eiris HAUS by Sansiri: A New Well-Living Condo in Bangkok's T77 Community – Launching Soon

Launching Soon: eiris HAUS is a new project that has not yet officially opened for sale. Prices and promotions will be announced at launch. SIC Siam Interchange is an authorised sales agent for eiris HAUS — register with us to receive official information first.

Bangkok's T77 community in On Nut has long been one of the city's most recognisable residential neighbourhoods for expat families. Now, a new low-rise project is joining it: eiris HAUS, a joint development between Sansiri, one of Thailand's largest property developers, and Japan's Tokyu Group.

The project was formally announced in mid-October 2026 and is launching soon. As an authorised sales agent, SIC is now taking early registrations from interested buyers. In this review, we look at what has been officially announced, what is still pending, and who this project is likely to suit.

eiris HAUS at a Glance

All details are based on the developers' announcements and are subject to change.

Location Review: Living in T77, On Nut

T77 is a master-planned community created by Sansiri off Sukhumvit 77 (On Nut Road), next to Sansiri's own head office. Over the past decade it has grown into a self-contained neighbourhood with low-rise condominiums, green spaces, and daily conveniences within the same area. It is a popular address for both Thai and foreign residents, particularly families.

Bangkok Prep, shops and everyday amenities

The community is home to Bangkok Prep International School, the Habito Mall community shopping centre, and medical facilities — the main reasons many families shortlist this area. For parents considering Bangkok Prep, living within the same community can simplify the daily school run. Please note that proximity to a school does not affect admission; families should contact the school directly about places and the specific campus.

BTS On Nut and getting around

eiris HAUS is marketed as being near BTS On Nut. It is important to understand what this means in practice: the T77 community sits some distance back from Sukhumvit Road, so it is not a station-side location. Depending on the exact building position, residents may walk, cycle or use other local transport to reach the BTS. We recommend buyers check the official map pin, test the route at peak hours, and ask the developer whether any community shuttle will serve residents before deciding.

For buyers who commute mainly by car, the area offers road access toward Sukhumvit, Ekkamai, Thonglor and the expressway network — but, as anywhere in Bangkok, rush-hour traffic should be factored in.

Design Concept: Wellness and Low-Rise Living

eiris HAUS follows the "Well-Living" concept in Sansiri's marketing, and Tokyu describes the common areas as being designed around a wellness theme. Announced facilities include:

• Swimming pool surrounded by landscaped greenery
• Sauna
• Cold plunge
• Steam room
• Pilates space

These facilities are aimed at everyday recovery and relaxation — the kind of amenities usually found in a fitness club rather than a standard condo gym. The final facility list, sizes and opening arrangements should be confirmed in the official project brochure.

With three seven-storey buildings and 320 residences, eiris HAUS continues the low-rise, resort-style format that Sansiri has used for its other "HAUS" projects in T77. Buyers who prefer a quieter residential setting over a high-rise tower may find this format appealing, although the actual living experience will depend on unit position, views and building layout.

Unit Types and Layouts

According to the announcement, eiris HAUS will offer a broad range of layouts:

• 1-bedroom units from approximately 35 sq.m.
• Larger family layouts up to 4 bedrooms of approximately 140 sq.m., suitable for larger or multi-generational households

The availability of 3- and 4-bedroom condominium units is relatively uncommon in Bangkok's new-condo market, which makes eiris HAUS worth a look for families who want condo convenience without compromising on space.

Detailed floor plans, ceiling heights, kitchen layouts and the exact unit mix have not yet been published. SIC will share confirmed floor plans as soon as they are released.

Pet-Friendly Living: What Owners Need to Know

One of the project's strongest selling points is pet-friendly living. According to the developer, two of the three buildings are designed to allow residents to live with pets.

Pet owners should note:

• Pet ownership will likely be limited to the designated buildings — not every unit in the project.
• Most Thai condominiums apply rules on pet type, size, weight and number, as well as use of lifts and common areas.
• The official pet policy for eiris HAUS has not yet been published.

If you have a pet, ask for the written pet rules and confirm that your chosen unit is in a pet-allowed building before making a reservation.

Launch Timeline: eiris HAUS Is Launching Soon

eiris HAUS has not yet opened for sale. According to the developers, a show unit is scheduled to open in November 2026, with sales planned to start in 2027. Construction completion and handover dates have not yet been announced.

Prices and launch promotions will be announced at the official launch. As an authorised sales agent for eiris HAUS, SIC will share the official price list, promotions and floor plans with registered buyers as soon as they are released.

