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Residential
Projects

Residential

Drainage for
landmark
residential towers

High-rise residential developments present unique drainage challenges — exposed balconies, large podium areas, green roof terraces and the unacceptable risk of water ingress into habitable spaces. Fast Flow's psBalcony™ pressurised system and siphonic solutions have been specified at iconic residential developments across Asia Pacific, including The Interlace and Reflections Keppel Bay in Singapore, Southbank Melbourne, and major residential towers in Malaysia, China and Indonesia.

Featured Project · Singapore

The
Interlace

1,040
Residential units
31
Six-storey apartment blocks
psBalcony®
Patented system deployed
The Interlace, Singapore
The Interlace · Singapore · 31 interlocking six-storey blocks · 1,040 residential units
Challenges
  • The interlocking block configuration eliminates conventional vertical continuity, preventing rainwater drainage stacks from running directly from the roof to the ground.
  • Rainwater downpipes from each six-storey block must be consolidated and routed horizontally through extremely congested M&E transfer spaces before reaching the shared service cores located at the block interlocking points.
  • This presents a particularly critical challenge for balcony drainage. Long horizontal collector pipes without gradient can generate transient pressure fluctuations, creating a significant risk of water backflow into connected balconies during heavy rainfall.
Solutions
  • Fast Flow's siphonic drainage system enables large-capacity horizontal rainwater transfer without pipe gradients, allowing roof drainage from each block to be efficiently conveyed through the constrained M&E transfer spaces to the central service cores.
  • Fast Flow's patented psBalcony® pressurised balcony drainage system was developed specifically for this application. By incorporating the patented psVent® anti-backflow technology, the system safely conveys balcony discharge through horizontal collector pipes without slope while preventing transient pressure from causing backflow into balcony outlets.
Achievements
  • Successfully integrated both the siphonic roof drainage system and the psBalcony® pressurised drainage system within highly congested M&E transfer spaces, maximising usable building space while maintaining exceptional drainage performance.
  • Eliminated the risk of balcony backflow through the application of Fast Flow's patented psVent® anti-backflow technology, ensuring reliable operation even under peak storm conditions.
  • Delivered a highly customised drainage solution that overcame one of the most complex drainage challenges created by the building's iconic interlocking architecture, while fully preserving the architect's design vision.
The Interlace — drainage detail The Interlace — block configuration The Interlace — M&E transfer
Project References
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The Inflora
The Inflora
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The Interweave
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The Light Collection I
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The Light Collection III
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The Light Collection IV
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The Marina View
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The Meyerise
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The Pallette
The Pallette
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The Parkland Residence
The Parkland Residence
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The Rainforest
The Rainforest
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The Scotts Tower
The Scotts Tower
Singapore
The Seawind
The Seawind
Singapore
The Tennery
The Tennery
Singapore
The Terrace
The Terrace
Singapore
The Trilinq
