For most of the past decade, investing around Lake Macquarie ran into the same arithmetic. Prices climbed faster than rents, so the gross yield — annual rent divided by what the property is worth — kept getting smaller. You bought for capital growth and accepted that the rent would not cover much.
That arithmetic has started running the other way, and it has had very little attention.
The Mechanism
Gross yield has two moving parts. If rent holds steady and the value falls, the yield rises. Not because the property got better, but because the denominator got smaller.
Home values across Newcastle and Lake Macquarie have now fallen for four consecutive months. Using Cotality’s published median house values, here is the same rent against two different medians:
| Cotality release | Median house value | Gross yield at $720/week |
|---|---|---|
| June 2026 | $1,084,207 | 3.45% |
| August 2026 | $1,059,758 | 3.53% |
That is a 2.3 per cent relative improvement in yield in two months, from doing nothing at all. If values keep easing and rents hold, it keeps going.
Where the Yields Sit Now
Yields vary enormously across the lake, and not in the direction people assume. The expensive suburbs are generally the weakest on yield, because their values have run far ahead of what tenants will pay.
| Suburb | Median house value | Median rent | Gross yield |
|---|---|---|---|
| Islington | $1,004,536 | $700/week | 3.62% |
| Hamilton | $1,177,606 | $750/week | 3.31% |
| Warners Bay | $1,180,000 | $720/week | 3.17% |
| Redhead | $2,145,777 | $870/week | 2.11% |
Median values and median rents are Cotality figures. Gross yield is rent × 52 ÷ value, before any costs.
Redhead is the clearest illustration. It was the only house market in the entire region to grow over winter, up 0.8 per cent, and it carries the highest median value in Newcastle and Lake Macquarie. It also has the weakest yield on this list by a wide margin. Strong capital performance and strong rental return are usually different properties.
Islington, at the other end, fell 5.8 per cent over the quarter and now returns the best gross yield of the four.
Gross Yield Is Not What You Earn
This is where a lot of investor maths goes wrong, so it is worth being blunt.
Gross yield ignores everything it costs to hold a property: council rates, water, strata where it applies, landlord insurance, property management, maintenance, and any period the property sits empty. Those costs commonly consume a quarter to a third of gross rent.
Gross yield also ignores your mortgage, which is usually the largest number in the equation by some distance. A 3.5 per cent gross yield against an investment loan costing north of 6 per cent is a property funded substantially out of your own pocket.
The improving yield is real and it matters. It does not make a property cash-flow positive on its own.
The Catch
Here is the part that decides whether any of this is available to you.
Markets are pricing a strong chance of a cash rate rise on 29 September, and the major banks now broadly expect one. Lenders must assess you at your rate plus a 3 percentage point buffer, so when rates rise, your assessed capacity falls with them.
Two rises of 0.25 points take roughly 4.3 per cent off your maximum loan — around $27,000 off a $619,000 approval.
Investors feel this more than owner-occupiers. Existing mortgage commitments are assessed at buffered rates too, so an investor with a home loan and one rental already carries a serviceability position that tightens twice over.
So the window has a shape: better entry prices and improving yields, against shrinking capacity. Whether the first two are worth anything depends entirely on the third, and that is worth knowing before you start inspecting. The borrowing power calculator is the place to begin.
For an investor with existing borrowings the calculator only gets you close. If you want the real figure, call David on 0417 676 191.
What Else Has Changed in Your Favour
Conditions have shifted for buyers generally, and investors benefit from it:
- Homes are taking 37 days to sell, up from 21 in April
- Sales volumes have more than halved — 361 in August against 880 at the October 2025 peak
- Listings have climbed, so there is genuine choice rather than one property and eleven competing buyers
Cotality’s head of research Gerard Burg put it plainly:
“Those buyers who are remaining in the market now have a lot more choice and a lot more chance to negotiate.”
He also does not expect a fast turnaround, and ties that directly to rates — which is the honest counterweight to any argument that now is obviously the moment to buy.
If you are weighing a purchase against holding off, talk it through with David before the September meeting rather than after it.
Frequently Asked Questions
How do you calculate gross rental yield?
Gross rental yield is the annual rent divided by the property’s value, before any costs. Multiply the weekly rent by 52 and divide by the value. For example, $720 a week against a median house value of $1,059,758 gives a gross yield of about 3.53 per cent. It is a quick comparison tool, not a measure of what you actually earn.
Why do rental yields go up when property prices fall?
Yield has two moving parts. If the rent holds steady and the value falls, the yield rises, not because the property improved but because the number you divide by got smaller. Using Cotality medians, the same $720 weekly rent went from a 3.45 per cent gross yield in June 2026 to 3.53 per cent in August 2026, purely because values eased.
Which Lake Macquarie and Newcastle suburbs have the best rental yield?
Of the suburbs compared, Islington returned the best gross yield at 3.62 per cent, followed by Hamilton (3.31%), Warners Bay (3.17%) and Redhead (2.11%). The expensive suburbs are generally weakest on yield because values have run ahead of what tenants will pay. Redhead has the highest median value in the region and the lowest yield on the list.
Does a higher rental yield make an investment property cash-flow positive?
Not on its own. Gross yield ignores holding costs such as council rates, water, strata, landlord insurance, management, maintenance and vacancies, which commonly consume a quarter to a third of gross rent. It also ignores the mortgage. A 3.5 per cent gross yield against an investment loan costing north of 6 per cent means the property is funded substantially out of your own pocket. See how investment loans are assessed.
If You Are Weighing It Up
The questions worth answering before anything else are what you can actually borrow at a buffered assessment rate, how the loan should be structured against your existing borrowings, and whether the numbers survive an interest rate a good deal higher than today’s.
That is a conversation, not a calculator. David works with investors across Lake Macquarie and Newcastle, and our investment loans page covers how these applications are assessed differently from an owner-occupier loan.
Worth reading alongside this: what four months of falling values means suburb by suburb.
Want to talk through what this means for your situation? Call David on 0417 676 191 or get in touch via our contact form.
This article is general information only and does not take into account your objectives, financial situation or needs. Figures are illustrative and current as at the date of publication. Interest rates, lender policies and government scheme rules change — please seek advice specific to your circumstances before acting.
Sources
- Median house values: Cotality Home Value Index, June and August 2026 releases, as reported by the Newcastle Herald. Suburb-level values are from Cotality data for the three months to the end of August 2026, reported 4 September 2026; the Warners Bay median was reported 4 August 2026.
- Median rents are Cotality figures. Gross yield is calculated as weekly rent × 52, divided by median value, before costs.
- Days on market, sales volumes and the quotation from Gerard Burg: Newcastle Herald reporting of Cotality data, 31 August and 4 September 2026.
- Borrowing capacity is calculated using a 3 percentage point serviceability buffer, per APRA’s Prudential Practice Guide APG 223.
- Cotality’s Home Value Index measures modelled dwelling values rather than recorded sale prices.
Ready to move forward?
Have questions about anything in this article? David from Rebus Finance can help with a free, no-obligation chat.