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Raj Mansion Sukhumvit 20

Raj Mansion Sukhumvit 20

33 Sukhumvit 20 Alley, Sukhumvit Road, Khlong Toei Subdistrict, Khlong Toei District, Bangkok, 10110

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Project Type

Condo

EIA Permission

In Progress

Quantity

27 Unit

Completed

1992

Floor Plan

No information

Project Location

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Project Concept

Raj Mansion Sukhumvit 20 is shaped by an “Urban Sanctuary” design idea - prioritizing privacy and calm within one of Bangkok’s busiest residential and lifestyle corridors. Instead of a typical high-rise condo image, the project leans toward a mansion-scale character, creating a more home-like atmosphere that suits long-stay residents, working professionals, and expatriate tenants seeking quiet comfort in the city center.

The architecture focuses on clean proportions and a restrained, timeless palette. Warm-toned materials and classic surfaces are used to keep the building’s look durable over time - a practical point for investors who value long-term rentability over short-lived trends. Inside, the planning emphasizes usable layouts and airy circulation. Natural light and well-placed openings are key elements to reduce the enclosed feeling often found in dense urban residences.

Location logic supports the concept: Sukhumvit 20 connects efficiently to both Sukhumvit Road and Rama 4, with quick access to BTS Asok and MRT Sukhumvit, plus major lifestyle nodes such as Terminal 21 and the EmQuartier area. The design therefore favors everyday convenience - compact, functional entry and common areas that support fast routines - rather than oversized, showy facilities that may not translate into real daily value.

Project Highlights

Raj Mansion Sukhumvit 20 sits in Sukhumvit Soi 20, Khlong Toei - a central residential pocket that balances city convenience with a calmer living feel. The location works well for end-users seeking a quieter lane off Sukhumvit, and for investors targeting expatriate tenants who prefer ready-to-live neighborhoods close to offices and lifestyle hubs.

  • Prime Sukhumvit 20 setting with quick access to dining and daily conveniences around Asoke-Phrom Phong, including Terminal 21, EmQuartier and Emporium, plus Benjakitti Park within a short drive
  • Two-rail connectivity: near BTS Asok and MRT Sukhumvit (approx. 1.2-1.5 km), enabling flexible commuting across Sukhumvit and Rama 4 business areas
  • Multiple access routes linking Sukhumvit, Asoke and Rama 4, which can reduce dependence on a single entry-exit point during peak traffic
  • Privacy-focused positioning: a mansion-style condominium that tends to suit residents who value lower density and a more home-like atmosphere than highly commercial towers
  • Investor angle: mid-Sukhumvit remains a resilient rental market, especially for tenants working in Asoke-Phrom Phong, supporting rental liquidity and value preservation

Description

Raj Mansion Sukhumvit 20 is located at 33 Khlong Toei, Khlong Toei, Bangkok 10110, in Sukhumvit 20, a central residential area between Asok and Phrom Phong. The project is a High Rise condominium completed in 1992 and developed by Raj Mansion Co., Ltd. It is known for large residential units that appeal to families and expatriates seeking spacious living space in central Sukhumvit.

The project consists of 1 building with 24 floors and approximately 42 residential units, offering a high level of privacy. Parking is available for residents. Unit types mainly include 2-bedroom, 3-bedroom, and penthouse layouts, with notably generous usable space compared with many newer condominiums in the same area.

Facilities generally include a swimming pool, fitness center, children's play area, passenger elevators, and parking area. Security features include 24-hour security guards, CCTV, and controlled access. The project is about 900 meters from BTS Phrom Phong and around 1.1 kilometers from BTS Asok. Nearby landmarks include Emporium, EmQuartier, Terminal 21, and Benjakitti Park, making it suitable for both long-term residence and rental investment in a prime Sukhumvit location.

Project management is handled by the condominium juristic person. For a nearby project, see Ivy Thonglor.

Price Trend

Raj Mansion Sukhumvit 20 in 2026 sits in a “prime location, not-new pricing” pocket of the Phrom Phong-Asok area. Accessibility supports leasing demand, with BTS Asok around 1.0 km away and BTS Phrom Phong around 1.2 km, attracting office workers and expatriate tenants who prioritize central Sukhumvit convenience.

  • Resale price per unit (typical 70 sq.m.): about THB 10.5 - 12.0 million
  • Average selling price: about THB 150,000 - 170,000 per sq.m.
  • Average rent (70 sq.m.): about THB 45,000 - 55,000 per month

Rental Yield (quick math): Buy at THB 11.2M and rent at THB 50,000 per month. Annual rent = 50,000 x 12 = THB 600,000. Yield = 600,000 ÷ 11,200,000 = 5.36% p.a. (before common fees, taxes, and vacancy).

Capital gain outlook: Given building age and ongoing new supply in the Asok-Phrom Phong corridor, price appreciation is typically gradual rather than explosive. A reasonable base case is 1 - 3% per year, with better upside for well-maintained or renovated units. The investment case leans toward income stability, as the per-sq.m. entry price is generally below newer nearby projects, making it more suitable for cash-flow focused investors than short-term speculators.

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