RealData · Condo Report Card
The BASE Garden Rama 9
huai-khwang
Price vs district
F
Bubble Index 137.91 · vs district avg
Transit
F
no transit data
Infrastructure
F
🏥 1 · 🏫 0 · 🛒 1
Flood risk
C
Level 3/5 · district baseline
Latest listing
฿3.30M · 34 m² · ฿97,059/m²
passionaryestate.com
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powered by data,
not influencers
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Building facts
- Floors
- 36
- Total units
- —
- Completed
- 2019
- Available now
- 82
The BASE Garden Rama 9
Welcome to a new living standard with The BASE Garden Rama 9, the latest project from Sansiri, where every square inch of the project is full of green space. Make your stay as if you are enjoying a vacation in a luxurious resort with an extensive range of facilities in the lobby, large swimming pools, fitness center, multi-purpose area, gardens, and 24-hour security systems.
Project developer
The BASE Garden Rama 9 Project is a project developed by Sansiri, the project completed in 2019.
Location and Transportation
The BASE Garden Rama 9 is located at 18 Rama 9 Road, Hua Mak, Bang Kapi District, Bangkok. The project is on the main road, Rama 9 Road, near Ramkhamhaeng intersection, which can be accessed from many routes, including Rama 9 Road, Ramkhamhaeng Road, Sukhumvit Road. The project is also approximately 1.4 km away from the Si Rat Expressway and the Airport Rail Link station. Therefore, you can get to the project both by cars and public transportation.
To get to the project by a private car, the project is on the Rama 9 Road heading to Bangkrapi District.
In case you prefer public transportation, you can get to the project by Airport Rail Link. Get off at Ramkhamhaeng Station, the nearest station, which is only 700 meters away. Then, head north to enter Ramkhamhaeng Road at Soi Uamorn Suk 7 for about 650 meters. Turn right at Ramkhamhaeng Intersection, go straight for about 100 meters before turning right to the project.
Project information
The BASE Garden Rama 9 is on an area of approximately 3 rai. The project is a 36-floor high-rise condominium containing 639 residential units and 1 unit for a shop. On each floor, there are 20 units maximum.
There are 2 room types in this project: 1 bedroom (26.5 - 34.75 sq m) and 2 bedrooms (49.75 - 55 sq m). They come fully fitted with a built-in kitchen set, partitions, air conditioners installed in the living room and bedroom, and a digital door lock system. Besides, the project also has a furniture package offered for those who want to choose the built-in furniture.
Facilities of the project considered distinctive as the design concept focuses on being in harmony with nature. You can enjoy green spaces in many areas throughout the project, such as the front garden, on the fifth floor, and the surrounding area, including natural decorative materials such as wood and marble that feel harmonious. The project provides a lobby with free wifi, freedom saltwater swimming pool, children's pool, a huge fitness center, outdoor recreation area, a treehouse, a multi-purpose area, passenger and freight elevator, and 24-hour security systems with CCTV, security guards, and access cards. The parking area can accommodate cars for 40 percent of the total number of units, not including double parking.
Listing activity
- Active listings
- 38
- Median days listed
- 38 days
- Longest listed
- 127 days
Resale liquidity
can I sell this again?73/100
Liquid
- Absorption
- 42%
- of supply cleared
- Time to sell
- ~0d
- median, when sold
- Based on
- 62
- listings tracked
We compute this from how much of this building's for-sale supply actually clears the market and how fast — tracking every listing from the day it appears to the day it disappears. A higher score means units here tend to find buyers; a low score warns that your exit could be slow. This is an availability signal, not a guarantee of sale price.
Retiree suitability
good place to retire?51/100
Fair for retirees
Healthcare
1 hospital/clinic within 1km
Air quality
AQI 53
Transit
no station nearby
Daily errands
1 supermarket within 1km
A retirement-focused read on the location: weighted toward nearby healthcare and clean air, then car-free transit and daily errands. Thailand's retirement (O-A/O-X) visa buyers weigh these very differently from young investors — this score reflects their priorities.