The Trilinq
Singapore
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The Veo
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The Viridian
The Viridian
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Tomlinson Heights
Tomlinson Heights
Singapore
TTDI Ascencia
TTDI Ascencia
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Twin Peaks Condominium
Twin Peaks Condominium
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Twin Waterfalls
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USJ One Avenue
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Vue 8 Residences
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W Hotel Residence
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Wangsa 9 Residency
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Westwood Residence
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Widyachandra Residence
Widyachandra Residence
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Woodland Park Residence
Woodland Park Residence
Indonesia
18 Woodsville
18 Woodsville
Singapore
38 Isuites
38 Isuites
Singapore
76 Shenton
76 Shenton
Singapore
8M Residences
8M Residences
Singapore
Alba Condominium
Alba Condominium
Singapore
Alexandra View
Alexandra View
Singapore
Amanja
Amanja
Malaysia
Amber Skye
Amber Skye
Singapore
Anchorvale Crescent Executive Condominium
Anchorvale Crescent Executive Condominium
Singapore
Ardmore III
Ardmore III
Singapore
Ardmore Residence
Ardmore Residence
Singapore
Bartley Residences
Bartley Residences
Singapore
Bartley Ridge
Bartley Ridge
Singapore
Bay 21
Bay 21
Malaysia
Bijou Pasir Panjang
Bijou Pasir Panjang
Singapore
Bishopgate Residences
Bishopgate Residences
Singapore
Blossom Residences
Blossom Residences
Singapore
Chai Chee HDB Development
Chai Chee HDB Development
Singapore
Citylife
Citylife
Singapore
Cityscape
Cityscape
Singapore
Cluny Park Residence
Cluny Park Residence
Singapore
Coco Palms
Coco Palms
Singapore
Commonwealth Towers
Commonwealth Towers
Singapore
Concerto
Concerto
Malaysia
Concorde Residence
Concorde Residence
Singapore
Concourse
Concourse
Singapore
Corals At Keppel Bay
Corals At Keppel Bay
Singapore
Crown
Crown
Singapore
Cube 8
Cube 8
Singapore
D Nest
D Nest
Singapore
D Sara Sentral
D Sara Sentral
Malaysia
Danau Sunter Residence
Danau Sunter Residence
Indonesia
Denpasar Residence
Denpasar Residence
Indonesia
Eco Sanctuary
Eco Sanctuary
Singapore
Eight Raja
Eight Raja
Singapore
Eight Riversuites
Eight Riversuites
Singapore
Empire Residence
Empire Residence
Malaysia
Espada
Espada
Singapore
Euhabitat
Euhabitat
Singapore
Flo Residence
Flo Residence
Singapore
Glomac
Glomac
Malaysia
Goodwood Residence
Goodwood Residence
Singapore
Grand Kamala Lagoon
Grand Kamala Lagoon
Indonesia
H2O Residences
H2O Residences
Singapore
Hillsta
Hillsta
Singapore
House Of Green Garden
House Of Green Garden
Indonesia
Icon Residence
Icon Residence
Malaysia
Iconsiam
Iconsiam
Thailand
J Gateway
J Gateway
Singapore
Jewel At Buangkok
Jewel At Buangkok
Singapore
Katong Regency
Katong Regency
Singapore
Kelapa Gading House
Kelapa Gading House
Indonesia
Lacosta
Lacosta
Malaysia
Lakeville Residence
Lakeville Residence
Malaysia
Lakeville
Lakeville
Singapore
Lloyd Sixty Five
Lloyd Sixty Five
Singapore
Lush Acres Executive Condominium
Lush Acres Executive Condominium
Singapore
M City
M City
Malaysia
M Society
M Society
Thailand
M Suites
M Suites
Malaysia
Madge Mansion
Madge Mansion
Malaysia
Magnolias Ratchadamri Blvd
Magnolias Ratchadamri Blvd
Thailand
MK22
MK22
Malaysia
Nadi Bangsar
Nadi Bangsar
Malaysia
Neo Damansara
Neo Damansara
Malaysia
One Amerin Residence
One Amerin Residence
Malaysia
Oxley Thanksgiving Residence
Oxley Thanksgiving Residence
Singapore
Palm Isles
Palm Isles
Singapore
Pandora Residences
Pandora Residences
Malaysia
Paradiso Nuova
Paradiso Nuova
Malaysia
Pavilion Residences
Pavilion Residences
Malaysia
PR1MA Alam Damai
PR1MA Alam Damai
Malaysia
Q Bay Residences
Q Bay Residences
