Overview
The XXXIX by Sansiri (The Thirty-Nine) is a timeless icon of Sukhumvit 39. Completed in 2016, it set the standard for modern luxury with its distinctive Sandstone Cladding facade that ages beautifully compared to painted concrete.
With 178 units, it is exclusive and private. It is famous for its "Walkable Luxury" location—just 250m from The EmQuartier—making it one of the most convenient high-end residences for Japanese expats and executives who refuse to drive in Bangkok traffic.
Developer
Sansiri considers this one of their "Flagship" achievements. The material selection—from the imported stone in the lobby to the herringbone floors in units—reflects the top tier of their portfolio.
Location & Transit
You are in the "Golden Zone" of Phrom Phong.
| Station | Line | Distance | 🚶 Walk | 🏍️ Motorbike |
|---|---|---|---|---|
| BTS Phrom Phong | Sukhumvit | 250m | 3 min | 1 min |
| EmQuartier | Mall | 250m | 3 min | N/A |
Commute Logistics: The location at the start of Soi 39 is critical. You avoid the notorious gridlock that plagues condos situated 1km deeper into the soi (like near Fuji Super 2).
Nearby Landmarks
- The EmQuartier — 250m (Fashion, dining, and cinema).
- Benjasiri Park — 350m (Morning runs).
- Samitivej Hospital — 1.2km (Accessible via Soi 39 shortcuts).
Unit Types
| Type | Size | Notes |
|---|---|---|
| 1 Bedroom | 50 – 59 sqm | Large, rectangular layouts with movable partitions. |
| 2 Bedroom | 80 – 118 sqm | The most liquid rental unit in the building. |
Facilities
The Podium:
- Pool: A sleek infinity pool that offers privacy despite being in the city center.
- Gym: High-spec equipment with views of the soi.
Design:
- Timelessness: The building uses classical proportions with modern materials, ensuring it doesn't look "dated" like many 2010-era buildings.
Pros
- Location — The best location in Soi 39, period.
- Quality — Sansiri's flagship specs (stone, double glazing).
- Demand — Always full; Japanese tenants love this building.
- Architecture — The sandstone facade is unique and prestigious.
Cons
- Price — Very high resale price; low rental yield due to high asset cost.
- Traffic — Entering Soi 39 from Sukhumvit can be slow during peak hours (but you are close to the exit).
- No Pets
The Bottom Line
The XXXIX by Sansiri is the "Phrom Phong Prestige." If you want to walk to EmQuartier in 3 minutes and live in a building that commands instant respect, this is the blue-chip choice.
Last verified: January 28, 2026. Data sourced from Sansiri and physical site audit.
Source: Sansiri