Market signals (hipflat-published)
Sale · median
USD 84,026
USD 2,518/sqm
▲ 14.7% YoY
Rent · median
USD 436/mo
USD 14/sqm
▲ 3.9% YoY
Rental yield
n=22 sale / 18 rentGross yield
5.70%
annualized · before tax & vacancy
Avg sale price
฿3.33M
Avg monthly rent
฿15,810
vs. mortgage (MRR 7.10%)-1.40ppyield is below the cost of mortgage money
MRR (Minimum Retail Rate) is Thailand's benchmark mortgage rate, published by Bank of Thailand. We use the most recent month's mean of MRR Min and Max (2025-07).
Air quality
3 months ago53
AQI
Moderate
PM2.5 53.0 μg/m³
Source: WAQI station Bodindecha Sing Singhaseni School, Bangkok, Thailand (โรงเรียนบดินทรเดชา (สิงห์ สิงหเสนี)). AQI is a 0–500 composite scale (US EPA). Values above 100 are unhealthy for sensitive groups; above 150 for everyone.
Ground stability
is the land sinking?L3/5
Moderate subsidence
Transitional outer zone or a historical subsidence hotspot. Rates have eased but are not negligible. District-level estimate from published InSAR and groundwater-monitoring studies — a relative long-term signal, not a per-building survey. Land subsidence amplifies the same areas' monsoon-flood risk over a 10–20 year horizon.
Cross-portal price comparison
medians across 3 portals| Portal | Sale median | n | Rent median | n |
|---|---|---|---|---|
| Hipflat | ฿3.56M | 20 | ฿16,740/mo | 18 |
| DotProperty | ฿2.99M | 1 | — | 0 |
| DDProperty | ฿3.30M | 1 | — | 0 |
Different portals can list the same condo at meaningfully different prices — agents pad listings, sellers pull old stock, prices drift. When portals disagree by more than ~10%, the lower number is usually the more recent / motivated seller.
Price trend · 13 months
USD 84,026
▲ 21.0% (vs Apr '25)
Available units (86)
| Price | /sqm | Bd | Ba | Size | Floor | Publisher |
|---|---|---|---|---|---|---|
| USD 78,853 | 2,389 | 1 | — | 33 m² | 17 | The One Residence ( Thailand ) |
| USD 83,183 | 2,521 | 1 | — | 33 m² | 17 | The One Residence ( Thailand ) |
| USD 135,014 | 2,547 | 2 | 1 | 53 m² | 11 | 108Siam Sales and Rentals |
| USD 80,400 | 2,594 | 1 | 1 | 31 m² | 6 | Connex Property |
| USD 81,008 | 2,613 | 1 | 1 | 31 m² | 6 | 108Siam Sales and Rentals |
| USD 139,153 | 2,626 | 2 | 1 | 53 m² | 11 | Connex Property |
| USD 87,009 | 2,637 | 1 | 1 | 33 m² | 23 | 108Siam Sales and Rentals |
| USD 89,676 | 2,638 | 1 | 1 | 34 m² | 34 | PropertyScout Great deals |
| USD 87,009 | 2,719 | 1 | 1 | 32 m² | 14 | PropertyScout Great deals |
| USD 88,509 | 2,855 | 1 | 1 | 31 m² | 15 | PropertyScout Great deals |
| USD 80,400 | 2,871 | 1 | 1 | 28 m² | 8 | Connex Property |
| USD 77,708 | 2,878 | 1 | 1 | 27 m² | 12 | 108Siam Sales and Rentals |
