In-Depth Review: Khun By Yoo : Design Luxury Living , Near BTS Thong Lo
Khun By Yoo is a design-driven condominium positioned for buyers who prioritize curated interiors, privacy and an address inside Thonglor’s quieter side streets. Located off Sukhumvit 55 (Soi Thong Lo), the project brings a boutique-luxury sensibility to one of Bangkok’s most dynamic residential corridors. The immediate soi atmosphere blends low-rise shophouses and high-end restaurants with discreet residential pockets: this gives residents the convenience of Thonglor’s restaurants, cafés and wellness offerings while avoiding the busiest nightlife strips.
On design and delivery, Khun By Yoo follows the YOO philosophy of lifestyle-led interiors: emphasis on tailored materials, thoughtful spatial planning and an aesthetic that aims to age gracefully. The development is configured as a single tower with luxury finishes, delivered with facilities that cater to both everyday living and social entertaining. Its target profile is upwardly mobile Thais, expatriates and design-conscious investors seeking long-term capital appreciation and rental demand in Thonglor.
Key Project Summary (Quick Facts for Decision-Making)
- Developer: Sansiri Public Company Limited (in collaboration with YOO design)
- Project Type: High-rise, approximately 25–35 floors, single building, estimated 120–180 units total
- Location: Sukhumvit 55 (Soi Thong Lo), Khlong Tan Nuea, Watthana District (approximately 300–400 meters from the mouth of the soi)
- Accessibility: Approximately 1.2 kilometers from BTS Thong Lo (approximately 15 minutes on foot)
- Room Types and Sizes:
- 1-Bedroom (approximately 45–55 sq.m.) — includes the 49 sq.m. units
- 2-Bedroom (approximately 80–120 sq.m.)
- 3-Bedroom and larger / Penthouses (approximately 130–300+ sq.m.)
- Updated Pricing 2569: Sale price starting from 49 sq.m. / 18,500,000 Baht / Rental price starting from 49 sq.m. / 65,000 Baht
- Parking: Approximately 60% of total units (typical for boutique luxury projects in Thonglor)
Location Deep Dive: Why Does Living in "Thong Lo" Make Sense?
Thonglor remains one of the most desirable inner-city neighbourhoods for affluent Thais and expatriates because it combines lifestyle density with pockets of calm. The street grid off Sukhumvit 55 includes tree-lined lanes, private residences and service-oriented retail such as boutique groceries, high-end salons and design studios. Proximity to central Sukhumvit means easy access to Phrom Phong and Asoke business nodes, while the soi itself is home to many sought-after cafés, restaurants and wellness operators that attract long-term residents rather than just visitors.
Shopping & Community Malls
- The Commons Thonglor — A relaxed, open-air community hub with artisanal food vendors, cafés and weekend lifestyle events; suits residents who prefer casual dining and communal dining areas (approximately 300–450 meters).
- J Avenue Thonglor — A compact shopping and dining complex with grocery options, casual restaurants and health & beauty outlets; useful for daily needs and late-night convenience (approximately 350–500 meters).
- EmQuartier / Emporium — Premium malls on Sukhumvit that provide flagship retail, grocery options and international cinemas; slightly further but still within a short drive or a couple of BTS stops for full-service shopping (approximately 2–2.5 km).
Green Spaces & Healthcare
Green space in central Thonglor is limited but accessible: Benjasiri Park (near Phrom Phong) is a preferred green lung for joggers and families and is typically a short drive or two BTS stops away (approximately 1.5–2.5 km). For healthcare, private hospitals such as Samitivej Sukhumvit are within approximately 2–3 km and provide internationally accredited services. The project’s location balances access to wellness infrastructure with a quieter, residential street environment.
Project Facilities
Khun By Yoo’s facilities are designed to reflect a boutique-luxury ethos: functional, design-forward and focused on resident comfort rather than spectacle. Facilities are compact but curated, suitable for both entertaining and daily life.
- Sky Infinity Pool — A rooftop or high-level pool with city views, ideal for relaxation and small social gatherings while providing an escape from street-level bustle.