The best step for interested buyers right now is to register early with SIC, so you are among the first to receive launch information and can plan your visit to the show unit.

Who Is eiris HAUS Best Suited For?

• Expat families — especially those with children at, or considering, Bangkok Prep, who want a larger condo layout in a community setting.
• Pet owners — looking for a new condo where pets are officially permitted (in designated buildings).
• Wellness-minded residents — who will make regular use of the sauna, cold plunge, steam and Pilates facilities.
• Foreign owner-occupiers — seeking a long-term home in an established, international-friendly neighbourhood.
• Long-term investors — interested in the area's family and expat tenant base. Note that rental demand, returns and capital growth are not guaranteed and should be assessed with up-to-date market data.

It may suit less well buyers who need to walk to a BTS station every day, or who are looking for a ready-to-move-in unit in the near term.

What Buyers Should Consider Before Reserving

Potential advantages

• Established T77 community with school, retail and medical facilities nearby
• Joint development by Sansiri and Tokyu, partners on multiple previous projects
• Low-rise, resort-style format
• Wide unit range, including rare 4-bedroom condo layouts
• Wellness-themed facilities and pet-friendly buildings

Points to check

• Actual distance and travel options to BTS On Nut
• Official price list, promotions and payment schedule (at launch)
• Construction and handover timeline
• Common-area fee, sinking fund and parking allocation
• Pet rules and eligible buildings
• Foreign quota availability (see below)

Foreign Buyer Considerations in Thailand

Foreigners can generally own condominium units in Thailand on a freehold basis, provided total foreign ownership in a project does not exceed 49% of the total unit floor area, and other legal requirements are met — including bringing the purchase funds into Thailand from overseas in foreign currency with the correct supporting documents.

Before reserving, foreign buyers should confirm:

• Remaining foreign-quota availability for their chosen unit
• Fund transfer and documentation requirements
• Transfer fees, taxes and who pays each item
• Payment milestones and terms in the reservation and sale-and-purchase agreements

SIC's multilingual team can guide you through this process. For legal or tax advice specific to your situation, we recommend consulting a qualified professional.

SIC's Assessment

eiris HAUS combines several features that are hard to find together in Bangkok: an established international-family neighbourhood, low-rise buildings, large family layouts, pet-friendly buildings and a wellness-focused facility programme — backed by two well-known developers.

The main considerations are the distance to BTS On Nut and the fact that the project is launching soon, so pricing, promotions and timelines will only be confirmed at launch. For families and pet owners who value community and space over station proximity, it is a project worth watching closely as the official launch approaches.

Interested in eiris HAUS?

SIC Siam Interchange is an authorised sales agent for eiris HAUS. Register your interest with our multilingual team to receive the official price list, launch promotions, floor plans and foreign quota information as soon as they are released.

Register your interest with SIC → · LINE: @sicthailand · Tel: +66 95 576 8829

Comparing options? Explore other condominiums for sale with our multilingual property team.

Frequently Asked Questions

Where is eiris HAUS located?
eiris HAUS is in Sansiri's T77 community in the On Nut / Sukhumvit 77 area of Bangkok. The official project address and map location will be confirmed by the developer.

How much is eiris HAUS?
Prices will be announced at the official launch. Register with SIC, an authorised sales agent, to receive the price list as soon as it is released.

Are there any launch promotions?
Launch promotions will be announced together with pricing. Register with SIC to be notified first.

Is eiris HAUS pet-friendly?
Yes. According to the developer, two of the project's three buildings are designed for pet-friendly living. Specific pet rules have not yet been published.

Is eiris HAUS close to BTS On Nut?
The project is marketed as near BTS On Nut, but it is not directly next to the station. Buyers should check the route and transport options themselves.

Is eiris HAUS near Bangkok Prep?
Yes. Bangkok Prep International School is located within the T77 community. School admission is handled separately by the school.

What types of units will be available?
Layouts range from 1-bedroom units of about 35 sq.m. to 4-bedroom units of about 140 sq.m. Detailed floor plans are not yet published.

When will eiris HAUS launch and be completed?
A show unit is scheduled to open in November 2026, with sales planned to begin in 2027. A completion date has not yet been announced.

Can foreigners buy a unit at eiris HAUS?
Foreigners can generally own condominium units freehold in Thailand within the 49% foreign quota and subject to legal requirements. Quota availability for eiris HAUS should be confirmed at the time of booking.