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Overview of Siam Penthouse 1 in Khlong Toei, Bangkok

Siam Penthouse 1 is a condo project, located at Siam Penthouse 1 Condominium, 51 Soi Sukhumvit 8, Khlong Toei, Bangkok 10110, THA. Construction of Siam Penthouse 1 was completed in Dec 1981. Condo comprises of 10 floors and 25 units.

About Siam Penthouse 1
Discover boundless personal happiness at Siam Penthouse 1, a ready for occupancy luxury condominium project located in a residential area in the heart of Bangkok, encircled by shopping malls, community malls and various amenities catering to all lifestyles in urban society, such as Central World, Siam Paragon, Siam Discovery, Pantip Plaza Pratunam and Terminal 21. In addition, the development takes advantage of multiple urban transportation modes, whether Chalerm Maha Nakhon Expressway, Phetchaburi MRT, and Asok BTS, which is 2.5 kilometers away.

Moreover, Siam Penthouse 1 is a quality society distinguished by its modern building offering only 48 residential units. The residences range from 1 bedroom to 4 bedroom units with usable areas starting at 50 square meters. Away from the hustle and bustle and truly unwind yourself in a soothing atmosphere with all the residents' facilities the project has to offer, including an oversized swimming pool, a car park, a 24-hour security system and many others.

Project Information
Siam Penthouse 1 is located at 51 Sukhumvit Road, Khlong Toei, Khlong Toei, Bangkok. It is a 10-storey high-rise condominium project consisting of 48 residential units. The project was completed in 1981.

Room Types and Details
1 Bedroom (50-60 sq.m.)
2 Bedrooms (80 sq.m.)
3 Bedrooms (120-150 sq.m.)
4 Bedrooms (160 sq.m.)

Project Facilities
Communal Pool
Communal Garden Area
Car Parking
24H Security
CCTV (Video Surveillance)

Direction to the Project
Traveling by public transport: The nearest station to the project is Asok BTS. When you leave the station, walk southeast along Din Daeng Road for 58 meters, and use a motorcycle taxi to travel further to the project. It will take about 11 minutes to travel or approximately 2.5 kilometers away.

Traveling by car: You can start from Asok Montri Intersection, head northwest along Sukhumvit Road (Highway 3) for about 700 meters, and turn left onto Soi Sukhumvit 8 for about 290 meters. The project will be on the left.
Available Units

Siam Penthouse 1 for sale: 3 available units from USD224,617 to USD460,616.
Siam Penthouse 1 for rent: 23 available units from USD748 to USD3,593 per month.

Facilities

Facilities at Siam Penthouse 1 include gym, sauna and swimming pool.

Market stats

The average sale price at Siam Penthouse 1 is USD2,853 per sqm.
This is 50.1 % downtrend current average sale price in Khlong Toei (USD5,719 per sqm) and 32.7 % downtrend the average price in Bangkok (USD4,239 per sqm).
sales prices at Siam Penthouse 1 are 1.4 % uptrend past year average price.

The average rent price at Siam Penthouse 1 is USD9 per sqm.
This is 52.9 % downtrend current average rent price in Khlong Toei (USD21 per sqm) and 46.8 % downtrend the average price in Bangkok (USD18 per sqm).
rental prices at Siam Penthouse 1 are 3.2 % uptrend past year average price.

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Available units at Siam Penthouse 1
Price Bedrooms Bathrooms Size Floor Publisher
For rent 4 bedrooms condo in Khlong Toei, Bangkok
USD1,948 USD12/m²
4
2
160 m²
8
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FreshProperty - a brand of PropertyScout
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For rent 3 bedrooms condo in Khlong Toei, Bangkok
USD1,349 USD8/m²
3
2
160 m²
7
Premium
108Siam Sales and Rentals
Contact
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For rent 3 bedrooms condo in Khlong Toei, Bangkok
USD3,596 USD17/m²
3
3
200 m²
2
Premium
FazWaz Bangkok Sales and Rentals
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For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD899 USD11/m²
2
1
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
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For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD809 USD10/m²
2
2
80 m²
1
Premium
FazWaz Bangkok Sales and Rentals
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For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD749 USD9/m²
2
1
80 m²
8
Premium
FazWaz Bangkok Sales and Rentals
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For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD839 USD10/m²
2
1
80 m²
7
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD809 USD10/m²
2
1
80 m²
1
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD899 USD11/m²
2
1
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD749 USD9/m²
2
1
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD839 USD10/m²
2
1
80 m²
8
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 3 bedrooms condo in Khlong Toei, Bangkok
USD1,798 USD11/m²
3
2
160 m²
8
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 3 bedrooms condo in Khlong Toei, Bangkok
USD1,349 USD8/m²
3
3
160 m²
6
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD794 USD9/m²
2
86 m²
Premium
Beyond Horizon
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For rent 4 bedrooms condo in Khlong Toei, Bangkok
USD1,708 USD9/m²
4
171 m²
Premium
Beyond Horizon
Contact
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For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD749 USD9/m²
2
2
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD749 USD9/m²
2
1
80 m²
2
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 4 bedrooms condo in Khlong Toei, Bangkok
USD1,798 USD9/m²
4
2
185 m²
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 4 bedrooms condo in Khlong Toei, Bangkok
USD1,948 USD12/m²
4
2
160 m²
9
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
USD749 USD9/m²
2
1
80 m²
5
Premium
108Siam Sales and Rentals
Contact
Show more
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Features
  • Gym
  • Sauna
  • Swimming pool
Parking and Lifts
  • Charging stations on site: no
Management
  • Pets: All allowed
Key facts about properties sold in Siam Penthouse 1
  • Average price per square meter: ฿91,600
  • Average selling time: 193 days on the market before being sold.
  • Trend to take advantage of: These properties sold for 2% below their original listing price.