- Fitness Centre & Yoga Studio — Well-equipped gym and dedicated wellness rooms for classes; valuable for time-poor residents who prefer on-site exercise options.
- Residents’ Lounge / Sky Bar — Semi-private entertaining spaces that support resident networking and hospitality without relying on external venues.
- Concierge & 24-hour Security — Staffed lobby and security systems that provide package handling, guest reception and peace of mind for full-time residents and absentee owners.
- Private Garden & Children’s Play Area — Landscaped green pockets and family-friendly zones that improve daily life for households with children.
- Private Screening Room / Meeting Room — Small-scale media room and flexible workspaces for hosting guests or remote work meetings.
Value Analysis: Why Is the 1-Bedroom (Approximately 49 sq.m.) Worth Investing In?
The 49 sq.m. one-bedroom represents the most accessible entry point into a design-forward project like Khun By Yoo. Layouts at this size typically separate living and bedroom zones well, offer a full kitchen and practical storage, and are more functional than compact studio units. For investors, a 49 sq.m. unit strikes a balance between a price point that is within reach of many expatriate and local executives and a living area that appeals to tenants who expect comfortable long-stay accommodation rather than micro living.
Primary tenants in Thonglor include affluent Thai professionals, young families and international tenants — notably Western expatriates and a substantial Japanese community who work in nearby business districts or run regional headquarters in Bangkok. These tenants prefer Thonglor for its walkable dining options, international schools within a short drive and the feel of a self-contained lifestyle neighbourhood. Based on the provided pricing (sale: 18,500,000 THB for 49 sq.m.; rent: 65,000 THB/month), the gross rental yield is approximately 4.0–4.5% annually — competitive for inner-Sukhumvit luxury assets and supported by persistent demand for high-quality, well-located accommodation in Thonglor.
Frequently Asked Questions (FAQ) — Latest Update
Q: How far is Khun By Yoo from BTS Thong Lo and what is the walk like?
A: The project is approximately 1.2 kilometers from BTS Thong Lo, usually a 15 minute walk depending on your pace and the exact building entry. The walking route is mixed-use with cafés, small retail and some uneven sidewalks, so many residents prefer a short motorbike taxi during peak rain or heat.
Q: Does the 49 sq.m. unit include parking and storage?
A: Parking is allocated on a per-unit basis according to developer policy; boutique luxury projects in Thonglor typically provide around 0.6 parking spaces per unit on average, and 49 sq.m. units often qualify for one covered space plus communal bicycle storage. Confirm specific allocations with the sales team.
Q: Who is the typical tenant profile for this size and area?
A: Typical tenants are young to mid-career expatriates (Western and Japanese) and Thai professionals who value lifestyle convenience, proximity to international schools and ready access to restaurants and wellness services. Lease terms commonly range from 6–24 months, with many corporate tenants preferring 12-month agreements.
Q: How liquid is a resale in this part of Thonglor?
A: Resale liquidity for design-led units in Thonglor is generally healthy, though it depends on unit size and fit-out quality. One-bedroom design units sell more quickly than penthouses because they match broader tenant demand and are easier for investors to re-let.
Q: Are there noise or traffic considerations on the soi?
A: While the project sits on a quieter soi segment, late-night activity in parts of Thonglor can generate noise, especially on weekends. Choosing a high-floor unit or a residence with good acoustic treatment will materially reduce street-sourced noise impacts.
Interested in a Viewing or Property Consultation? Contact Connex Property
If you’d like to view Khun By Yoo or get a tailored investment analysis for Thonglor, our Connex Property team provides data-driven valuations, comparable market rents and negotiation support. We arrange viewings, verify title information and help model expected cashflow for different holding periods.
📞 Tel: 099-019-9900
💬 Line: @connexproperty
📘 Facebook: Connex Property
📷 Instagram: connex.property
🎵 Youtube: @connex_property
🎵 TikTok: @connexproperty_
💚 WhatsApp: +66 99 019 9900
"Find the property that's right for you… easy, complete, and done at Connex."
Researched and analyzed by Connex Property – Professional Real Estate Agent, your trusted partner for buying, selling, and renting.