39 by Sansiri: Boutique Phrom Phong Condo Full Review 2026

If you have been apartment hunting around Sukhumvit and feel like every condo looks the same, 39 by Sansiri is the building that will snap you out of that daze. Tucked away on Sukhumvit Soi 39, just a short walk from Phrom Phong BTS, this low-rise boutique project has been quietly attracting a loyal crowd of tenants who want something different from the cookie-cutter high-rise experience. It is small, deliberate, and full of character. But is it right for you? Let us break it all down.

Location: Soi 39 and the Phrom Phong Lifestyle

Sukhumvit Soi 39 is one of those streets that long-term Bangkok residents swear by. It runs deep, connecting Sukhumvit Road all the way to Petchaburi Road, and it is lined with restaurants, cafes, serviced apartments, and international schools. You are a five to seven minute walk from Phrom Phong BTS station, which puts you right in the middle of Bangkok's most popular expat neighborhood.

The EmQuartier and Emporium malls are practically on your doorstep. Benchasiri Park, one of central Bangkok's best green spaces, is across the street from those malls. Fuji Super and Villa Market are both within walking distance for groceries. If you have kids, schools like The First Steps International Preschool and Bangkok Prep are nearby.

Here is a real scenario: imagine you work in Asoke or Silom. Your morning commute on the BTS is two to four stops. After work, you grab dinner at one of Soi 39's dozens of Japanese, Italian, or Thai restaurants, then walk home through a quiet, tree-lined street. That is the daily life 39 by Sansiri offers.

Building Overview: What Makes 39 by Sansiri Different

Developed by Sansiri, one of Thailand's most established property developers, 39 by Sansiri was completed in 2010. It is a low-rise condominium with only eight floors and around 60 units total. That small unit count is a big deal. It means the building feels private, the pool is never crowded, and you actually get to know your neighbors.

The architecture has a modern, minimalist vibe that has aged well. Large windows, clean lines, and quality finishing materials were standard even in the base units. Common areas include a swimming pool, a fitness room, and a small garden area. There is 24-hour security with key card access, CCTV coverage, and a reception desk.

One thing to keep in mind: because the building is small, facilities are modest compared to mega-projects like Park 24 or The Emporio Place. If you want a rooftop infinity pool, a co-working space, and a sauna, this is not the building for you. But if you value peace, privacy, and a sense of community, it punches well above its weight.

Unit Types, Sizes, and Rental Prices in 2026

Units at 39 by Sansiri are generally spacious by Bangkok condo standards. One-bedroom units typically range from 48 to 55 square meters, while two-bedroom units come in around 75 to 85 square meters. There are a few larger configurations as well, though those hit the market less frequently.

As of 2026, average rent for a one-bedroom unit at 39 by Sansiri falls between 28,000 and 38,000 THB per month, depending on floor level, furnishing quality, and whether the landlord has done recent renovations. Two-bedroom units generally command 45,000 to 65,000 THB per month. According to market data from DDproperty, the broader Phrom Phong area sees average one-bedroom condo rents of 25,000 to 40,000 THB per month, making 39 by Sansiri competitively priced for the neighborhood.

Let me give you a practical example. A friend recently signed a lease on a renovated one-bedroom unit on the sixth floor, fully furnished with a washer-dryer and a proper kitchen. She is paying 35,000 THB per month on a one-year contract. The unit gets great natural light and has a small balcony overlooking the soi. For that price in Phrom Phong, she feels like she got a deal compared to similar units in nearby high-rises.

How 39 by Sansiri Compares to Nearby Condos

Phrom Phong is packed with condos, so it helps to see how 39 by Sansiri stacks up against other popular options on or near Soi 39. Here is a side-by-side look at some common picks.

• 39 by Sansiri: 2010 | 60 | 48-55 | 28,000-38,000 | 5-7
• Noble Solo: 2008 | 120 | 40-50 | 22,000-32,000 | 8-10
• Siamese Gioia: 2017 | 197 | 35-45 | 25,000-35,000 | 5-7
• The Emporio Place: 2014 | 223 | 65-80 | 45,000-65,000 | 3-5
• Bright Sukhumvit 24: 2015 | 580 | 42-52 | 25,000-35,000 | 4-6

What jumps out from this comparison is that 39 by Sansiri offers more space per unit than most newer builds in the area, and the low unit count means you are not sharing an elevator with hundreds of people every morning. The Emporio Place is a tier above in terms of luxury and facilities, but you are paying significantly more. Noble Solo is cheaper but older and further from the BTS. Siamese Gioia is a solid newer option, but the units are smaller.

Think about a couple relocating to Bangkok from Singapore. They are used to compact but high-spec apartments. At 39 by Sansiri, they can get a genuine 50-plus sqm one-bedroom with room for a home office setup, something that is hard to find in newer buildings without jumping to a two-bedroom price point.

Who Is This Building Best Suited For?

39 by Sansiri is not trying to be everything to everyone, and that is exactly its strength. It works best for a specific type of renter.

If you are a single professional or a couple who values quiet living over flashy amenities, this place is a natural fit. The low-rise, low-density setup means you will rarely wait for an elevator and the pool area actually feels like yours. It also works well for remote workers who need a calm environment at home but want the option to walk to cafes and restaurants when cabin fever hits.

Families with young children can make it work in a two-bedroom unit, especially since the soi has several international preschools and kindergartens within easy reach. However, if you have older kids who need more space, you might outgrow it quickly.

Consider this scenario: a digital nomad who splits time between Bangkok and Bali. She wants a condo she can leave for a few weeks without worrying, in a building with good security and a small enough community that the juristic office actually recognizes her face. 39 by Sansiri is that building.

Things to Watch Out For

No building is perfect, and honesty matters more than hype when you are about to sign a lease. Here are a few things to keep in mind with 39 by Sansiri.

First, the building is over 15 years old now. While Sansiri projects are generally well maintained, the age means you should inspect individual units carefully. Some owners have done full renovations with modern kitchens and updated bathrooms. Others have not touched the unit since 2010. The difference in living experience between a renovated and original unit is significant, so always ask for recent photos or do an in-person viewing.

Second, the fitness room is small. If you are serious about working out, you will probably want a gym membership nearby. Fortunately, there are several options in the Phrom Phong area, including chains like Fitness First at EmQuartier.

Third, parking is limited. If you own a car, confirm availability before signing. Many tenants in this area rely on the BTS and motorbike taxis, so it is not always a dealbreaker, but it is worth checking.

Finally, because there are only around 60 units, availability can be tight. Popular units get snapped up quickly, especially well-renovated one-bedrooms in the 30,000 to 35,000 THB range. If you find something you like, do not sit on it for a week expecting it to still be there.

39 by Sansiri remains one of Phrom Phong's best-kept secrets for renters who want a boutique, low-density living experience in the heart of Bangkok's most established expat neighborhood. It will not wow you with a rooftop bar or a co-working lounge, but it will give you a quiet, spacious home on one of Sukhumvit's best sois. If that sounds like your style, it is absolutely worth a look. Start your search at superagent.co to browse current listings at 39 by Sansiri and compare real-time rental prices across Phrom Phong.