How a $1m strata loan really changes levies over 10–15 years

A $1m strata loan will usually add somewhere between $500 and $1,000+ per lot per quarter for 10–15 years in a medium‑sized building, depending on interest rate, term and unit entitlements. The faster you repay, the higher the levies now but the less total interest you burn through.

In this guide we run simple, decision‑grade worked examples so your committee can see the likely range this week – before you vote.

Comparing 10‑year and 15‑year strata loan terms highlights the trade‑off between current levies and total interest paid.

The starting point: basic $1m loan assumptions

To keep the maths clean, let’s assume:

• Loan amount: $1,000,000
• Interest rate: 7.0% p.a. variable (illustrative only, not a quote)
• Repayments: principal and interest (P&I)
• Options: 10‑year vs 15‑year term
• Building size: 20 lots, similar unit entitlements

These numbers are realistic in the current environment where non‑bank strata loan margins sit above standard home loans.

10‑year vs 15‑year repayment – building level

Indicative repayments (P&I) on $1m at 7%:

• 10‑year term: about $11,600 per month
• 15‑year term: about $9,000 per month

Converted to quarterly:

• 10‑year: ~$34,800 per quarter
• 15‑year: ~$27,000 per quarter

Per lot in a 20‑lot scheme (equal unit entitlements):

• 10‑year: $34,800 ÷ 20 ≈ $1,740 per quarter per lot
• 15‑year: $27,000 ÷ 20 ≈ $1,350 per quarter per lot

That’s the headline impact: stretch the term from 10 to 15 years and you drop levies by about $390 per quarter per lot – but you’ll pay interest for five extra years.

Worked example 1: 10‑year loan, medium‑sized scheme

Assumptions:

• 20 lots, equal entitlements
• Loan: $1,000,000, 10‑year P&I, 7%
• Starting quarterly strata levies (without loan): $1,200 per lot

Year 1 levies with loan

• Loan component per lot: ~$1,740 per quarter
• Existing levies: $1,200 per quarter
• New total levy per quarter: $2,940 per lot

Annual change:

• Before loan: $1,200 × 4 = $4,800 p.a.
• After loan: $2,940 × 4 ≈ $11,760 p.a.
• Increase: ~$6,960 per year per lot

For a couple on average incomes, an extra ~$580 per month can be the difference between comfortably owning and being stretched, so this needs to be stress‑tested against personal cashflow.

Interest vs principal over time

In early years of a 10‑year loan at 7%:

• Around 60–65% of each repayment is interest
• 35–40% is principal

By Year 5:

• Interest share drops closer to 45–50%

By Year 10:

• Interest becomes a small slice; most of your last payments are principal.

So if you refinance or restructure mid‑way (for example, using the steps in /insights/when-to-refinance-or-restructure-a-strata-building-loan), you’ll usually have paid a big chunk of interest up front already.

Total interest over 10 years (rough guide)

On these assumptions, total interest over the 10‑year term is roughly $390,000–$410,000 for the building.

Per lot:

• About $19,500–$20,500 interest over 10 years
• Plus the $50,000 principal share

So a typical owner ends up contributing ~$70,000 in loan‑related levies over 10 years, on top of normal admin and sinking fund levies.