Inside a Breathtaking Home Connected to the Sea

Built World Academy
1 follower
2 Video Views·Apr 18, 2026
It all started with simple questions, “what does the client need?”, “what kind of experience do we want to give?”, “what will the program be like?”. Sticking to the studio’s philosophy, the founder and principal architect, Kelvin, underscored their pragmatic approach. The answers to those questions were found instantaneously (as the client’s brief was also rather straight-forward); to accommodate a big family and able to endure the harsh nature of the sea
In a short-term project approach,
to bring users closer to nature
Matching the building with its location.
This house is particularly interesting, isn't it?
Jakarta is crowded, busy.
Then suddenly, there's one location connected by just one bridge.
Mantai Multiarah is like its own archipelago.
Near water, connected to a canal.
It's honestly very simple.
When we talked at the beginning,
Kelvin, I want a house that can accommodate a large family.
But what matters most to them is a home that brings peace and tranquility.
Hello, my name is Kelvin, founder and principal of Categono Design Studio.
And welcome to this house.
The concept of this house is transparency.
Because we want this openness,
There are several beams above here with spans of 20 meters.
Automatically, from a structural standpoint, the span is large, isn't it?
Basically, this whole thing is about kenepi,
Only these two bearing walls are holding it up.
The platform in the family room must also be supported by only one column.
Therefore, we need pre-stressed beams for its structure.
There are two minimalistic boxes at the front that we slide.
We want to keep that minimalistic box with something thin, narrow.
Therefore, we need a flat slab method,
where there are no beams left.
Immediately scratch one slab,
He also changed the lever.
Certainly with something that is very upright,
It's actually difficult on the field,
Because when pouring, it has to be extremely neat.
The material is also exposed material again.
So once it's opened, you must be honest and finish it right away.
We already knew from the beginning that we would use concrete.
Providing a solid and long-lasting feel.
Galvanized,
aluminum,
which does not rust easily due to the salty wind conditions.
Other materials are like natural stone, wood.
Providing balance in something solid,
There is also gentleness.
Selection of natural materials,
let's elevate with brass material
that can provide more contrast in color.
When we arrived at this house,
We will see two boxes that have shifted.
There is a brief sequence from the very first entry.
You will walk.
harassed by greening.
Feeling that there is a cantilever box covering it.
Suddenly brought into an open-air garden.
From there,
We are located in the middle of the building.
Enter the living room,
The first thing we immediately feel is the double-height ceiling.
Here we make all the glass.
Let the living room be accompanied by two natures.
There is a separation.
namely the living room, dining area, and kitchen.
This is actually the column supporting this platform.
So we camouflage ourselves with the shelves.
We always maintain a seamless atmosphere from indoor to outdoor.
With the same floor material,
The same wall material,
Everything was carried from the living room to the porch area.
pool, and then to the reservoir and canal.
We installed a sunken lounge,
made for barbecue.
So it can be enjoyed from different elevations.
It feels like we're soaking in a swimming pool.
but in a dry condition.
There are two wings.
That back wing is the living room.
public space
In front of it is more private.
There is a guest room there.
There are four children's rooms upstairs.
And there is a master bedroom connected to the courtyard.
In front of it, we are using a double-skin facade,
teak wood
Keep going upward.
to protect privacy,
But it still allows natural light to come in.
Facing westward in front,
So we must reduce the sun's heat.
But privacy still exists.
The skin system is flexible.
Can be opened and closed.
When the sun shines through the wooden screen,
Shadow is also good.
Below the living room,
That above is the family room.
As each one of them,
can be opened,
but connected directly.
There's actually one program that wasn't requested by the owner.
namely the pavilion at the very top.
The location is already excellent, right on Mutiara Beach.
Yet, no one has truly been able to see the open ocean directly.
So we were very lucky it was built.
And it's really just like the last room in this house.
The others are all so tall, though.
Suddenly, it was pressed there and kept going long like that.
Giving a cinematic feel,
Reframe this panoramic ocean view.
We are creating a water reflection.
where, when the sun arrives,
The wind could be less hot.
The room at the very top,
used at 5:30 a.m.
For example, it's already nearing sunset,
evening tea
It could become quite tense.
Continuing to be alone, staring at the horizon with no boundaries.
How do I feel?
The journey from this house is quite long.
We started it in 2020 during the COVID pandemic.
So we are the designers, the collaborators.
The contractor works very hard.
When it is finished, we see what we envisioned.
The same one that is already here,
Perhaps that is the feeling of pride.
with something still precise.
We also asked the owner about it yesterday.
As they seemed quite satisfied as well,
Just be thankful already.
Can you really trust that?
It's a blessing, lah.
