Key facts
Code summary
Code 4100
Official title Construction of buildings
Version PSIC 2019
Source layer PSA / BSP
Section F - Construction
Cn
PSIC 2019 Navigation-first hub Class 4100 - Construction of buildings
PSIC Class 4100 covers Construction of buildings. Current child subclasses include Residential (dwelling) Building Constructions and Non-residential Building Constructions. This four-digit layer is useful when comparing...
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Child codes
These are the next codes most users should open after this hub page.
About this level
Practical summary
Class 4100 sits in the PSIC 2019 hierarchy under F Construction > 41 Construction of Buildings > 410 Construction of buildings. This class usually fans out into more specific subclasses such as Residential (dwelling) Building Constructions and Non-residential Building Constructions. It is the level people use when they already know the activity family but still need the exact five-digit match.
Administrative context
Where this code is used
This class is used when a business can already narrow the activity family and only needs to compare the final subclasses such as Residential (dwelling) Building Constructions and Non-residential Building Constructions. It is the level most often checked before a five-digit decision is finalized.
Selection note
How to choose it
Use this class to choose between its final subclasses such as Residential (dwelling) Building Constructions and Non-residential Building Constructions. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.
Official note
Source-backed description
This class includes the construction of complete residential or non-residential buildings, on own account for sale or on a fee or contract basis. Outsourcing parts or even the whole construction process is possible. If only specialized parts of the construction process are carried out, the activity is classified in division 43. This class includes: Construction of all types of residential buildings: single-family houses; multi-family buildings, mass housing, including high-rise buildings Construction of all types of non-residential buildings: buildings for industrial production, e.g. factories, workshops, assembly plants, etc.; hospitals, schools, office buildings; hotels, stores, shopping malls, restaurants; airport buildings, indoor sports facilities; parking garages, including underground parking garages; warehouses, religious buildings Assembly and erection of prefabricated construction on the site This class also includes remodeling or renovating existing residential structures This class excludes: Erection of complete prefabricated constructions from self-manufactured parts not of concrete, see divisions 16 and 25; Construction of industrial facilities, except buildings, see 4290; Architectural and engineering activities, see 7110; Project management activities related to construction, see 7110.
FAQ
What does PSIC Class 4100 cover?
PSIC Class 4100 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Construction of buildings.
How do I compare Class 4100 with the sibling classes?
Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include nearby sibling codes.
Why does Class 4100 matter for a filing decision?
It is usually the last broad checkpoint before the five-digit subclass choice, so it is the right place to catch near-miss classifications.