Understanding the Singapore GB2 Builder License

In Singapore, the GB2 (General Builder Class 2) builder license is issued by the Building and Construction Authority (BCA). Companies holding a GB2 license are authorized to undertake various types of building and structural works, subject to a contract value limit.

Scope of Construction Works for GB2 License

A GB2 license permits the following types of construction and structural engineering projects:

1. Building Works:

• Construction of residential, commercial, industrial, and institutional buildings.
• Structural alteration and addition works.
• Additions, alterations, repairs, and maintenance of buildings.

2. Structural Works:

• Installation of prefabricated structures.
• Construction of concrete structures.
• Installation of steel structures.

3. Other Related Works:

• Interior and exterior renovation and alteration.
• Building facade repair.
• Earthworks and foundation works (with limitations).

Contract Value Limit for GB2 License

• The contract value for a single project must not exceed SGD 6.9 million.
• If the contract value exceeds this limit, the project must be undertaken by a company holding a GB1 (General Builder Class 1) license.

Common Project Types Applicable for GB2 License

The GB2 license is typically suitable for the following types of construction projects:

• Construction of small to medium-sized buildings (e.g., low-rise residential buildings, shophouses, retail outlets).
• Renovation and addition works for commercial and residential units.
• Small-scale construction and expansion of factories and warehouses.
• Renovation and maintenance of HDB or private apartments.
• Repair and refurbishment of building facades.

For projects with a contract value exceeding SGD 6.9 million, a GB1 license is required.