Bearing the Highest Yields: Why On Nut Is Sukhumvit's Top Rental Return Suburb Right Now

On Nut is the number that keeps coming up. Property analysts tracking Bangkok's condominium market in mid-2026 consistently point to the area straddling Sukhumvit Soi 77 and the BTS On Nut station as the single strongest pocket for rental yield in the entire Sukhumvit corridor, with gross returns running between 6.5 and 7.2 percent annually on well-positioned units, compared to 4 to 5 percent in the more glamorous Phrom Phong precinct further north.

The timing matters. Bangkok's residential market has spent the past 18 months digesting a surge of new supply that landed between 2023 and early 2025, pushing vacancy rates up in premium zones. Landlords in Thong Lo, where one-bedroom condominiums regularly list above 8 million baht, felt that pressure most acutely. On Nut, with its lower entry price points, quality one-bedrooms between 3.2 million and 4.8 million baht, attracted a different tenant profile entirely, and that profile has proven remarkably sticky.

Who Is Renting in On Nut, and Why They Stay

The tenant base here is not the rotating cast of short-stay tourists that inflates headline numbers in areas closer to Asok. On Nut draws mid-career expatriates, Thai professionals priced out of Ekkamai, and a growing number of remote-working residents from South and East Asia who want BTS access without the Sukhumvit Soi 11 premium. The BTS On Nut station sits at the junction of Sukhumvit Road and Soi 77, giving commuters a direct 12-minute ride to Asok interchange and onward connections to the MRT. That connectivity, without the associated land cost, is the core of the yield story.

Two developments that have shaped the sub-market recently are The Base Park East Sukhumvit 77, a project that delivered a substantial number of completed units into the rental pool over 2024, and the ongoing commercial activation around Soi 77's inner stretch, where a cluster of co-working spaces, Japanese restaurants, and a branch of Tops Supermarket have raised the neighbourhood's liveability score considerably. The Park Lane community mall on Soi 77 remains a reliable anchor for daily retail footfall. These are not accidental amenities, they are precisely the kind of ground-floor infrastructure that converts browsers into long-term tenants.

Running the Numbers Before You Buy

Investors considering On Nut should work from realistic assumptions. A 30-square-metre one-bedroom unit purchased at 3.8 million baht and rented at 18,000 baht per month produces a gross yield of approximately 5.7 percent before factoring in common-area fees, property management, and the occasional vacancy gap. Push that unit to 20,000 baht per month, achievable with a recent renovation, quality furniture, and a unit above the eighth floor with city views, and the gross yield moves to 6.3 percent. The units commanding the upper end of that range are those within 300 metres walking distance of the BTS station, a threshold that Bangkok tenants treat as non-negotiable.

Foreign buyers operating under Thailand's Condominium Act can hold freehold title to units within the 49 percent foreign ownership quota, and several buildings in the On Nut zone still have quota availability as of July 2026, a position that has tightened considerably in older buildings along upper Sukhumvit. Transfer fees and business tax add roughly 3 to 3.5 percent to transaction costs and should be built into any yield calculation from day one.

The practical advice for anyone looking to enter is straightforward. Visit the building on a Tuesday or Wednesday morning to assess actual occupancy rather than relying on developer vacancy claims. Check the juristic person's financial statements, a building with a healthy sinking fund and low arrears rate will protect asset value over a five-year hold period far better than one with deferred maintenance. And compare the asking price against recent registered transactions at the Land Department office on Soi Sukhumvit 97, which publishes transferred values that are often more conservative than agent listing prices but far more useful as a baseline.

On Nut will not stay undiscovered indefinitely. The southward extension of the BTS Gold Line and continued densification along Soi 77 are drawing developer attention that will eventually compress yields as land costs rise. The window for entry at current price-to-rent ratios is open, but it has a finite width.

This article is general information only and is not personal financial or investment advice. Consider your own circumstances and seek licensed professional advice before making financial decisions.