Ombak House – ARCHINESIA
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Ombak House

[Indonesian text below] Ombak House introduces a different approach to incorporating outdoor spaces into urban housing. Traditionally found at the back of houses in Southeast Asia, these open areas are brought to the rooftop. The space serves not only as an area for outdoor activities but also as a place for residents to enjoy views of the surrounding area.

At the heart of the design is The Ombak, a semi-public open space located on the rooftop. The name, which means “wave” in Bahasa Indonesia, is reflected in the curved forms of the rooftop structures. These wave-like elements are designed in response to the sun’s direction, providing shade throughout the day while creating a comfortable space beneath. They also help reduce the urban heat island effect by supporting a cooler microclimate around the buildings.

Moving the backyard to the rooftop is not only a response to limited outdoor space in urban housing, but also an effort to encourage interaction among residents. By making the rooftop accessible as a shared area, the design creates opportunities for social activities and strengthens the sense of community. The wave-shaped structures further establish a consistent architectural identity, while highlighting the role of shared outdoor spaces within the housing complex.

The rooftop design also contributes to the environmental performance of each house. The shaded areas help limit direct sunlight and reduce heat entering the interiors. This can lower the need for air conditioning and artificial lighting, supporting more energy-efficient living. Through the integration of natural elements, shared spaces, and climate-responsive design, Ombak House presents an approach to housing that considers both residents’ comfort and environmental impact.


 

Ombak House

Ombak House menghadirkan pendekatan berbeda dalam memanfaatkan ruang terbuka pada hunian perkotaan. Area yang biasanya menjadi halaman belakang rumah-rumah di Asia Tenggara kini dihadirkan di bagian atap. Ruang ini tidak hanya menjadi area untuk beraktivitas di luar ruangan, tetapi juga menawarkan kesempatan bagi penghuni untuk menikmati pemandangan sekitar.

Elemen utama dalam perancangan ini adalah The Ombak, yaitu ruang terbuka semi-publik yang berada di area atap. Nama Ombak, yang berarti gelombang laut dalam bahasa Indonesia, menjadi inspirasi bagi bentuk-bentuk lengkung pada struktur atap. Bentuk tersebut dirancang dengan mempertimbangkan arah datangnya sinar matahari. Selain memberikan naungan, konfigurasi ini membantu mengurangi efek pulau panas perkotaan (urban heat island effect) dan menciptakan iklim mikro yang lebih nyaman di bawahnya.

Pemindahan fungsi halaman belakang ke area atap tidak hanya menjadi respons terhadap keterbatasan ruang terbuka di lingkungan perkotaan. Pendekatan ini juga bertujuan mendorong interaksi antarpenghuni. Dengan menghadirkan ruang bersama di area atap, hunian menyediakan ruang bagi berbagai aktivitas sosial. Bentuk lengkung diterapkan pada setiap atap sekaligus membangun identitas arsitektur kawasan. Kehadirannya menegaskan peran ruang terbuka sebagai bagian dari kehidupan bersama di dalam lingkungan hunian.

Pengolahan atap juga berperan dalam meningkatkan kenyamanan termal di dalam rumah. Area yang terlindung dari paparan matahari langsung membantu mengurangi panas yang masuk ke ruang dalam. Kondisi ini berpotensi menekan kebutuhan penggunaan pendingin udara dan pencahayaan buatan. Dengan demikian, desain tidak hanya memperhatikan kualitas ruang, tetapi juga efisiensi energi dalam penggunaan sehari-hari.


 

Architecture Firm: Arti Design Studio
Design Principal(s): Raynaldo Theodore, Natasha Astari
Design Team: Muhammad Farhan, Haqeem Hisyam

Name of Project: Ombak House
Location: South Jakarta, Indonesia
Design Period: June 2021 – April 2022
Construction Period: 2022 – 2023 (phase 1); 2024 – 2025 (phase 2)
Site Area: 1,567 sqm.
Floor Area: 568 sqm.
Contractor: Adi Surya Konstruksi
Structure: Harmoni Bangun Sejahtera
Lighting: Erreluce

Photographer: Mario Wibowo

 

PRODUCT SOURCES
Flooring: Sehati
Walls: Bata Gapit
Concrete: Jayaboard
Paint: Dulux, Arturo
Waterproofing: Sika
Facade Finishing: Skayu, Milan Ecowood, CTI Shingles, Dulux Paint
Glass: Asahimas
Steel: Magnus Aluminium
Doors: Custom
Windows: Magnus Aluminium
Ceiling: Jayaboard
Roof: CTI Shingles
Stairs: Custom
Sanitary: Kohler, Toto
Kitchen: Sawdust Furniture (collaboration)
Furniture: Sawdust Furniture
General Lighting: Erreluce
LED Lighting: Erreluce
Down Lighting: Erreluce


 

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