1 Denison Street, North Sydney, NSW

The Project

Project Details

1 Denison Street is a 37-level commercial office tower standing at 158 metres, making it one of North Sydney’s tallest buildings. Designed by architects Bates Smart, the tower provides more than 60,000m² of premium office space, a two-level lifestyle precinct and basement parking for 225 cars. A signature feature of the development is the public forecourt area with a fusion of urban structures and natural features alongside iconic retail spaces, restaurants and bars. The project has been designed to meet 5 Star Green Star, 5 Star NABERS and Wellness Rated standards, requiring waterproofing solutions aligned with these stringent environmental and wellness certifications.

To meet the highest performance and sustainability standards, the project focused on:

• Delivering environmentally responsible waterproofing systems aligned with 5 Star Green Star, 5 Star NABERS and Wellness Rated certifications
• Providing reliable protection across diverse applications including premium office spaces, lifestyle precinct areas and basement parking facilities
• Ensuring long-term durability and performance for North Sydney’s tallest building serving over 60,000m² of commercial space

Envirosystems Solution

Envirosystems used Enviro HP1200 for 1 Denison Street to provide waterproof protection throughout this landmark North Sydney tower. The product was selected for its proven performance characteristics and alignment with the building’s stringent sustainability certifications, including 5 Star Green Star, 5 Star NABERS and Wellness Rated standards.

Supported by a team of specialist experts with over 200 years combined experience, Enviro HP1200 proved to be a high-quality, low-risk alternative to other waterproofing products on the market. The system provided reliable, environmentally responsible protection for this premium commercial development, ensuring long-term performance for North Sydney’s tallest building and its diverse mix of office, lifestyle and public realm spaces.