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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.

Details and highlights 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 S$ 286,702 to S$ 587,930.
Siam Penthouse 1 for rent: 23 available units from S$ 955 to S$ 4,587 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 S$ 3,631 per sqm.
This is 50.3 % downtrend current average sale price in Khlong Toei (S$ 7,301 per sqm) and 32.9 % downtrend the average price in Bangkok (S$ 5,412 per sqm).
sales prices at Siam Penthouse 1 are 0.5 % uptrend past year average price.

The average rent price at Siam Penthouse 1 is S$ 12 per sqm.
This is 53.1 % downtrend current average rent price in Khlong Toei (S$ 26 per sqm) and 47.1 % downtrend the average price in Bangkok (S$ 23 per sqm).
rental prices at Siam Penthouse 1 are 1.9 % 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
S$ 2,485 S$ 15/m²
4
2
160 m²
8
Premium
FreshProperty - a brand of PropertyScout
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For rent 3 bedrooms condo in Khlong Toei, Bangkok
S$ 1,720 S$ 10/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
S$ 4,587 S$ 22/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
S$ 1,147 S$ 14/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
S$ 1,032 S$ 12/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
S$ 956 S$ 11/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
S$ 1,070 S$ 13/m²
2
1
80 m²
7
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 1,032 S$ 12/m²
2
1
80 m²
1
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 1,147 S$ 14/m²
2
1
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 956 S$ 11/m²
2
1
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 1,070 S$ 13/m²
2
1
80 m²
8
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 3 bedrooms condo in Khlong Toei, Bangkok
S$ 2,294 S$ 14/m²
3
2
160 m²
8
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 3 bedrooms condo in Khlong Toei, Bangkok
S$ 1,720 S$ 10/m²
3
3
160 m²
6
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 1,013 S$ 11/m²
2
86 m²
Premium
Beyond Horizon
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For rent 4 bedrooms condo in Khlong Toei, Bangkok
S$ 2,179 S$ 12/m²
4
171 m²
Premium
Beyond Horizon
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 956 S$ 11/m²
2
2
80 m²
5
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 956 S$ 11/m²
2
1
80 m²
2
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 4 bedrooms condo in Khlong Toei, Bangkok
S$ 2,294 S$ 12/m²
4
2
185 m²
Premium
FazWaz Bangkok Sales and Rentals
Contact
Show more
For rent 4 bedrooms condo in Khlong Toei, Bangkok
S$ 2,485 S$ 15/m²
4
2
160 m²
9
Premium
108Siam Sales and Rentals
Contact
Show more
For rent 2 bedrooms condo in Khlong Toei, Bangkok
S$ 956 S$ 11/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 S$ 471,467 S$ 7,302/sqm -1.6 % 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 S$ 471,466. Compare to a year ago (August 2025) this represents a fall of -1.6 % and a fall of -6.7 % since the beginning of the year (January 2026). The average price per square meter for sale in Khlong Toei is S$ 7,301/sqm, 34.9 % higher than the Bangkok median of S$ 5,412/sqm. The average price in Khlong Toei for condos for sale for studio is S$ 197,615, S$ 280,193 for 1 bedroom, S$ 614,843 for 2 bedrooms, S$ 1,316,011 for 3 bedrooms and S$ 2,906,116 for 4 or more bedrooms.
For rent S$ 1,742 S$ 27/sqm +0.1 % 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 S$ 1,741. Compare to a year ago (August 2025) this represents a rise of +0.1 % and a fall of -6.4 % since the beginning of the year (January 2026). The average price per square meter for rent in Khlong Toei is S$ 26/sqm, 12.9 % higher than the Bangkok median of S$ 23/sqm. The average price in Khlong Toei for condos for rent for studio is S$ 813, S$ 1,161 for 1 bedroom, S$ 2,242 for 2 bedrooms, S$ 3,680 for 3 bedrooms and S$ 6,175 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 S$ 286,702 up to S$ 587,930.
  • Siam Penthouse 1 has 23 units for rent starting from S$ 955 / month up to S$ 4,587 / month.
Location
Projects Nearby Siam Penthouse 1
Project Name
Location
Number of units
Sales Prices
Monthly Rentals
Year Built
Completion Status
Sirinrat Tower
Khlong Toei, Bangkok
2
N/A
S$ 4,163 - S$ 4,488
Jan 1994
Completed
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XELF by Sansiri
Khlong Toei, Bangkok
24
S$ 131,309 - S$ 761,863
N/A
Jul 2028
Off Plan
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Green Tower
Khlong Toei, Bangkok
1
N/A
S$ 1,337 - S$ 1,337
Jan 1992
Completed
More Details
Ruamsuk
Khlong Toei, Bangkok
52
N/A
S$ 3,440 - S$ 5,734
Dec 1993
Completed
More Details
Baan Sukhumvit
Khlong Toei, Bangkok
10
S$ 237,007 - S$ 263,765
S$ 496 - S$ 3,058
Sept 2026
Completed
More Details
BAAN SUKHUMVIT 36
Khlong Toei, Bangkok
29
S$ 248,475 - S$ 267,588
S$ 496 - S$ 3,058
Dec 1998
Completed
More Details
PAS Building
Khlong Toei, Bangkok
1
N/A
S$ 2,484 - S$ 2,484
Sept 2026
Completed
More Details
Baan Rom Yen Ekkamai 2
Khlong Toei, Bangkok
5
N/A
S$ 2,867 - S$ 2,981
Jan 2009
Completed
More Details
Baan Sasida
Khlong Toei, Bangkok
5
S$ 9,556,737 - S$ 9,556,737
S$ 3,249 - S$ 4,587
Sept 2026
Completed
More Details
Promsuk Condominium
Khlong Toei, Bangkok
5
N/A
S$ 3,058 - S$ 3,822
Jan 1989
Completed
More Details