ABC Flats

ABC FLATS

Isso Architects

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

ARCHITECTS
Isso Architects

LEAD ARCHITECT
Wibisono Soegih, Stephanie Tatimu

LEAD TEAM
Arini Zairina Putri

GENERAL CONTRACTOR
Pt. Hage Primadi Konstruksi

MANUFACTURERS
Jotun, Muka Surface, Propan, Taco, Toto

DESIGN TEAM
Rangga Cakra Birawa

INTERIOR CONTRACTOR
Silla Home

PHOTOGRAPHS
Ernest Theofilus

AREA
423 m²

YEAR
2025

LOCATION
Jakarta, Indonesia

CATEGORY
Housing

ABC Flats
© Ernest Theofilus

English description provided by the architects.

ABC Flats is a co-housing located in the heart of the dense Cilandak neighborhood in South Jakarta.

This three-story, solid concrete building occupies a 175m² plot of land, with a total built area of 423m².

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

The co-housing offers three types of rooms, each with an ensuite bathroom, totaling 11 rooms. Additionally, the building features a rooftop area designed as a small pantry and communal space for residents.

Isso Architects have infused the building with a language of subtle fluidity, blending curving and bending geometries to create a soft, harmonious, and playful composition.

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

The repetition of cylindrical elements adds a rhythmic quality to the structure, making it both visually unique and functional—offering a refreshing contrast to the conventional houses along the street.

Upon entering, visitors are greeted by a solid wooden floor beneath a triple-height staircase, complemented by a skylight that allows natural light to filter through, casting dynamic shadows on the walls.

A long reflective pond enhances the experience, emphasizing the interplay of light, air, and water.

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

The architects liken the flats' view to a slowly turning kaleidoscope, where the scene shifts by the hour—or sometimes, with the blink of an eye.

The use of wood, clean lines, and a neutral palette complements the raw concrete exterior, enhancing the balance between solidity and openness.

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

Following the fluidity of the façade, the interior walls are also sculpted with curved forms.

Some sections of the railing wall are detached, creating a dynamic interaction of light and movement from the inhabitants.

ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus

This play of motion enriches the spatial experience and improves the livability of the compact space.

The straightforward layout is divided into three longitudinal sections: stairs, aisles, and rooms.

ABC Flats
ABC Flats
© Ernest Theofilus

The arrangement is kept as neat as possible, with all mechanical and electrical systems consolidated within a central shaft to simplify maintenance.


ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus


ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus
ABC Flats
© Ernest Theofilus


ABC Flats
First Floor Plan
ABC Flats
Second Floor Plan
ABC Flats
Third Floor Plan
ABC Flats
Roof Deck Plan
ABC Flats
Section