New strata industrial estate with roller-door warehouse units, some unsold, financed with a residual stock loan

Guide · Residual stock

Residual stock loans for unsold warehouse, factory and office units

Commercial strata units sell to a different crowd, on a different timetable and with different tax settings from apartments. Here's how that changes a residual stock loan.

Updated 17 October 2026 · Every Business Loan editorial team

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Quick answer

A residual stock loan can refinance unsold warehouse, factory or office strata units after completion, repaying the construction lender while you sell. Lenders look at the value of each unit, recent sales in the estate, how many units remain and how quickly business buyers are absorbing them. Commercial units usually take longer to sell than apartments, so the term and release prices need to reflect a realistic, business-buyer timeline.

Key points

  • Commercial units sell mostly to business owners, investors and super funds, each with their own finance hurdles.
  • The ATO's GST withholding at settlement doesn't apply to commercial property, which changes how GST flows through your sell-down.
  • Lenders weigh unit size, access, power and parking far more than finishes.
  • A leased unit can sell as an investment; a vacant one sells to an occupier.
  • Land tax applies to unsold commercial stock, so the taxing date matters.

Yes, you can refinance unsold warehouse, factory or office units into a residual stock loan once the project is complete. The loan repays the construction lender and gives you time to sell. The difference from an apartment project is the buyer: business owners, investors and super funds buy more slowly and more carefully, so the facility has to be built around a longer sell-down.

Here’s how lenders look at commercial stock, and how to set the deal up so it works for the whole sell-down rather than just the first few months.

Why is commercial stock different from residential stock?

Developers who’ve done both will tell you the selling feels completely different.

An apartment buyer is often buying a home, on an emotional timeline, with a pre-approved loan. A buyer for a 250-square-metre warehouse unit is usually a business owner whose lease is ending in nine months, who needs to check zoning, power supply and truck access, and who may be buying through a separate entity with their accountant’s blessing. The government’s business location guide tells buyers to check zoning, permits and future development with council before committing. That’s good advice for them, and it adds weeks to your sales cycle.

So a residual stock loan on commercial units needs a term that reflects how business buyers really behave, not how the original feasibility hoped they would.

How do lenders value and size unsold commercial units?

Lenders start with the value of each unit, then look hard at how quickly the remaining units are likely to sell. Things that move the needle on commercial stock:

Factor What lenders like What makes them cautious
Unit size Sizes that suit many trades and small businesses Very small units or one very large unit
Access Roller doors, clearance and turning space for trucks Tight driveways, shared loading with conflicts
Services Three-phase power, amenities, mezzanine options Limited power or no amenities
Parking Allocated spaces per unit Little or no parking
Estate sales Several recent settlements at similar prices No sales since completion
Number left A handful of units in a busy estate Many units in a thin regional market

Valuers look at recent sales in the estate and nearby. If you sold the first units at launch prices but haven’t sold any since completion, expect the lender to ask why, and to lend against a value supported by evidence rather than your price list.

Who buys the last commercial units, and how does their finance affect you?

Knowing your likely buyer helps you set a realistic term, because each group arrives with its own approval process.

  • Owner-occupier businesses. Plumbers, electricians, joiners, online retailers and small manufacturers wanting to stop paying rent. Most need a loan of their own, and their lender will usually want a valuation and the business’s financials. Allow time for that.
  • Self-managed super funds. Popular buyers of small commercial units, but borrowing inside super has its own rules and paperwork, so these settlements rarely happen quickly.
  • Private investors. Often keen on units with a tenant already in place, and focused on the rent and the lease term.
  • Neighbours in the estate. An owner who has outgrown one unit may buy the one next door. It’s worth a letterbox drop before you pay for a big campaign.

None of these buyers is slow by nature, but almost all of them depend on someone else’s approval. Build that into the loan term and you avoid an awkward extension request later.

How does GST work when you sell commercial units?

This is where commercial stock departs most clearly from apartments.

For new residential premises, the buyer generally withholds GST at settlement and pays it straight to the ATO. The ATO’s GST at settlement page lists commercial property among the sales those withholding rules don’t apply to. In practice, when you sell a new commercial unit, you’ll normally receive the whole price at settlement and then account for the GST on your own activity statement.

That has two consequences for your loan:

  1. Release prices. The cash that lands at settlement includes GST you’ll later pay to the ATO. Set your release prices so you’re not left without the money to cover that GST when your BAS is due.
  2. Going concern sales. If a unit is leased when you sell it, the sale may qualify as a GST-free going concern if the ATO’s conditions are met, including written agreement and a GST-registered buyer. That changes the numbers on both sides.

