Maíson Siam
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Your Bangkok Condo Between Tenants: Who Is Watching?

Most Bangkok property agents are paid to find tenants. They have no contractual obligation to do anything after that. For foreign owners abroad, this gap is where condition silently disappears.

Alexandre Beaumont
By Alexandre Beaumont
Co-founder, Maison Siam

If you own a Bangkok condo from abroad and rent it out long-term through a local agent, here's what your agreement with the agent typically covers:

The agent will source a tenant, conduct viewings, negotiate terms, prepare the lease for signature, and collect their commission on successful placement.

That's it. After signing, the contractual relationship between you and the agent is essentially over. They've been paid their one month's commission. Their incentive to think about your property again is zero.

For the next 12 or 24 months, your property sits in a kind of operational vacuum. The tenant lives there. You're abroad. Nobody is professionally responsible for what happens in between. Most owners discover this gap the hard way: at move-out.

This is the gap we built Asset Care to fill.

The reality of long-term leases in Bangkok

The agent-finds-tenant model works fine on paper. In practice, several things happen during a 12- or 24-month tenancy that no-one is watching:

  • Small problems become large problems. A slow drip under the kitchen sink, ignored for six months, becomes a swollen cabinet, a mouldy wall, and a 30,000 baht repair. An AC running 24/7 in a humid room without service grows mould in the filter, then fails entirely two months before move-out. None of this is the tenant's fault, they don't have anyone to tell. They live with it and you discover it when they leave.
  • The tenant's grievances grow silently. A broken lock takes three weeks to fix because they don't know who to call and the agent stopped answering. They form an opinion of you, and your building, that affects their willingness to renew.
  • Utility bills go unpaid until they're cut off. Most owners auto-pay; many don't, and the tenant has no clear path to escalate when the internet stops working because last month's bill missed payment.
  • Compliance lapses go undetected. TM30 wasn't filed when the tenant first arrived. The condo's juristic person sends a letter to the unit (in Thai). The tenant doesn't translate it. By the time you find out, the building has imposed a fine.
  • The condition assessment at move-out is one-sided. With no documented baseline and no mid-term inspections, deposit disputes become "your word against theirs". The tenant has moved out of the country. You eat the loss.

Every one of these is recoverable if someone with skin in the game is watching. None of them are recoverable if nobody is.

Why agents don't fill this gap

Property agents in Bangkok aren't bad actors, they're operating on the economic model their pay structure dictates. They earn one month's rent upfront. There's no recurring fee. There's no contractual obligation. Even the well-intentioned agents physically can't do bi-annual inspections on every property they've ever leased; their pipeline is the next deal, not the last one.

The cost of professional property representation during the tenancy isn't built into the long-term lease pricing model in Bangkok. It exists separately, as a service the owner has to consciously procure.

Which is exactly what most foreign owners don't realise they need until something goes wrong.

What Asset Care actually does

Asset Care is part of our long-term offer for owners on long-term leases. It exists to fill the operational gap that agents don't.

The core obligations:

Bi-annual property inspections. Twice a year, we visit your unit. Full condition assessment against the pre-tenancy baseline. AC servicing, pest control coordination, appliance health check. Written report with photos delivered to you. All four reports archived for insurance, dispute, and resale reference.

Tenant point of contact. Your tenant has one phone number for property issues. When the AC fails, they call us. We usually get a technician there the same day, document the visit, and put the cost transparently on your account.

Utility and petty cash management. We monitor electricity, water and internet bills and pay them on your behalf from a pre-funded petty cash account (10,000 THB float, top up requested when balance hits 3,000). Every expense logged with receipts and reported bi-annually.

Cost approval protocol. Anything under THB 3,000 we handle immediately and report. Anything THB 3,000–15,000 needs your approval before we proceed. Anything above THB 15,000 gets a written scope and quote before any work starts.

Move-out inspection and report. Full condition assessment at tenant departure, photographed comparison against the pre-tenancy baseline. Damage report supports deposit retention and any insurance or legal claims.

Lease coordination. We market the unit, vet applicants and draft the lease, then handle the juristic submission for tenant registration and the inventory baseline. If another agent brings the tenant, their share comes out of our tenant-finding fee, never out of your pocket. Asset Care then covers everything that happens after move-in.

What it costs

Asset Care is charged as a percentage of the rent we actually collect for you: from 4% of collected rent, VAT included. It is charged only while your unit is tenanted. No rent, no fee, so a month between tenants costs you the rent but nothing in management.

It sits inside our long-term offer, bundled with tenant finding: one month's rent when your tenant signs, then Asset Care for as long as the lease runs. We quote the exact rate against your unit.

Repair, maintenance and replacement work is itemised on your monthly statement, with receipts, whether we use our own team or specialist contractors, and we are VAT-registered. The Asset Care fee covers our inspection, coordination, reporting, tenant support and utility-management time, not the work itself.

Who this is for

You should think seriously about Asset Care if:

  • You own one or more Bangkok properties and don't live in Thailand full-time
  • Your property is leased long-term through an agent (or you're planning to do that)
  • You don't have a person on the ground you can call when something goes wrong
  • You'd like a documented record of your property's condition through the tenancy, for insurance, future disputes, or when you eventually sell
  • You believe prevention is cheaper than repair. and most owners discover this is true the first time they're surprised at move-out

The honest test

Here's the simple question: if your tenant calls right now to report that the AC has stopped working in your Bangkok condo, what happens?

If the answer is "I don't know", you have a gap, and a manageable one. Get in touch and we'll show you how Asset Care plugs it.

If the answer is "I have someone good who handles it", keep doing what you're doing. It's working.

The space between those two answers is exactly the population we built this service for.

If you are equipping a unit rather than maintaining one already let, the companion piece is our Airbnb amenities list: 54 things a 30-night guest uses.

Alexandre Beaumont
About the author
Alexandre Beaumont
Co-founder, Maison Siam

Co-founder of Maison Siam and a Bangkok property investor who runs his own rentals. Ex-Head of Operations at Société Générale, then the #1 Bangkok real-estate consultant by revenue and deals at FazWaz in 2025. He writes about the economics and operations of running a Bangkok rental as an asset.

More from Alexandre Beaumont →

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