Adapting Vacuum Conveyance to a Landmark Residential Development


D’Leedon is a premium 36-storey condominium in Singapore’s prime District 10. Renowned for its iconic design by Zaha Hadid, the upscale development features 1,715 apartments, 12 villas, and 8 retail units in an exclusive residential setting.
The diverse features of the property and its upscale status necessitate Greenwave to implement its single-fraction gravity vacuum PWCS to manage the condominium unit’s unique demands
Implementation Approach
To address the diverse needs in a condominium complex, Greenwave implemented a single-fraction gravity vacuum Pneumatic Waste Conveyance System (PWCS) that comprises 42 intake points, connecting each building’s refuse chutes to approximately 1.75 km of underground pneumatic piping.
Each intake point is equipped with odor-control features, such as self-closing louver flaps and “breakfall” chute liners.
At the central bin centre, two mobile compactors store and compress the collected waste, handling up to ~40 m³ of refuse per day. An integrated air filtration system treats all exhaust air, ensuring that no foul odors escape during operation.


Greenwave’s team coordinated with public utilities to route the main 508 mm refuse pipeline beneath an existing PUB water main without disrupting water service. The majority of the 1.75 km pipe network was laid underground and secured along the basement slab of the development
The design also introduced double-level discharge valve (DV) rooms: each tower’s refuse chute terminates in a two-tier service room, allowing maintenance personnel to safely access the discharge valve from a lower level.
“This was one of the most technically demanding PWCS projects we’ve delivered – from routing vacuum pipes, to custom-designing maintenance solutions for a luxury estate. It truly showcased our team’s engineering ingenuity and commitment to safety in execution.”
In summary
Highlights
In summary
Highlights
Expertise in complex PWCS Projects
D’Leedon’s project is a testament to Greenwave’s ability to deliver effective and innovative PWCS in premium residential settings, without compromising its design or comfort, and despite the project’s complexity and high standards.
The result reinforces Greenwave Solutions’ reputation as a leader in sustainable, clean-tech waste management, capable of meeting the toughest technical challenges surrounding the living environment of exclusive communities


