If you have been apartment hunting around Sukhumvit and someone mentions The Diplomat 39, pay attention. This is one of those buildings that quietly sits at the top of a lot of rental shortlists, especially among expats working in the CBD and professionals who want a prestigious address without the chaos of lower Sukhumvit. Located on Sukhumvit Soi 39, it puts you right in the heart of Phrom Phong, one of Bangkok's most livable neighborhoods. But is it actually worth the premium rent? Let's break it down.

Location and Getting Around from The Diplomat 39

The Diplomat 39 sits on Sukhumvit Soi 39, which is one of the longer and more established sois in the area. The building is roughly a 7 to 8 minute walk to BTS Phrom Phong, which is completely manageable, though in Bangkok's midday heat you might prefer grabbing a motorcycle taxi from the soi entrance for 20 baht.

What makes this location genuinely great is everything within walking distance. EmQuartier and Emporium are right at the BTS station, giving you world class shopping, dining, and a surprisingly good supermarket in Gourmet Market. Fuji Super is also on Soi 39 itself, which is a lifesaver for Japanese groceries and imported goods.

For families, Soi 39 is home to several international schools and language centers. If you work around Asoke, Nana, or even Silom, you are just a few BTS stops away. Picture this: you leave The Diplomat 39, hop on a motorcycle taxi to Phrom Phong BTS, and you are walking into your Sathorn office in under 25 minutes. That is a commute most Bangkokians would envy.

The Building and What You Actually Get

The Diplomat 39 was developed by Noble Development, one of Thailand's more reputable developers. It is a freehold property completed in 2019, so everything still feels relatively new. The lobby makes a strong first impression, with high ceilings, marble finishes, and the kind of quiet professionalism that appeals to its target demographic.

Units come in one bedroom, two bedroom, and three bedroom configurations. One bedrooms start around 35 square meters, while the larger units push past 100 square meters. The finishes are a step above what you find in many Sukhumvit condos. Think engineered wood flooring, quality kitchen fittings, and bathrooms that actually feel like they belong in a luxury building rather than just being marketed as one.

Facilities include a rooftop pool with solid city views, a well equipped gym, a sauna, and a residents' lounge. The pool area is not massive, but it is well maintained and rarely overcrowded. One thing residents consistently mention is how quiet the building is. The walls are thick, the hallways are clean, and management is responsive. If you have lived in a Bangkok condo where the juristic office ignores you, you will appreciate the difference here.

Rent Prices at The Diplomat 39

Let's talk numbers because this is where it gets real. For a one bedroom unit at The Diplomat 39, expect to pay somewhere between 30,000 and 45,000 THB per month depending on the floor, furnishing level, and whether you negotiate directly with the owner. Two bedrooms typically range from 55,000 to 80,000 THB, and the larger three bedroom units can go from 85,000 to 120,000 THB.

These prices put it firmly in the upper end of Phrom Phong rentals. You are paying a premium compared to nearby buildings like Noble Refine or Siri at Sukhumvit. But the build quality and location justify it for many renters, particularly those on corporate housing packages. If you are comparing luxury options across the Sukhumvit corridor, our Sukhumvit condo rental guide covers how different buildings stack up by price and location.

A real example: a couple relocating from Singapore recently locked in a two bedroom on the 15th floor for 65,000 THB per month on a one year lease. That included full furnishing from the owner. Deals like this are common if you search at the right time and avoid peak moving season around August and September.

Who Is The Diplomat 39 Best For?

This building works best for professionals and couples who want a polished living experience without the resort style sprawl of older Sukhumvit developments. It is also popular with Japanese expats given the neighborhood's Japanese community, restaurants, and shops along Soi 39.

Families with young children might find the smaller units limiting, but the two and three bedroom layouts are genuinely spacious by Bangkok standards. If you are considering family friendly options more broadly, check out our guide to family condos in Bangkok for a wider comparison.

It is less ideal for nightlife seekers or budget renters. If you want to be steps from Soi 11 or Thonglor's bar scene, you will find yourself grabbing a taxi more often than you'd like. But if your priority is a calm, upscale home base with easy access to the BTS and top tier shopping, The Diplomat 39 delivers.

Things to Watch Out For

No building is perfect, and there are a few things renters should know. First, some units face other buildings rather than open sky, so always ask for photos of the actual view before signing. A unit on the 8th floor facing the soi will feel very different from one on the 20th floor facing south.

Second, parking is limited. If you own a car, confirm with the landlord that a parking spot is included in the lease. Some owners hold two spots while others have none. Third, the walk to the BTS is fine in the cool season but can feel long from June through October when afternoon rain is a daily event. Budget for the occasional Grab ride or keep an umbrella permanently in your bag.

The Diplomat 39 earns its reputation as one of the better luxury rentals on Sukhumvit Soi 39. It is well built, well managed, and well located. If you are seriously considering it, do not rely on listing photos alone. Visit in person, check multiple units, and compare lease terms across owners. For a faster search with verified listings and real time pricing, try browsing available units at superagent.co to see what is currently on the market.