Your accountant should map out the GST on each likely sale before the lender sets release prices, not after.

Should you lease unsold units while you sell?

With commercial stock, leasing is often a genuine selling tool rather than a last resort.

For investor buyers, a unit with a signed lease to a reasonable tenant is a ready-made investment. Many self-managed super funds and private investors prefer it.

For owner-occupier buyers, a lease is a problem unless it ends around when they need to move in.

A sensible approach is to decide unit by unit. The smaller, more generic units might be leased and marketed to investors; the larger or better-located units kept vacant for occupiers. Your residual stock lender will usually need to consent to any lease, so take the plan to them early. If you’re weighing up leases on residential stock instead, see our guide to renting out unsold units, because the GST treatment of residential rent is quite different.

If you’ve got finished commercial stock and a construction lender asking for its money, tell us about the estate and we’ll look at what it could support.

What holding costs should you budget for?

Commercial stock carries the same kinds of holding costs as any property, but a few bite harder:

  • Strata levies, which can be significant on estates with shared driveways, gates and fire services.
  • Council rates and water, charged whether the unit is occupied or not.
  • Insurance, including the building policy through the owners corporation.
  • Land tax. Commercial land isn’t covered by the principal residence exemption. In NSW, land tax is based on the land you own at midnight on 31 December and isn’t reduced for part-year ownership, so stock held over New Year counts for the whole year.
  • Marketing and agent fees, which often run longer on commercial campaigns.

Illustrative example: nine units, four left

Illustrative only. A developer completes a strata industrial estate of nine units in a growth corridor. Five units sell to owner-occupiers by completion. Four remain, each worth roughly $650k, and $1.4m is still owing to the construction lender, which wants out within 60 days.

A residual stock loan over the four units repays the construction lender, with interest prepaid for 12 months. The lender sets release prices with the GST on each sale in mind, so the developer keeps enough cash to meet its activity statement obligations as units settle.

The developer leases the smallest unit to a local fit-out business on a two-year lease and markets it to investors. The other three stay vacant for owner-occupiers. Two sell to tradespeople within five months, the leased unit sells to an investor in month seven, and the last unit sells in month ten. Each sale reduces the loan, and the final settlement clears it.

A checklist before you apply

  • Unit schedule: sizes, sale prices achieved and asking prices for the rest
  • Evidence of recent sales in the estate and nearby
  • Construction loan payout figure and the lender’s deadline
  • Strata plan registration, occupation certificate and defects status
  • Any leases in place or proposed
  • Your agent’s marketing plan and expected timeframe
  • Your accountant’s notes on GST for each likely sale

The full list lenders work from is in our residual stock loan documents guide. If you’re also holding a finished building for your own business, commercial property loans cover owner-occupied premises.

Built the estate, still selling the units? Start here

You took the risk, delivered the project and sold most of it. The last few units shouldn’t have to go cheap just because the construction lender’s timetable doesn’t suit business buyers. If you’d like to see whether your remaining stock supports a property-secured facility, between $20k and $5m, we can help.

It takes around 60 seconds to enquire, and there’s no credit check when you first enquire. We won’t send your details to a pile of lenders, so you won’t be chased by a string of strangers. A real person looks at the estate, the units left and your timeline, then calls you. Please be accurate about values, what’s owing and any leases, because those numbers decide which lender is the right match first time.

Find out what your remaining units can support →

Frequently asked questions

Can I get a residual stock loan on commercial strata units?

Yes. Residual stock lenders finance completed industrial, office and mixed commercial units as well as residential stock. The assessment centres on what the units are worth, how many remain, and the evidence that business buyers are purchasing in that estate or area.

Why do commercial units take longer to sell than apartments?

The buyer pool is smaller and more deliberate. Many buyers are business owners who need their own finance approved, and some are buying through a super fund or trust, which adds steps. Decisions often hinge on lease expiry dates at their current premises.

Do buyers withhold GST at settlement on commercial units?

No. The ATO lists commercial property among the sales the GST at settlement withholding rules don't apply to. The developer generally receives the full price and accounts for any GST through its own activity statement, which needs to be planned into cash flow and release prices.

Should I lease unsold commercial units before selling them?

It can help if your likely buyers are investors, because a signed lease shows the income. It can hinder a sale to an owner-occupier who wants to move in. Talk to your accountant about GST and to your lender about consent before signing any lease.

How much can I borrow against unsold commercial units?

It depends on the units' value, their location and type, how many there are and how fast similar units are selling. Lenders lend a share of value, usually more conservatively than on residential stock. Within property-secured lending, the range is $20k to $5m.

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