| USD 92,158 | 2,880 | 1 | 1 | 32 m² | — | FreshProperty - a brand of PropertyScout |
| USD 89,709 | 2,894 | 1 | 1 | 31 m² | 14 | PropertyScout Great deals |
| USD 98,710 | 2,903 | 1 | 1 | 34 m² | 12 | ThaiPropertyInvestor Co., Ltd. |
| USD 91,223 | 2,943 | 1 | 1 | 31 m² | 6 | 108Siam Sales and Rentals |
| USD 80,059 | 2,965 | 1 | 1 | 27 m² | 12 | Connex Property |
| USD 92,459 | 2,983 | 1 | — | 31 m² | 10 | Interhome Realty Estate Co.,Ltd |
| USD 158,716 | 2,995 | 2 | 2 | 53 m² | — | CBRE Thailand |
| USD 81,008 | 3,000 | 1 | 1 | 27 m² | 8 | FazWaz Bangkok Sales and Rentals |
| USD 99,010 | 3,000 | 1 | 1 | 33 m² | 21 | PropertyScout Great deals |
| USD 99,010 | 3,000 | 1 | 1 | 33 m² | 21 | 108Siam Sales and Rentals |
| USD 99,838 | 3,025 | 1 | 1 | 33 m² | 14 | PropertyScout Great deals |
| USD 102,910 | 3,027 | 1 | 1 | 34 m² | 9 | FreshProperty - a brand of PropertyScout |
| USD 80,108 | 3,081 | 1 | 1 | 26 m² | 13 | FazWaz Bangkok Sales and Rentals |
| USD 102,010 | 3,091 | 1 | 1 | 33 m² | 27 | 108Siam Sales and Rentals |
| USD 99,838 | 3,120 | 1 | 1 | 32 m² | 10 | PropertyScout Great deals |
| USD 96,766 | 3,121 | 1 | 1 | 31 m² | 14 | PropertyScout Great deals |
| USD 107,518 | 3,162 | 1 | 1 | 34 m² | 9 | 108Siam Sales and Rentals |
| USD 98,302 | 3,171 | 1 | — | 31 m² | 5 | AIM HIGH GROUP CO., LTD. |
| USD 104,710 | 3,272 | 1 | 1 | 32 m² | — | CBRE Thailand |
| USD 165,017 | 3,300 | 2 | 1 | 50 m² | 22 | 108Siam Sales and Rentals |
| USD 89,709 | 3,323 | 1 | 1 | 27 m² | 21 | 108Siam Sales and Rentals |
| USD 108,011 | 3,375 | 1 | 1 | 32 m² | 29 | 108Siam Sales and Rentals |
| USD 108,011 | 3,375 | 1 | 1 | 32 m² | 36 | FazWaz Bangkok Sales and Rentals |
| USD 104,710 | 3,378 | 1 | 1 | 31 m² | 12 | 108Siam Sales and Rentals |
| USD 168,957 | 3,379 | 2 | 1 | 50 m² | 31 | 108Siam Sales and Rentals |
| USD 91,544 | 3,391 | 1 | 1 | 27 m² | 28 | PropertyScout Great deals |
| USD 116,734 | 3,433 | 1 | 1 | 34 m² | 15 | PropertyScout Great deals |
| USD 107,211 | 3,458 | 1 | 1 | 31 m² | 12 | PropertyScout Great deals |
| USD 107,518 | 3,468 | 1 | 1 | 31 m² | 23 | PropertyScout Great deals |
| USD 119,806 | 3,524 | 1 | 1 | 34 m² | — | FreshProperty - a brand of PropertyScout |
| USD 184,317 | 3,614 | 2 | 1 | 51 m² | 30 | FazWaz Bangkok Sales and Rentals |
| USD 184,317 | 3,614 | 2 | 1 | 51 m² | — | FreshProperty - a brand of PropertyScout |
| USD 199,676 | 3,994 | 2 | 1 | 50 m² | 18 | PropertyScout Great deals |
| USD 108,230 | 4,009 | 1 | 1 | 27 m² | 35 | 108Siam Sales and Rentals |
Click row to open the publisher listing on hipflat. Sorted by price/sqm asc.
