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Overview of B Square Rama9 - Mengjai in Wang Thonglang, Bangkok

B Square Rama9 - Mengjai is a house and townhouse project, developed by Sansiri, located at 9 B Square Rama 9, Wang Thonglang, Bangkok, 10310 Thailand. Construction of B Square Rama9 - Mengjai was completed in Jan 2014. House and townhouse comprises of 7 units.

Details and highlights B Square Rama9 - Mengjai
Welcome to B Square Rama 9, a unique home-office project with a contemporary architectural design in a Modern Loft style, presents its outstanding by using a large mirror wall to allow the natural light and warmth into the house. It also comes with spacious living areas that can be converted into other functions according to your preferences, allowing you to design the most use of every square inch of all 4 floors. It features 5 bedrooms with 7.4 meters wide in front of the house with 3 car parking spaces. Apart from that, you will enjoy your living at the clubhouse as well as you will feel at ease with a 24-hour security system and CCTV.

B Square Rama 9 is positioned in a prime location of Bangkok metropolis, surrounded by numerous amenities, including government centers, educational institutions, hospitals, and shopping centers. These nearby amenities include KIS International School, Regent's International School, The Demonstration School of Ramkhamhaeng University, Ramkhamhaeng University, Esplanade Cineplex Ratchadaphisek, Robinson Ratchadapisek, The Mall Ramkhamhaeng 3, Praram 9 Hospital, Piyavate Hospital, etc. Furthermore, it is conveniently located with easy access to several destinations since it is close to Chalong Rat Expressway, Thailand Cultural MRT, Phra Ram 9 MRT, and Huai Khwang MRT.

Project Information
B Square Rama 9 is classified as a home-office project consisting of 78 residential units, covering an area of approximately 15.4 rai. It is located at Soi Saha Kan Pramun, Pracha Uthit Road, Wang Thonglang, Wang Thong Lang, Bangkok. The project was developed by Sansiri and completed in 2014.

House Types and Details
- A 4-Story Home Office: It consists of 5 bedrooms and 6 bathrooms. The living area starts at 400-410 sq.m., and the plot size ranges from 50-52 sq. wah.
- A 4-Story Home Office: It consists of 5 bedrooms and 8 bathrooms. The living area starts at 1,000 sq.m., and the plot size ranges from 90 sq. wah.

Project Facilities
- Clubhouse
- 24H Security System
- CCTV
- Car Parking

Direction to the Project
- To get to the project by car, you can start from KIS International School by heading south onto Soi Kesini Ville with a distance of about 210 meters. Then, turn left onto Pracha Uthit Road and continue straight for about 800 meters. After that, turn left onto Soi Saha Kan Pramun and continue for another 500 meters, and then you will find the project on the right.

- To get to the project by public transportation, you can take the MRT service at the Thailand Cultural MRT, the nearest station to the project. When getting off the station, you can use the motorbike service directly to the project. It takes approximately 3.9 kilometers, or about 8 minutes to reach there.
Available Units

B Square Rama9 - Mengjai for sale: 6 available units from S$ 685,852 to S$ 1,992,420.
B Square Rama9 - Mengjai for rent: 3 available units from S$ 3,256 to S$ 4,981 per month.

Facilities

Facilities at B Square Rama9 - Mengjai include security.

Market stats

The average sale price at B Square Rama9 - Mengjai is S$ 1,893 per sqm.
This is 22.2 % uptrend current average sale price in Wang Thonglang (S$ 1,549 per sqm) and 49.8 % uptrend the average price in Bangkok (S$ 1,264 per sqm).
sales prices at B Square Rama9 - Mengjai are 7.1 % downtrend past year average price.

The average rent price at B Square Rama9 - Mengjai is S$ 10 per sqm.
This is 16.6 % uptrend current average rent price in Wang Thonglang (S$ 8 per sqm) and 5.1 % uptrend the average price in Bangkok (S$ 9 per sqm).

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Available units at B Square Rama9 - Mengjai
Features
  • Security
Parking and Lifts
  • Parking type: Conventional
  • Charging stations on site: no
Management
  • Pets: Cats and dogs any size
Previous Sales at B Square Rama9 - Mengjai
Sold Date Sold Price Price/Sqm Bedrooms Bathrooms Size Floor Furnished View Ownership
21/04/2025 ฿ 14,900,000 ฿ 37,250/m² 5 6 400 m² - Partly Furnished City View -

Market insights

For sale S$ 282,793 S$ 1,550/sqm -11.1 % Evolution compared to June 2025 187 Townhouses for sale in Wang Thonglang, Bangkok
The average price for sale of townhouses in Wang Thonglang is S$ 282,792. Compare to a year ago (June 2025) this represents a fall of -11.1 % and a fall of -11.2 % since the beginning of the year (January 2026). The average price per square meter for sale in Wang Thonglang is S$ 1,549/sqm, 22.5 % higher than the Bangkok median of S$ 1,264/sqm. The average price in Wang Thonglang for townhouses for sale with 2 bedrooms is S$ 139,637, S$ 295,539 for 3 bedrooms and S$ 302,539 for 4 or more bedrooms.
For rent S$ 1,491 S$ 9/sqm +17.9 % Evolution compared to June 2025 116 Townhouses for rent in Wang Thonglang, Bangkok
The average price for rent of townhouses in Wang Thonglang is S$ 1,490. Compare to a year ago (June 2025) this represents a rise of +17.9 % and a rise of +5.0 % since the beginning of the year (January 2026). The average price per square meter for rent in Wang Thonglang is S$ 8/sqm, 9.9 % lower than the Bangkok median of S$ 9/sqm. The average price in Wang Thonglang for townhouses for rent with 3 bedrooms is S$ 1,566 and S$ 1,499 for 4 or more bedrooms.
Frequently Asked Questions
Frequently Asked Questions
  • B Square Rama9 - Mengjai has 6 units for sale starting from S$ 685,852 up to S$ 1,992,420.
  • B Square Rama9 - Mengjai has 3 units for rent starting from S$ 3,256 / month up to S$ 4,981 / month.
Location
Projects Nearby B Square Rama9 - Mengjai
Project Name
Location
Number of units
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Monthly Rentals
Year Built
Completion Status
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Baan Klang Muang Rama 9-Ladprao
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S$ 260,547 - S$ 344,458
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Baan Klang Muang S-Sense Rama 9 Ladprao
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S$ 241,389 - S$ 379,326
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Dec 2012
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S$ 191,578 - S$ 191,578
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Commune 80
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S$ 107,284 - S$ 118,395
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The Honor Ekamai-Ramindra
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