Overview
One 9 Five Asoke-Rama 9 is the definitive "Mega-Project" of the New CBD. Completed in 2022 by TC Development, the project consists of two soaring 61-storey towers that have become a permanent fixture of the Rama 9 skyline. It was designed under the concept of a "Self-Sustaining Luxury Hub," dedicating over 8 rai of land to green space and landscape architecture.
The project is famous for its 100-meter swimming pool, one of the longest in Bangkok, and its extensive wellness facilities spanning over several floors. Located just 350 meters from MRT Phra Ram 9, it serves as a primary residential choice for professionals working in the nearby G Tower, Unilever House, and the Stock Exchange of Thailand. In 2026, it remains a top-tier investment asset with strong capital growth potential due to its proximity to the upcoming Orange Line interchange.
Developer
TC Development is recognized for executing large-scale, high-complexity residential projects. One 9 Five is their flagship achievement in the Rama 9 corridor. The building is managed to a luxury standard, with maintenance fees (CAM) currently set at 55 THB/sqm, ensuring the massive 8.6-rai landscape (designed by the award-winning Shma Company) remains in pristine condition.
Location & Transit
| Station | Line | Distance | Mode |
|---|---|---|---|
| MRT Phra Ram 9 | Blue | 350m | Walk (5 min) |
| ARL Makkasan | Airport Link | 1.4km | Moto (5 min) |
| Central Rama 9 | Retail Hub | 350m | Walk (5 min) |
Commute Logistics:
- CBD Proximity: Residents can reach the Asoke/Sukhumvit intersection in just 2 MRT stops or roughly 10 minutes by car outside of peak hours.
- Airport Connectivity: The proximity to the Makkasan Airport Rail Link makes this a preferred location for frequent international travelers and expats.
- Walking Neighborhood: The "New CBD" is highly walkable; within 500 meters, residents have access to premium groceries (Tops), cinemas, and the famous Jodd Fairs night market.
Building Facts
| Developer | TC Development |
| Completed | 2022 |
| Floors | 61 (Towers A & B) |
| Units | 1,911 |
| Ownership | Freehold |
Unit Types
| Type | Size | Notes |
|---|---|---|
| 1 Bedroom | 25.5 – 41 sqm | The Professional Choice. Compact but features 2.7m ceilings |
| 2 Bedroom | 55 – 68 sqm | Executive Standard. Efficient layouts with high-spec fitted kitchens |
| 3 Bedroom | 94 – 109.5 sqm | Family Sky Home. 60% of these are corner units with dual views |
| Penthouse | 194 – 271.5 sqm | Ultra-Luxury. Massive layouts on the highest floors (60-61) |
Interior Note: All units were delivered "Fully Fitted" with premium laminated flooring, built-in wardrobes, and high-efficiency air conditioning systems. The architectural design prioritizes corner-unit layouts (nearly 60% of all units), maximizing natural light and the city skyline views for which Rama 9 is famous.
Facilities
100m Swimming Pool: A record-breaking saltwater pool spanning between the towers, surrounded by a "forest ecosystem" garden designed to offer a haven from the urban hustle.
Wellness & Sports: The project includes a CrossFit Zone, a Boxing Area, a yoga studio, and a private spa, offering one of the most comprehensive fitness programs in any Bangkok condominium.
Sky Living: Both towers feature Sky Lounges and high-altitude bars, providing residents with 360-degree views of the Asoke-Rama 9 business district.
Pros
- Elite Facilities — 100m pool and 8-rai of park space are unrivaled in the area.
- New CBD Gateway — 5-minute walk to MRT Phra Ram 9 and major office towers.
- High Rental Yield — 6.3% gross yield (verified 2024-2025 data) driven by expat demand.
- Corner Unit Focus — Smart architectural design maximizes views for most residents.
Cons
- High Density — With nearly 2,000 units, the elevators and lobby can be busy.
- Traffic Noise — Units facing the main Rama 9 road can experience urban sounds.
- No Pets — Strict enforcement of the no-pet policy.
The Bottom Line
In 2026, One 9 Five Asoke-Rama 9 is the "Modern Urban Hub" of the New CBD. It is the perfect choice for professionals and investors who want the best facilities and the most strategic location in the Rama 9 district. If you prioritize "resort-style" living and immediate access to the MRT and luxury malls over the quiet of a low-rise soi, this is the definitive investment in Huai Khwang.
Last verified: January 11, 2026. Data sourced from TC Development and physical site audit.