Facilities
- Concierge
- Garden
- Gym
- Parking
- Security
- Swimming pool
Parking & Lifts
- # of passenger lifts in each building
- 3
- # of service lifts in each building
- 1
- Parking type
- Conventional
- Ratio of parking spaces to # of units
- 40%
- Charging stations on site
- no
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Buildings we don’t track yet link out to hipflat.
Considering The BASE Garden Rama 9? Get an expert opinion.
We pair you with a vetted broker who knows the building, the sub-market, and the foreign-quota status. We don’t take commissions from developers; the broker pays us a flat referral.
Nearby & metrics
Frequently asked questions
What is the gross rental yield at The BASE Garden Rama 9?▾
Gross rental yield at The BASE Garden Rama 9 is 5.70%, computed as (12 × median monthly rent) ÷ median sale price across our active listings. Versus the current Thai MRR of 7.10%, that is a -1.40pp spread. This is a pre-tax, pre-vacancy figure — net yield is typically 1.5–3pp lower.
Is The BASE Garden Rama 9 overpriced compared to the rest of Huai Khwang?▾
The BASE Garden Rama 9 has a RealData Bubble Index of 138 — that is 38% above the median price-per-sqm of the Huai Khwang district, which we classify as bubble suspect.
What is the monsoon flood risk at The BASE Garden Rama 9?▾
The BASE Garden Rama 9 sits in a district with a RealData Flood Risk Level of 3/5 — neighborhood-level common. Risk is district-level, drawn from Bangkok Metropolitan Administration Drainage Department records, JICA reports, and the 2011 great-flood inundation map. Individual buildings may still flood ground-level parking even in lower-risk districts.
How is the air quality at The BASE Garden Rama 9?▾
Latest WAQI air quality reading near The BASE Garden Rama 9 is 53 — Moderate. This is the index value from the closest World Air Quality Index station; PM2.5 levels in Bangkok swing seasonally and can spike during burn season (Feb–April).
Is The BASE Garden Rama 9 easy to resell?▾
The BASE Garden Rama 9 has a RealData Resale Liquidity Score of 73/100 — liquid — resale demand is healthy. 42% of the for-sale supply we tracked here cleared the market. Listings that sold did so in about 0 days. We compute this by tracking every listing from the day it appears to the day it leaves the market, so it reflects how much supply actually clears and how fast — not just the asking price. It is an availability signal, not a guarantee of sale price.
Is the ground sinking at The BASE Garden Rama 9?▾
The BASE Garden Rama 9 sits in a district with a RealData Ground Stability (land-subsidence) level of 3/5 — moderate (transitional zone or historical hotspot). Bangkok rests on soft marine clay and sank as fast as ~120mm/year in the 1980s from groundwater over-extraction; regulation has since cut inner-city rates to near zero, but the eastern belt and coastal south keep sinking. This is a district-level estimate from published InSAR and groundwater-monitoring studies, and it compounds the same areas' monsoon-flood risk over a 10–20 year horizon — not a per-building survey.
Is The BASE Garden Rama 9 a good place to retire?▾
The BASE Garden Rama 9 scores 51/100 on RealData's Retiree Suitability Score — a fair fit for a retirement-visa buyer. There is 1 hospital/clinic within 1km, and the latest air quality reads 53 AQI. The score weights nearby healthcare and clean air most heavily, then car-free transit access and daily errands — the priorities that matter to retirees rather than young investors.
How does RealData verify the numbers on this page?▾
Every figure is computed from live listing data we re-crawl across hipflat, dotproperty, ddproperty, and fazwaz (daily for Bangkok, weekly for the full Thailand sweep). District medians come from the same dataset, the mortgage benchmark is Bank of Thailand BTWS_STAT, and flood / livability layers are pinned to government and OpenStreetMap sources. We accept no payment from developers and no building can buy its way up a ranking — advertising on this page is sold by a third-party network that never sees the data.