remaining work to specialized companies).

The contract between the manufacturer and yourself must be written and contain the following elements:

  • Land designation
  • Construction characteristics
  • Overall and final price
  • Method of payment and revision of price
  • Job execution time
  • Reference to the manufacturer's professional liability insurance and that of your property damage insurance

In the event of failure to respect the time limit for the execution of the construction works provided for in the contract, you must give notice to the builder to complete the works with penalty of delay.

Forcing the builder to finish his house

If the manufacturer does not respond after the formal notice is sent, you can enter the institution that is the manufacturer's guarantor.

Turn against the builder's guarantor of his unfinished house

Other situation

You can sign several contracts with different trades.

When one of the companies takes care of the large work, the water and the air (laying of windows and doors), you must sign with it a contract for the construction of a single-family home (CCMI). This company can itself take charge of the work or entrust it to a master builder (architect, design office...) by signing a master's contract.

Quotations may be sufficient (except in the case where one of the companies carries out the large work, the out of water and the out of air: then refer to the content of the CCMI). However, it is recommended that a written contract be concluded with each contractor and that the following be mentioned:

  • Plans and specifications for the work
  • Overall and final price
  • Methods of payment and price revision
  • Job execution time
  • Reference to the professional liability insurance of each professional and that of your property damage insurance

In the event of failure to respect the time limit for the execution of the construction works provided for in the contract, you must give notice to the builder to complete the works with penalty of delay.

Forcing the builder to finish his house

If the manufacturer does not respond after the formal notice is sent, you can enter the institution that is the manufacturer's guarantor.

Turn against the builder's guarantor of his unfinished house