Why 180 doors sometimes beats 260, and always will

Australian rolls hit a service-quality ceiling somewhere between 140 and 180 doors per PM. Past that, you're growing revenue and destroying value at the same time.

The situation: "You believe more doors always equals more money."

Every principal has seen the pitch: 'grow to 250 doors per PM and watch the margin explode.' The data from rolls that have actually tried it tells a different story. One where growth past the ceiling destroys the very asset it was supposed to build.

The ceiling nobody wants to admit exists

Above roughly 160 doors per PM (adjusted for portfolio complexity: think apartment vs. house mix, average tenancy length, arrears rate), service quality drops in a way tenants and landlords can measure but you often can't see from the P&L for 6–9 months.

The lag is what makes this dangerous. The revenue-per-PM number looks amazing at 220 doors. Then attrition climbs, reviews from Google start slipping, referral pipeline dries up, and 18 months later you're rebuilding from 180.

The two agencies I keep telling the same story about

Agency A grew from 180 to 260 doors per PM over 18 months. Revenue up 41%. Then attrition hit 11% over the next 12 months. By month 36 they were back at 195 doors, but with a broken team and a damaged reputation.

Agency B held at 155 doors per PM and invested in a BDM instead. Slower revenue growth (~14% year one) but attrition stayed under 3%. By month 36 they were at 210 doors with the same PM count, and a saleable roll worth ~$400k more.

The right question isn't 'how many doors?'

It's 'how many tasks per PM per week, and how many of those are proactive vs. reactive?' A PM running 140 complex doors with proactive review cadence is worth two PMs running 220 reactive doors. Measure tasks, not doors.

Key takeaways

• The service-quality ceiling sits around 140–180 doors per PM for most Australian rolls.

• Growth past the ceiling shows up as revenue for 6–9 months, then as attrition.

• Measure tasks per PM per week, not doors per PM.

• A stable 180-door portfolio is often worth more than a chaotic 260-door one.

Where does your rent roll sit on this? Rent Roll Pulse benchmarks the 15 health metrics that drive valuation against Australian peers and shows you which ones to move first. Start your 14-day trial or join the Rent Roll Pulse community to talk it through with other principals.