When a young investor approached me looking for a Bangkok property with one clear objective, high rental ROI, I suggested a selected project in Bang Chak, along the Sukhumvit BTS line and close to Cloud 11 and True Digital Park.
The opportunity stood out because the unit combined a low entry price with strong rental potential, while foreign quota availability was already extremely limited.
Why BTS Bang Chak?
The project is located around 1.4 km from BTS Bang Chak, with a shuttle bus connecting residents to the station.
The location also benefits from proximity to Cloud 11, True Digital Park and Punnawithi, an area increasingly attracting international professionals, digital companies and remote workers.

For an investor focused on ROI, this created an attractive balance between acquisition price and achievable rent.
The Investment
I suggested this specific apartment because the investor’s priority was to maximize rental return rather than focus on a premium branded development.
The unit was secured for 2,159,000 THB, approximately €56,500, only around four months before the building was completed.
An additional 80,000 THB, or €2,100, was invested in furniture.
Total investment: 2,239,000 THB, total €58,600.

The acquisition price was particularly competitive because the purchase was completed close to handover, when only a few foreign quota units were still available.
The developer was not one of Bangkok’s largest brands, which reduced the brand premium embedded in the price. However, the company already had a positive track record from previous developments, allowing the investor to access the project at a lower cost without relying on an untested developer.

Market Entry and Results
The apartment was rented on a one-year contract at 14,000 THB per month, approximately €366 per month.
The owner rented the unit without paying an agency commission, meaning the full rental income is retained.

This generates:
168,000 THB per year, or approximately €4,400 in annual rental income.
The relatively low acquisition cost combined with the achieved rent produces a strong starting yield, while the location provides additional exposure to rental growth and capital appreciation.
ROI Calculation
- Acquisition price: 2.159M THB (≈ €56,500)
- Furniture: 80,000 THB (≈ €2,100)
- Total investment: 2.239M THB (≈ €58,600)
- Rental income: 14,000 THB/month
- Annual rental income: 168,000 THB
- Rental Yield: 168,000 ÷ 2,239,000 = 7.5% per year
- Net rental ROI: approximately 7.5% per year, with no agency commission
- Assumed property appreciation: 5% per year
- Assumed rental growth: 4% per year
- Estimated 10-year IRR: approximately 12%
This case shows how the investment strategy should follow the investor’s objective.
In this case, the priority was high ROI, so the focus was on a competitively priced unit with strong rent relative to acquisition cost, rather than paying a premium for a more famous developer.
By purchasing only a few months before completion, when foreign quota availability was already extremely limited, the investor secured a €58,600 fully furnished property generating approximately 7.5% net rental ROI, while maintaining exposure to the continued development of the Bang Chak–Punnawithi corridor.