Which NAF codes for construction trades?

The building sector is home to a large number of trades and specialties, each with their own specific characteristics. To best identify and list these activities on a national scale, there are codes assigned when a company is set up: NAF codes. Find out everything you need to know about NAF codes for building and civil engineering trades: definition, use, interest, list of codes by trade.

The NAF code - for "Nomenclature d'activité française" - is a code automatically code automatically assigned by the Institut national de la statistique et des études économiques (Insee) when your company is registered.

This code, composed of 4 digits and 1 letterenables Insee to identify companies and organizations according to their sector of activity. Insee also lists your activity under an APE code, for "Activité principale exercée par l'entreprise" (main activity carried out by the company).

What are the differences between NAF and APE codes? There are none. If the name changes, the number assigned remains the same. So you can find it under both names on official documents.

As a building and civil engineering professional, you don't need to take any specific steps to receive a NAF code. It's one of the unique codes assigned to you as soon as you finalize the creation of your company, such as :

• Siret number ;
• Siren number ;
• VAT number ;
• RCS number.

The NAF code for the building trades does more than just list the various activities.

In particular, it will define the collective bargaining agreement to which you belong.

As a reminder, the collective agreement sets out all the rules applicable to your employees. For the building trades, you can choose between several agreements :

• The national collective agreement for workers employed by construction companies with up to 10 employees;
• The national collective agreement for workers employed by construction companies with more than 10 employees;
• The national collective agreement for building employees, technicians and supervisors;
• the collective agreement for building industry executives.

The NAF code can also be important when it comes to responding to a call for tenders. Some pre-selections are made on the basis of the company's APE code.

Consequently, if your NAF code does not correspond precisely to the sector of activity sought in the call for tenders, you may not be able to apply.

Discover the list of NAF codes assigned to construction trades, according to activity and specialization.

If your company specializes in building constructionthe NAF codes are as follows :

• 4213A : Construction of engineering structures ;
• 4120A: Construction of single-family homes ;
• 4120B : Construction of other buildings ;
• 4213B: Tunnel construction and maintenance ;
• 4399C: General masonry and building shell work ;
• 4399D: Other specialized construction work ;
• 4291Z: Construction of river and maritime structures ;
• 4211Z: Construction of freeways and roads ;
• 4221Z: Construction of fluid networks ;
• 4212Z: Construction of underground and surface railroads ;
• 4222Z: Construction of electrical and telecommunications networks ;
• 4299Z: Construction of other civil engineering works NCA.

For companies specializing in insulation, waterproofing or roofing workhere are the applicable NAF codes:

• 4399A : Waterproofing work ;
• 4329A : Insulation work ;
• 4391A : Carpentry carpentry ;
• 4391B : Roofing roofing by elements ;
• 4322B : Installation of heating and air-conditioning equipment ;
• 4399B : Erection of metal structures.

Companies carrying out demolition, installation or earthmoving work are assigned one of the following NAF codes:

• 4312A : Preparatory work and standard earthworks ;
• 4321A: Electricalelectrical installation in all types of premises ;
• 4322A : Gas and water installation work in all types of premises;
• 4312B : Large or specialized earthworks ;
• 4321B : Electrical installation work on public highways ;
• 4329B : Other installation work NCA ;
• 4311Z: Demolition work ;
• 4313Z: Soundings and boreholes.

The NAF codes assigned to companies carrying out finishing work can be :

• 4332A: Wood and PVC joinery ;
• 4332B: Locksmithing locksmithing and metal joinery ;
• 4332C: Shop fittings ;
• 4331Z: Plastering work ;
• 4333Z: Wall and floor coverings ;
• 4334Z: Glazing and painting work painting ;
• 4339Z: Other finishing work.

There are also NAF codes for trades related to real estate development. real estate development :

• 4110A : Housing development ;
• 4110B: Office property development ;
• 4110C: Real estate development of other types of buildings ;
• 4110D: Legal support for programs.