A turnkey coastal investment, minutes from the train line and the Mandurah foreshore.

Why Mandurah

Mandurah has grown from a fishing village into one of WA's most in-demand coastal cities — and its property market is moving with it.

Mandurah's median house price reached $630,000 in the 12 months to March 2026, up 14.5% year-on-year, with houses spending an average of just 18 days on market (Ray White Mandurah, sourced from REIWA data). Separately, CoreLogic-sourced data puts Mandurah's typical house rental yield at just over 5%, ahead of many established Perth suburbs. The city offers a genuine “sea change” lifestyle — a working foreshore, boardwalk and marina precinct — while remaining rail-connected to the Perth CBD, a combination that continues to draw both owner-occupiers and investors south of the river.

Connected to what matters

111 Cooper St sits within an established Mandurah pocket, close to transport, shopping, schools and the waterfront.

111 Cooper St, Mandurah — Google Maps

Lot & build specifications

The 111 Cooper St development comprises six strata lots (Lot 1 shown here, land size 136m²; Lots 2–6 range up to 208m²), each a fixed-price HIA turnkey contract built by WA Building Solutions Pty Ltd. Every home is a three-bedroom, two-bathroom, single-garage design, delivered with a 10-year structural guarantee and a 6-month maintenance period. Working drawings are dated 10 June 2026 (Rev 3) and are subject to final contract documentation.

Floor plan — Lot 1

Lot 1 ground floor, upper floor and front elevation. Working drawings, Rev 3, 10 June 2026. Subject to change.

The case for 111 Cooper St

This package brings together a fixed-price build, a coastal growth suburb and a straightforward rental proposition.

• Fixed-price HIA turnkey contract with a 10-year structural guarantee and 6 months' maintenance, reducing build-stage risk for an investor.
• An estimated $650pw rent against the $720,000 package price works out to roughly a 4.7% estimated gross yield.
• Mandurah's median house price rose 14.5% in the 12 months to March 2026 (Ray White Mandurah/REIWA), pointing to strong recent buyer demand across the suburb.
• A rail-connected, foreshore lifestyle location that continues to draw both owner-occupiers and tenants south of the Perth CBD.

Airbnb as a second income strategy

Mandurah's waterways, marinas and events calendar support a genuine short-stay market — over 300 active listings, per AirROI's 2026 Mandurah data — so it's worth weighing against a standard tenancy before deciding how to hold the property.

NoteShort-stay figure is a Mandurah-wide market average before management fees, cleaning, furnishing and platform costs; the standard tenancy figure is $650pw × 52 weeks. Not a like-for-like net comparison — shown for scale only.

At those market averages, a typical Mandurah short-stay listing grosses only slightly less than a standard tenancy — before short-stay-specific costs such as management (commonly 15–25% of revenue), cleaning, furnishing and higher turnover maintenance are taken into account. Top-quartile, well-managed listings do materially better than the market average, so the case improves for an owner willing to actively manage or professionally manage the property. December is the strongest booking month locally and August the softest, so short-stay income is materially more seasonal than a standard lease.

• Western Australia now requires all short-term rental accommodation (STRA) hosts to register with the state before listing on platforms such as Airbnb or Stayz.
• The City of Mandurah may require a separate development approval for a whole-home short-stay listing depending on zoning and how frequently it's let — this should be checked against the property's specific zoning before committing to an STR strategy.
• This is a strata title property: the strata company's by-laws (once established under the proposed budget) may permit, restrict or require consent for short-stay use, so this should be confirmed before purchase if short-stay is the intended strategy.

Guide only short-stay figures are market averages for Mandurah (AirROI, 2026), not a projection for this specific property. Short-stay use is subject to state registration, potential council approval and strata consent, none of which is guaranteed.

Investment case summary