Homes built as if we would live in them ourselves
Since 2012 we have built high-quality pool villas in Chiang Mai. Not the biggest developer, but the one people trust with the details, because every detail matters.
From renovating homes to building pool villas
We started with second-hand condos and houses. The homes we saw did not meet our own standards, so we began to build our own, as if we were going to live in them.
- 2012(2555)
Buyin Chiang Mai Limited Partnership starts by decorating and renovating second-hand homes.
- 2014(2557)
Our first own housing projects in Chiang Mai: Nam Phrae, Wang Tan Village and Chang Kian.
- 2018(2561)
Gymkhana at Wat Ket: homes closer to the city.
- 2021(2564)
The new company 999 Developments Chiangmai Co., Ltd., with larger projects: 999@Ban Wang Tan, 999@Gymkhana, 999@Ban Waen, 999@World Club Land, 999@Kad Farang, 999@Chang Kian and 999@Pa Daet.
- 2025(2568)
Chosen to build the official residence of the U.S. Consul General in Chiang Mai. More than 130 agents at our Agent Day at 999@World Club Land. Best Property Developer Chiang Mai at the nestopa Thailand Digital Property Awards.
- 2026(2569)
Three ultra-luxury pool villas sold, 180 million baht in total.
The most trusted, not the biggest
Our vision
To be known as the benchmark for quality in Chiang Mai real estate. Not the biggest, but the most trusted by those who value well-built homes, thoughtful design and personal service. When people think of quality homes in Chiang Mai, they think of us.
Our mission
To build homes for people who care about quality, not just price. Every detail matters, from the materials we use to the way we listen and adapt to customer feedback. We are not in it for volume. We are in it to do things right, with care, clarity and long-term commitment.
We aim to grow the company responsibly, but only as long as quality is never compromised.

Max, the customer in every meeting
Max is a teddy bear who sits in every 999 meeting. He is the customer: before we decide anything, we ask what it means for the people who will live in the house. Max is not a mascot. Max is the customer, always here, always first.
Read Max's storyBuilt as if we live in it
Every detail, from construction to handover
We care about every detail of the house, from the first day on site to the day we give you the keys.
Open, connected living
Our first house in Nam Phrae was a loft where every zone was connected, so wherever you are, you can see and talk to each other. Our villas keep that idea, with more space.
Modern and classic pool villas
White modern villas with façades for privacy, and classic villas with timeless architecture. Each project has its own character.
High-quality materials
We choose high-quality materials for every build, because the strength of the home is the foundation of a family's prosperity.
Our projects in Chiang Mai

999@World Club Land

999@Ban Waen

999@Kad Farang

999@Pa Daet

999@Ban Wang Tan

One team from your first visit to after-sales
Sales, design and quality checks, construction and after-sales: the same team in Chiang Mai looks after you before and after you buy.
Meet the teamRecent news from 999

A 999 Developments Home Becomes the U.S. Consul General’s Residence in Chiang Mai
14/07/2025
999 Developments Agent Day 2025: Real Estate Agents in Chiang Mai Connect Over Modern Pool Villas
07/10/2025
999 Developments: A Proven Success with 180 Million THB in Ultra-Luxury Pool Villa Sales in Chiang Mai
13/02/2026Book a viewing of a 999 pool villa
Or ask us anything. We reply within 1 working day, often sooner.
Opening hours: Monday to Saturday, 08:30 to 17:30
