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The Base WongsawangUnder construction

The Base Wongsawang

เดอะ เบส วงศ์สว่าง

Prachachuen Road, Wongsawang, Bang Sue, Bangkok · Bang Sue

Starting from

฿2.39M

25.25-46.00 sqm

2027

  • ✦ Next to MRT Wongsawang (Purple Line)
  • ✦ 10 minutes to Central Ladprao; 400m to Wongsawang market and Big C Marketplace
  • ✦ 40-storey, 684-unit tower with Simplex and Loft unit options
  • ✦ 35m swimming pool and dedicated pet park
  • ✦ 42% construction complete, expected completion 2027

Unit types

1BR2BR

Facilities

Swimming pool (35m)Semi-outdoor lobbyFitnessPet parkGarden (5th floor)

Documents & downloads

Construction progress

65%

Expected completion 2027

Official land value here

฿55K per sq.wah

≈ ฿14K per m² of land

District median (Bang Sue)฿100K

Pricier land than 72% of tracked locations

Official zone appraisal by the Treasury Department (2023-2026 cycle), median of 216 land parcels within 150 m of the project pin. Land value, not unit price; government appraisals typically sit below open-market prices.

The public record

EIA approved August 29, 2024

Recorded statusPermitted, under construction
Filed byวรพินิต จำกัด

From Thailand's national environmental assessment register (ONEP). An approval is not a promise the project gets built, and a project without a record here may simply have filed under a subsidiary name.

Check the filing at ONEP →

What the city plan allows here

High-density residentialY8-1

Floor area ratio (FAR)6

A plot in this zone may hold 6 times its own area in floor space.

Open space required5%

Bangkok comprehensive plan, the 2013 regulation in force. These are zone rules, not plot rules: setbacks, road width and the project's own EIA conditions apply on top.

Around the address

7 amenities mapped within 800 m

Malls 3Convenience 1Clinics 1Schools 1Cafés & restaurants 1

Nearest flood point the city monitors: 2565 m away.

Amenities from OpenStreetMap. Flood points are road locations the BMA drainage department monitors, not a risk rating for this building.

Tracking history

Tracked since July 13, 2026. Price, construction and status are checked every two days.

  • 2026-10-09Construction: 58% → 65%
  • 2026-09-09Construction: 52% → 58%
  • 2026-08-11Construction: 45% → 52%
  • 2026-07-13Construction: 42% → 45%

AI Investment Insights

64

/100

Investment score

Location7/10
Value6/10
Developer7/10
Transit8/10
Est. gross rental yield: 5–6.5% per yearGrowth outlook: HighSuits: Rental investor · Own-stay buyer

The Base Wongsawang offers solid transit connectivity via MRT Wongsawang and exposure to Bang Sue's high-growth transit-hub story, backed by Sansiri's reliable delivery record. Investors should weigh the 2027 completion timeline and dense unit count against attractive entry pricing and rental-friendly small unit sizes.

Strengths

  • Located next to MRT Wongsawang (Purple Line), with easy access to the emerging Bang Sue Grand Station transit hub
  • Sansiri is a proven, SET-listed developer with a strong delivery track record
  • Small, affordable unit sizes (25-46 sqm) are well-suited to rental demand and first-time buyers
  • Located in a high-growth district benefiting from major government transport infrastructure investment

Watch out for

  • Still under construction with completion not until 2027, carrying moderate delivery-timeline risk
  • High density (684 units, 40 floors) means significant competing rental/resale supply within the same project
  • Small unit sizes limit appeal to larger households and may cap long-term capital appreciation

AI analysis · claude-sonnet-5 · October 12, 2026 · AI-generated analysis based on public data. Not investment advice, verify with the developer before deciding.

🧮 True-cost & yield calculator

For foreign buyers paying cash. Adjust any assumption, estimates only.

✨ Prefilled from this project's AI analysis

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Total acquisition cost

฿2.47M

Purchase price฿2.39M
Transfer fee฿24K
Sinking fund฿15K
Common fee prepay฿18K
Furniture฿0
FX transfer cost฿18K

Net annual rental income

฿85K

Net yield

3.4%

Payment schedule

Reservation฿50K
Contract signing฿239K
During construction (12 months)฿239K
At transfer฿1.86M
Estimated value in 5 years฿3.05M

Email me this breakdown

All figures are estimates from adjustable assumptions, not investment advice. Verify every cost with the developer and independent advisers.

Track Sansiri

Sansiri made 43 price and construction changes in the last 90 days. Get an email when the next one lands.

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