We build for islands, not showrooms.
Ancra is the construction and development arm of the Archi Studio ecosystem, dedicated to design-led, technically precise building in Koh Samui and beyond. Where typical contractors focus only on speed, we balance engineering rigour, tropical durability, and investment logic, so your villa or resort performs just as well in year fifteen as it does on handover day.
From steep hillside plots with complex drainage to beachfront sites exposed to salt and heavy wind, we treat every project as a long-term asset, not a one-off build. Our teams blend international construction standards with deep local experience to deliver structures that are comfortable to live in, efficient to maintain, and resilient in Koh Samui’s climate.
From concept to concrete – one coordinated stack
Ancra is not just a builder you call after design is finished. We plug into the process from the first feasibility sketch. Working closely with Archi Studio, we review altitude, slope, access, drainage, and zoning before anyone promises unit counts or sales areas, so every masterplan you see is filtered through real construction logic.
Road gradients that actually work, villa pads that are stable, retaining walls that make sense, and service routes that can be installed and maintained without drama – that’s our baseline. Whether you’re on site or managing investment from overseas, you deal with one accountable team guiding you from design to permits to build.

Design-aware construction management
Ancra was created to close the gap between beautiful drawings and buildable, compliant reality on Koh Samui. Our leadership team oversees both technical detailing and on-site logistics, making sure what is specified by Archi Studio can be poured, installed, and maintained within island constraints – from hillside access and crane reach to material delivery and storage.
What we bring to your project
End-to-end coordination – design, permits, build
Island-ready structures for humidity, salt and monsoon rain
Deep experience with hillside, coastal and multi-unit sites
Local crews, global expectations
Our site teams are trained for complex earthworks, marine-aware structures and integrated MEP systems. From controlled cut-and-fill and engineered retaining walls to carefully detailed roofs and envelopes, every decision is made with Koh Samui’s climate, codes and long-term maintenance in mind.
On-the-ground strengths
Hillside engineering & retaining systems
Marine-minded concrete & steel detailing
MEP, pools and infrastructure coordinated with design
