Images of homes that may be destroyed for a mega lotMega Lot Exclusive: Three Mosman streets earmarked for 11-storey block of 155 apartments.
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Exclusive: Mandolong Rd apartment block to be sold in one line as luxury development site.

Published On: October 14, 2026
Mandolong Rd apartment block

This Mandolong Rd apartment block of 12 flats is being sold in one line as a prime LMR development opportunity.

By ANNA USHER

Twelve apartment owners in a prime Mosman block have listed their properties for sale in one line, with agents pitching the site to developers under the new LMR housing reforms.

The modernist, 1970s blonde brick building at 6 Mandolong Rd is being marketed by Colliers as a “premium residential development opportunity” in one of Sydney’s “most tightly held harbourside” locations.

street view of 6 Mandolong Rd

6 Mandolong Rd is a 1970s blonde brick block of 12 residences, now on the market with Colliers.

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“A premium residential development opportunity comprising 1,478.27 sqm* of R3 Medium Density Residential land in one of Mosman’s most sought-after locations,” an advertisement released on Monday reads.

“Benefitting from dual street frontage to Mandolong Road and Clifford Street, the site enjoys elevated harbour views and excellent connectivity, just moments from Mosman Village and Spit Junction.

“With a permissible GFA of 3,252 to 4,227 sqm^, the property offers the opportunity to deliver a boutique apartment development in one of Sydney’s most tightly held and affluent residential markets.”

Arial of 6 Mandolong Rd

6 Mandolong Rd. Source: Colliers Sydney.

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The online listing carries no price guide; however, one prominent Lower North Shore developer, speaking to Mosman Collective on condition of anonymity, said 6 Mandolong Rd could fetch around $40 million.

“It is an attractive site, and unlike other LMR sites in Mosman, this one retains the same height and FSR controls as the proposed Mosman Masterplan, which provides a level of certainty as to what can be built.”

Located within the 400-metre catchment identified under the NSW Government’s Low and Mid-Rise Housing reforms, the property is “well placed to capitalise on existing planning settings”, the Colliers advertisement said.

The view from one of the Mandolong Rd apartments.

The site offers views over Balmoral and through the heads.

The property has dual street frontage to Clifford St, where 43 apartments on a 3000sqm block are also on the market, a story this masthead first published in September.

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Images of homes that may be destroyed for a mega lotMega Lot Exclusive: Three Mosman streets earmarked for 11-storey block of 155 apartments.
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