Singapore
Radio Dalam Residence
Radio Dalam Residence
Indonesia
Regent Residences
Regent Residences
Singapore
Ripple Bay Condominium
Ripple Bay Condominium
Singapore
Riverbank At Fernvale
Riverbank At Fernvale
Singapore
Riviera 38
Riviera 38
Singapore
RV Residences
RV Residences
Singapore
Seahill
Seahill
Singapore
Sennett Residence
Sennett Residence
Singapore
Sennett Residence 2
Sennett Residence 2
Singapore
Setia Sky 88
Setia Sky 88
Malaysia
Setiabudi Residence
Setiabudi Residence
Indonesia
Siamese 39
Siamese 39
Thailand
Siamese Surawong
Siamese Surawong
Thailand
Silversea
Silversea
Singapore
Skies Miltonia
Skies Miltonia
Singapore
Sky Habitat
Sky Habitat
Singapore
Sky Vue Condo
Sky Vue Condo
Singapore
Skyline At Orchard Boulevard
Skyline At Orchard Boulevard
Singapore
Skyline Residences At Telok Blangah
Skyline Residences At Telok Blangah
Singapore
Skypark Residences
Skypark Residences
Singapore
Sol Acres
Sol Acres
Singapore
Sophia Hills Condo
Sophia Hills Condo
Singapore
Spottiswoode Residences
Spottiswoode Residences
Singapore
St Thomas Walk
St Thomas Walk
Singapore
Stutong Heights
Stutong Heights
Malaysia
Sukhothai Residences
Sukhothai Residences
Thailand
Sunway Rydgeway Melawati
Sunway Rydgeway Melawati
Malaysia
Suria Residence
Suria Residence
Malaysia
Tembusu Condominium
Tembusu Condominium
Singapore
Terrase
Terrase
Singapore
The Crest At Price Charles Crescent
The Crest At Price Charles Crescent
Singapore
The Criterion Executive Condo
The Criterion Executive Condo
Singapore
The Elements
The Elements
Malaysia
The Face
The Face
Malaysia
The Glyndebourne
The Glyndebourne
Singapore
The Inflora
The Inflora
Singapore
The Interweave
The Interweave
Singapore
The Light Collection I
The Light Collection I
Malaysia
The Light Collection III
The Light Collection III
Malaysia
The Light Collection IV
The Light Collection IV
Malaysia
The Marina View
The Marina View
Malaysia
The Mark Ratchada Airport Link
The Mark Ratchada Airport Link
Thailand
The Meyerise
The Meyerise
Singapore
The Pallette
The Pallette
Singapore
The Panorama
The Panorama
Singapore
The Parkland Residence
The Parkland Residence
Singapore
The Rainforest
The Rainforest
Singapore
The Scotts Tower
The Scotts Tower
Singapore
The Seawind
The Seawind
Singapore
The Tennery
The Tennery
Singapore
The Terrace
The Terrace
Singapore
The Trilinq
The Trilinq
Singapore
The Veo
The Veo
Malaysia
The Viridian
The Viridian
Singapore
Tomlinson Heights
Tomlinson Heights
Singapore
TTDI Ascencia
TTDI Ascencia
Malaysia
Twin Peaks Condominium
Twin Peaks Condominium
Singapore
Twin Waterfalls
Twin Waterfalls
Singapore
USJ One Avenue
USJ One Avenue
Malaysia
Villa Rachatewi
Villa Rachatewi
Thailand
Villa Sathorn
Villa Sathorn
Thailand
Vue 8 Residences
Vue 8 Residences
Singapore
W Hotel Residence
W Hotel Residence
Malaysia
Wangsa 9 Residency
Wangsa 9 Residency
Malaysia
Watertown
Watertown
Singapore
Westwood Residence
Westwood Residence
Singapore
Widyachandra Residence
Widyachandra Residence
Indonesia
Woodland Park Residence
Woodland Park Residence
Indonesia
Key Challenges
Challenge 01
Balcony Flooding
Exposed high-rise balconies are subject to extreme rainfall intensities — particularly in tropical climates. Conventional drainage cannot always drain water fast enough to prevent flooding and potential ingress into the unit. The psBalcony™ system is specifically designed to address this challenge.
Challenge 02
Podium Deck Drainage
Large podium decks in mixed residential developments require drainage systems that can handle high flow rates while minimising structural penetrations through the podium slab and maintaining a waterproof deck surface.
Challenge 03
Landscape Integration
Green roofs and landscape terraces require drainage systems that are invisible, low-maintenance and compatible with planted substrates — while still performing at peak capacity during extreme rainfall events.
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