Don't miss this investment opportunity in Siam Penthouse 1. This is the perfect time to purchase your next property in an exclusive location. Contact

Previous Sales at Siam Penthouse 1
Sold Date Sold Price Price/Sqm Bedrooms Bathrooms Size Floor Furnished View Ownership
11/03/2021 ฿15,000,000 ฿88,235/m² 3 2 170 m² 5 Fully Furnished City View Foreign Quota
26/03/2019 ฿14,900,000 ฿92,546/m² 4 2 161 m² 9 Fully Furnished City View Foreign Quota

Market insights

For sale USD368,930 USD5,720/sqm -0.9 % Evolution compared to August 2025 13,266 Condos for sale in Khlong Toei, Bangkok
The average price for sale of condos in Khlong Toei is USD368,929. Compare to a year ago (August 2025) this represents a fall of -0.9 % and a fall of -6.3 % since the beginning of the year (January 2026). The average price per square meter for sale in Khlong Toei is USD5,719/sqm, 34.9 % higher than the Bangkok median of USD4,239/sqm. The average price in Khlong Toei for condos for sale for studio is USD154,470, USD219,441 for 1 bedroom, USD481,092 for 2 bedrooms, USD1,030,157 for 3 bedrooms and USD2,278,039 for 4 or more bedrooms.
For rent USD1,363 USD22/sqm +0.9 % Evolution compared to August 2025 35,205 Condos for rent in Khlong Toei, Bangkok
The average price for rent of condos in Khlong Toei is USD1,362. Compare to a year ago (August 2025) this represents a rise of +0.9 % and a fall of -6.0 % since the beginning of the year (January 2026). The average price per square meter for rent in Khlong Toei is USD21/sqm, 12.9 % higher than the Bangkok median of USD18/sqm. The average price in Khlong Toei for condos for rent for studio is USD640, USD908 for 1 bedroom, USD1,754 for 2 bedrooms, USD2,891 for 3 bedrooms and USD4,827 for 4 or more bedrooms.
Frequently Asked Questions
Frequently Asked Questions
  • MRT Sukhumvit, MRT Khlong Toei, MRT Phetchaburi, MRT Lumphini, MRT Queen Sirikit National Convention Centre and BTS Asok are close to Siam Penthouse 1.
  • Siam Penthouse 1 has 3 units for sale starting from USD224,617 up to USD460,616.
  • Siam Penthouse 1 has 23 units for rent starting from USD748 / month up to USD3,593 / month.
Location
Projects Nearby Siam Penthouse 1
Project Name
Location
Number of units
Sales Prices
Monthly Rentals
Year Built
Completion Status
Sirinrat Tower
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2
N/A
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Jan 1994
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N/A
Jul 2028
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Khlong Toei, Bangkok
1
N/A
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Jan 1992
Completed
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Ruamsuk
Khlong Toei, Bangkok
52
N/A
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Dec 1993
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Baan Sukhumvit
Khlong Toei, Bangkok
10
USD185,801 - USD206,778
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Sep 2026
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BAAN SUKHUMVIT 36
Khlong Toei, Bangkok
29
USD194,791 - USD209,775
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Khlong Toei, Bangkok
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N/A
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Sep 2026
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Baan Rom Yen Ekkamai 2
Khlong Toei, Bangkok
5
N/A
USD2,247 - USD2,337
Jan 2009
Completed
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Baan Sasida
Khlong Toei, Bangkok
5
USD7,491,983 - USD7,491,983
USD2,547 - USD3,596
Sep 2026
Completed
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Promsuk Condominium
Khlong Toei, Bangkok
5
N/A
USD2,397 - USD2,996
Jan 1989
Completed
More Details