Automating on-site construction with robotics and software.

Joined June 2021
1 Photos and videos
Monumental retweeted
My talk "A love letter to pi", about what is working and not working for me in having AI help me write better software faster. (if you only care about pi zap to 13m00s)
Replying to @salar
A love letter to Pi by @lucasmeijer
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Monumental retweeted
Superb night!
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Bootstrapping agentic systems by @fjakobs
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Monumental retweeted
A love letter to Pi by @lucasmeijer
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Safer systems with the help of Claude by @BvdBijl
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Over 500 people signed up to join the event, way beyond the capacity we have at our office. The days before the meetup, I started getting random messages from people asking me if I could get them or their friends in, as if this was the hottest club in town. It turned out to be a spectacular event, thanks to the amazing crowd but most of all the fantastic talks by @fjakobs, @lucasmeijer, and our own @BvdBijl. They have graciously agreed to publish their talks online on our new YouTube channel so that everyone can learn and catch up with the incredible future we live in.
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Monumental retweeted
We decided to organize a meetup around agentic coding last week. We're talking about it non-stop at @BuildMonumental, we've been doing internal sessions to learn from each other, so why not invite a couple others as an experiment?
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Monumental retweeted
Even today, it's incredible to me that we've been able to go from that prototype just a couple years back to where we are today. Our robots are deployed and building the walls for houses, canal walls, hotel walls, and electricity stations every day.
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It's so fun to read a post like this and see the earliest videos of what we built and have never shared before. They make you half embarrassed and half proud, which is a probably the right balance.
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Niall, one of our first hardware engineers, just wrote an amazing post about his journey, on dropping out of his Masters (highly recommended for many talented people!) and joining @BuildMonumental in the first very months of being founded.
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The 24h build wasn't the only first in this project: we also built our first soldier courses bringing us closer to not just solving labor shortages, but also improving aesthetics in the built environment.
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The Netherlands, like most of the world, is going through a massive energy transition. The amount of solar panels, heat pumps, electric vehicles, and other changes to the energy mix mean that the Dutch will need to build 48.000 (!) of these substations to support the loads on the electrical grid in the next 15 years.
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Monumental retweeted
A couple weeks ago, we ran our first 24h non-stop build with our robots at @BuildMonumental (maybe in the world?), running for 36 hours straight to do the brickwork for a transformer substation.
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Monumental retweeted
It’s okay, these robot bricklayers aren’t taking ANY humans’ jobs! @ On today’s brand-new TWiST, @Alex chats with @Salar of @BuildMonumental, about the brick-layer shortage that has sparked demand for the startup’s construction-bots. Find out why it’s so difficult to make construction robots play nice together, why Salar thinks it’s so important for startups to tackle large-scale, real-world problems, and why we don’t just need HOUSING but beautiful housing that inspires residents, in this TWiST 500 interview. PLUS we’re chatting with @Seasats CEO Mike Flanigan about the next generation of ocean drones. From their HQ in beautiful San Diego, CA, Mike and his team are getting entirely free of Chinese components, and trying to make products for the US military that are both functional and, dare we say, beautiful? All that PLUS @Jason takes some of your pressing Founder Q’s from around the Web. 🎥 Watch the full episode here 👇
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Monumental retweeted
3 Dec 2025
Excited to share that I joined Monumental. We’re building affordable and beautiful housing (and canal walls) through software and robotics. We’re currently building in NL and the UK. If you’re based here, ambitious, and interested in real-world robotics, let me know!
So incredibly proud of the work our team has done rebuilding Amsterdam's canal walls, together with our partners at Dura Vermeer.
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Monumental retweeted
Work really doesn't get more meaningful than this. We're still rapidly growing our team with 15 open roles, including our first UK based (!) one. It's a great time to join: monumental.co/jobs
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It's genuinely magical to see hundreds of meters of canal walls, in the oldest parts of town, at Nieuwmarkt and Da Costakade, built by us and knowing that they'll be around for centuries to come.
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Monumental retweeted
The fact this works at all is a testament of our incredible computer vision work that automatically compensate for the waves and continuous movement on water. (Internally codenamed "chicken mode".)
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17 Sep 2025
Great interview of the mighty @salar by @mariogabriele on automating construction and more beauty in everyday building. (link in next tweet)
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17 Sep 2025
The Generalist's @mariogabriele sat down w/ CEO @salar for an unmissable conversation about @BuildMonumental’s mission to shake the construction industry out of its decades-long stagnation to make beautiful buildings faster with robots: generalist.com/p/building-be…
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