Tonson One Residence

Tonson One Residence is a luxury High Rise condominium located at 11 Soi Tonson, Lumphini, Pathum Wan, Bangkok 10330. The project sits in the prime Ploenchit - Langsuan - Chidlom neighborhood, one of Bangkok’s most prestigious residential areas surrounded by embassies, office towers, and upscale lifestyle destinations. It is approximately 1.1 kilometers from BTS Phloen Chit Station and around 1.2 kilometers from BTS Chit Lom Station.

The development features 1 high-rise building with 29 floors and around 80 residential units, with parking spaces for about 140 percent of total units. Unit types include 2-bedroom, 3-bedroom, 4-bedroom, duplex, and penthouse layouts, with usable areas starting at approximately 57 square meters. The project is designed for residents seeking privacy, low-density living, and long-term value in a rare freehold central location.

Facilities include a lobby, swimming pool, fitness center, sauna, relaxation areas, landscaped garden, and private lift access for selected units. Security systems include 24-hour security personnel, CCTV, key card access, and controlled entry. The project was completed around 2023 and developed by One Origin Co., Ltd. Management is positioned to match luxury residential standards, making it suitable for both end-users and investors looking for an exclusive asset in central Bangkok.

Tonson One Residence in 2026 sits in the Lumphini-Ploenchit pocket, a quiet Tonson Lane address with solid CBD connectivity. The project is around 900 m from BTS Ploenchit and about 1.0 km from BTS Chidlom. Compared with nearby liquid luxury stock such as Noble Ploenchit, this asset tends to suit end-users and investors comfortable with a smaller buyer pool but stronger privacy value.

• Resale price per unit: 1-bed 55 sq.m. averages THB 17.6M
• Price per sq.m.: ~THB 320,000 per sq.m.
• Average rent: ~THB 85,000 per month (12-month lease)

Rental yield (quick math): annual rent THB 85,000 x 12 = THB 1,020,000. Divide by purchase price THB 17,600,000 = 5.8% gross yield per year (before common fees and taxes). This is relatively attractive versus many CBD condos typically delivering about 3.5-5.0%.

Capital gain view: using a conservative Lumphini-Ploenchit growth assumption of 2-4% per year, pricing could move to roughly THB 326,000-333,000 per sq.m. within 12 months. For a 55 sq.m. unit, that implies a potential price gain of about THB 0.35-0.70M. Key risks are thinner liquidity and stronger negotiation in the luxury segment. Key supports are proximity to Lumpini Park and office demand around Ploenchit, which helps stabilize leasing.