In several regencies of South Kalimantan, coal mining helps shape the towns. Workers and contractors arrive and need housing, offices, workshops and places to eat. Owners of houses and shophouses nearby feel the rental demand pick up.

That demand follows its own pattern, though. It rises while projects run, and it can drop quickly when a contract ends or coal prices weaken.

This guide is for anyone thinking of buying a house, shophouse or land in a mining town to rent out. It covers where the demand comes from, what can go wrong, and how to run the numbers honestly.

Which towns we mean

Coal mining weighs heavily in Tabalong, Balangan, Tapin, Tanah Bumbu and Kotabaru. Towns that feel it include Tanjung in Tabalong, Paringin in Balangan, and Batulicin and its surroundings in Tanah Bumbu. Parts of Tapin and Kotabaru have mining activity as well.

Each town is different, and not every part of a town depends on mining. Government offices, markets and schools still need housing, whatever the mines are doing.

Where rental demand comes from

In a mining town, tenants usually come from a few groups:

  • Contracting companies, which rent houses as mess (shared staff housing) or as homes for senior staff.
  • Workers and their families, who rent a house or a room themselves.
  • Suppliers and support businesses, which rent shophouses, warehouses or workshops.
  • Civil servants, teachers and traders, who live in the town with or without the mines.

That last group is easy to overlook, yet they can be the tenants who stay when mining projects go quiet.

So choose a property that still appeals to them. A family house near schools and the market is easier to re-let than a mess building beside a haul road.

Rents follow coal prices and contracts

Rents in a mining town are closely tied to two things: commodity prices and contractor contracts. When coal prices are good and output rises, contractors take on people and look for housing. When prices fall or a contract ends, they cut staff and give up their rented houses.

Owners who buy in a busy period tend to calculate with the highest rent. The trouble is that such rents may not last. If many people build rental housing at the same time, supply can overshoot once a project ends.

Ask a few owners and residents what similar houses rented for when projects were quiet. That figure is more useful for your numbers than today’s rent.

Don’t try to guess where coal prices are heading. Just check whether the property still makes sense if the rent drops and the house sits empty for a few months.

Risks people notice too late

  • Oversupply. When a project finishes, many houses and rooms can empty at once, and rents fall with them.
  • Land inside a mining permit area. A land right and a mining permit are two different things. Ask the provincial Energy and Mineral Resources office (Dinas ESDM) whether the site is inside a mining permit area or close to a planned new pit. The regency’s spatial plan, which you can view on GISTARU, also shows the zones set aside for mining.
  • Haul road dust and noise. Houses near a haul road or a mine site can get dust and heavy truck noise, sometimes late into the night.
  • Changed drainage. Pits and spoil heaps can change how water flows in the area. Ask residents whether puddling or flooding has become more frequent in recent years.
  • One big tenant. If one contractor rents every unit, the end of a single contract can empty them all at once.
  • Wear and tear. A mess house shared by many people usually wears out faster than a family home.

If you own several units, mix your tenants. Letting one unit to a contractor and the rest to families or small businesses keeps your income from hanging on a single contract.

A worked example with empty months

Worked example (illustrative numbers only, not prices in any town):

  • A house is bought for Rp 1 billion and let to a contractor for Rp 80 million a year.
  • Final income tax (PPh final) at 10 percent of the gross rent: Rp 8 million.
  • Upkeep and PBB (the annual land and building tax), say Rp 7 million.
  • Net income in year one: Rp 65 million, or 6.5 percent of the purchase price.

Now assume the contract ends after a year. The house stands empty for six months, then a family rents it for Rp 50 million a year.

  • Rent received in year two: Rp 25 million.
  • PPh final of Rp 2.5 million, while upkeep and PBB stay at Rp 7 million.
  • Net income in year two: Rp 15.5 million, under 2 percent.

Averaged over the two years, that is about 4 percent a year, well below the 6.5 percent you saw at the start, and it doesn’t yet include repairs after the first tenant leaves.

If you can live with this weaker version, the price may make sense. If not, offer less or look elsewhere.

If you are thinking of building row rentals for workers, the numbers are covered in our guide to kontrakan petak rentals.

Renting to a company: the contract and the tax

Renting to a contracting company has its advantages: payment can come upfront and the paperwork is orderly. Read the contract carefully all the same.

Put these in writing:

  • The term and the early exit terms, including what happens if the company’s mining contract ends.
  • The maximum number of occupants, especially for a house used as a mess.
  • Who pays for repairs, and the condition the house must be in when it is handed back.
  • How rent is paid, for example yearly upfront or monthly.

Ask for the tenant company’s details and the name of the person authorised to sign. Keep a copy of the contract and every proof of payment.

On tax, rent from land and buildings carries a PPh final of 10 percent of the gross rent under Government Regulation No. 34 of 2017. If the tenant company has been appointed as a withholder, it withholds the tax and gives you a bukti potong (withholding slip). If not, you pay it yourself, generally by the 15th of the following month, and report it in your annual tax return (SPT).

DJP (the Directorate General of Taxes) now runs its system on Coretax. The details are in our guide to tax on rental income, and for your own situation, ask your tax office.

Before you buy

  1. Find out who rents around the site, from the big contractors to families and small businesses.
  2. Ask the provincial ESDM office about mining permit areas nearby.
  3. Visit by day and by night to see and hear the haul traffic.
  4. Ask residents about any change in puddling and flooding.
  5. Run the numbers with a lower rent and empty months, then make your offer on that basis.

Houses in Tabalong are on houses for sale in Tabalong, and shophouses to rent on shophouses for rent in Tanah Bumbu.