Penthouse Interior Design in Singapore
Summerhaus D'zign is a private residential design studio specialising in penthouse interior design across Singapore. Since 2012, we have shaped modern luxury homes at the top of the city, including double-volume spaces, multi-floor layouts, and roof terraces. Our work keeps grand proportions warm, considered, and liveable.
What sets our studio apart is proven penthouse work, such as our award-winning triplex penthouse at The Grange, which won an Asia Pacific Property Award and appeared in Tatler. Our founders, Jess Koh and Larry Lim, stay personally involved in every home, bringing a bespoke, tailored approach to every penthouse we design.
Selected Penthouse Projects
Our penthouse interior design portfolio gathers some of Singapore's most striking high-rise homes, each shaped by our bespoke approach.
The Grange
An award-winning triplex penthouse renovation, layering colour and texture across an open, double-volume space, with a fully revamped rooftop terrace and jacuzzi.
Cube 8
A decade-old penthouse reimagined in soft greys and floral accents, with a reconfigured layout, custom marble flooring, and the original jacuzzi replaced by a garden conversation pit.
Lincoln Suites
A duplex refined with bookmatched marble and copper-clad ceilings, using clean straight lines to echo the building's architecture throughout.
Browse more of our completed homes and view our full portfolio.
What Our Clients Say
“Their service and response are impeccable. Even after years of job completion , they still respond seriously and settle common wear and tear we have till now. It’s amazing company.”
“Jess and Larry are a very reliable and responsible team.They are professional, helpful and approachable, and always responded to our queries and concerns in a timely manner.”
Designing for Penthouse Living
Penthouse living rewards design that respects scale while keeping daily life comfortable. We turn generous space into warm, characterful homes shaped around each family.
Double-Volume Spaces: We anchor double-height living and dining with layered lighting and considered proportion, giving tall volumes warmth and depth.
Panoramic Views: We frame full-length glazing and place furniture to keep sightlines open, letting the skyline lead each room.
Multi-Floor Circulation: We shape triplex and split-level flow with statement staircases that connect storeys with ease.
Roof Terraces and Pools: We plan roof gardens, pools, and jacuzzis as outdoor entertaining spaces, with structure and waterproofing considered early.
Integrated Storage: We conceal full-height bespoke storage within clean architectural lines, keeping expansive interiors calm.
Premium Materials: We specify designer-grade stone, timber, and finishes, the hallmark of high-end interior design.
Our Approach to Penthouse Interior Design
Our Bespoke Approach
Our studio takes a bespoke approach to every penthouse. We treat each home as an act of renewal, shaped around how your family wants to live. As a high-end interior design firm in Singapore, we translate your tastes into a design made only for you. Our founders stay personally involved throughout. Learn more about us.
Our Process
Our process moves through five clear stages.
Initial Conversation and Brief: We listen closely to your life, needs, and vision for the home.
Design Development: We shape the spatial concept, mood, and character of each space.
Material and Detail Planning: We resolve finishes, joinery, and bespoke fittings with precision.
Design Delivery: We oversee quality and detail through to a polished completion.
Handover and Beyond: We stay available long after you have settled in.
Why Summerhaus for Your Penthouse
Summerhaus brings genuine penthouse interior design capability to every home. We deliver end-to-end design and fit-out, including bespoke furniture. High-rise homes bring logistical demands, which we manage with care.
High-Rise Logistics: We coordinate oversized stone, glass, and carpentry through service lifts and cranes.
Building Approvals: We manage MCST rules, permits, and approvals so each project moves smoothly.
Roof Terrace and Pool Planning: We account for structure and waterproofing early, protecting these spaces for years.
Trusted for luxury homes since 2012, our studio has earned wide recognition. Our triplex penthouse at The Grange won an Asia Pacific Property Award and appeared in Tatler. We have also earned honours from the IPA, APPA, Tatler Design Award, IDA, and A'Design Award.
Our work has featured in the press, including Tatler and The Peak. We rank among Tatler's Top 50 Influential Names in Singapore Design.
Our Other Condominium Interior Design Services
Penthouses form part of our wider work across high-rise homes in Singapore.
For apartments and larger units, our high-end condo interior design brings the same tailored, understated approach.
To see the aesthetic behind our homes, explore our modern luxury design style.
Frequently Asked Questions About Our Penthouse Interior Design Services in Singapore
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Penthouse interior design shapes the interiors of top-floor homes. It works with grand volumes, panoramic views, and multi-level layouts to create refined, liveable spaces.
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We anchor tall volumes with layered lighting, considered proportion, and warm materials, so double-height and split-level spaces feel intimate and grounded.
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Yes. Summerhaus provides end-to-end design and fit-out, including bespoke furniture, from first brief to final handover.
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Penthouses involve grander volumes, multiple storeys, roof terraces, and complex logistics, all calling for more considered planning.
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We coordinate oversized materials through service lifts and cranes, and manage MCST rules, permits, and approvals throughout.
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Yes. We plan roof gardens, pools, and jacuzzis as entertaining spaces, with structure and waterproofing addressed from the outset.
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A penthouse home typically runs 12 to 18 months from design development to handover, depending on scope.
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Yes. We design discreet smart-home integration for lighting, climate, security, and entertainment, tailored to how you live.
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Yes. We can specify responsibly sourced timber, low-impact finishes, and durable materials chosen for longevity.
Start Planning Your Home’s Design
If you are planning a penthouse home in Singapore, we would love to hear from you. Share your floor plan and a few words on how you want the interior design to complement your lifestyle. Our studio will follow up to arrange a conversation, with no obligation and no assumption on where it leads.