What Is a Good Sinking Fund Balance for Strata in NSW?

You are looking at a strata report for an apartment you want to buy. The sinking fund balance is $340,000. The building has 48 units. Is that good? Bad? How are you supposed to know?

This is one of the most common questions NSW property buyers ask, and one of the hardest to answer without context. A $340,000 sinking fund could be excellent for a 20-year-old building, or dangerously low for a 40-year-old one with deferred maintenance. It depends on the building's age, size, condition, and upcoming capital works.

This guide will give you data-driven benchmarks based on 88,000+ NSW strata plans, so you can assess whether a building's sinking fund is healthy, underfunded, or a red flag before you buy.

What Is a Sinking Fund, Exactly?

A sinking fund (also called a capital works fund) is the owners corporation's long-term savings account for major building expenses that do not happen every year—things like roof replacement, lift upgrades, facade repairs, fire safety compliance, and structural remediation.

It is not the same as the administrative fund, which pays for day-to-day expenses like gardening, cleaning, insurance, and strata management fees. The sinking fund is specifically for capital expenditure.

The Benchmark: $5,000 to $10,000 Per Unit

Based on analysis of 88,000+ NSW strata plans, a healthy sinking fund balance for most buildings is:

This is a rough benchmark, not a hard rule. Some buildings need more, some can get away with less. Here is how to adjust for your specific building:

Adjust for Building Age

Why? Older buildings have more deferred maintenance, aging infrastructure (lifts, plumbing, electrical), and face expensive compliance upgrades (fire safety, accessibility). If a 35-year-old building has the same sinking fund balance as a 10-year-old building, that is a warning sign.

Adjust for Building Size & Complexity

Larger buildings and buildings with amenities (pools, gyms, basement parking, lifts) need higher sinking fund balances because they have more infrastructure to maintain and replace.

• Small walk-up building (6-12 units, no lift): Lower end of the range ($3,000-$6,000/unit) is acceptable
• Mid-sized building (20-60 units, lifts, shared facilities): Middle range ($5,000-$10,000/unit)
• Large complex (100+ units, pool, gym, basement parking): Higher end ($10,000-$20,000/unit or more)

Compare the Balance to the Capital Works Plan

The sinking fund balance means nothing without context. A building could have $500,000 in the sinking fund, but if the capital works plan shows $800,000 in scheduled expenses over the next 3 years, that building is underfunded by $300,000.

Look for the 10-year capital works forecast in the strata report (usually called a "sinking fund plan" or "10-year maintenance plan"). This document lists all the major expenses the building expects to incur and when.

If you see this pattern, you should assume a special levy is coming and factor that into your purchase decision.

Check the Contribution Rate (Is It Growing or Shrinking?)

A healthy sinking fund balance is not enough on its own. You also need to know whether the fund is growing (quarterly levies exceed expenses) or shrinking (expenses are outpacing contributions).

Look at the quarterly levy breakdown in the strata report. You are looking for two numbers:

• Sinking fund contribution per quarter (per unit): e.g., $600/quarter
• Annual sinking fund expenses: Check the financial statements for how much was spent from the sinking fund in the last 12 months

If contributions significantly exceed expenses, the fund is growing (good sign). If expenses are draining the fund faster than levies can replenish it, that is a warning sign—especially if there are no major capital works scheduled.

Sinking Fund Red Flags

Here are the warning signs that a sinking fund is dangerously underfunded:

If you see any of these patterns, ask your conveyancer or a strata specialist to review the report in detail. You may be buying into a building with deferred maintenance and imminent special levies.

What to Do If the Sinking Fund Is Low

If the sinking fund balance is below the benchmarks above, you have a few options:

1. Negotiate the price down. If you are confident a special levy is coming, factor that into your offer. A $10,000 special levy risk justifies a $10,000 price reduction (or more, for the hassle and uncertainty).
2. Walk away. Chronic underfunding is a sign of a dysfunctional owners corporation. If the building has deferred major works and the committee refuses to raise levies, you may be buying into years of special levies and disputes.
3. Ask for a detailed capital works review. Pay a quantity surveyor or building inspector to assess the building's condition and estimate upcoming costs. If the sinking fund shortfall is worse than the report suggests, you will know before you exchange.

Summary: How to Assess a Sinking Fund Balance

A sinking fund balance is one of the most important financial health indicators in a strata report. If the fund is well-managed and aligned with the building's capital works plan, it is a sign the owners corporation is financially responsible. If it is underfunded, you are inheriting a financial risk—and potentially a very expensive one.