Determined This application has been determined. Contact Mosman Municipal Council if you want to understand or challenge the decision. Some decisions can be appealed to the NSW Land and Environment Court, and who can appeal depends on the type of development.

Lodged 8 June 2026 On exhibition 26 June 2026 Under assessment Determined 15 July 2026

Status DETERMINED

Overview

Address

4 Muston Street Mosman 2088

Portal application no.

PAN-645157

Council reference

8.2026.83.1

Application type

Development Application

Development types

Residential flat building; Alterations or additions to an existing building or structure

Estimated cost

$275,500

New dwellings

9

Storeys

4

Determination authority

Local Planning Panel - local development

Key dates

Lodged

8 June 2026

Exhibition starts

26 June 2026

Exhibition ends

10 July 2026

Determined

15 July 2026

Source: NSW Planning Portal (opens in a new tab). The tracker searches by address, not by application number. Quote its portal number PAN-645157 or council reference 8.2026.83.1 when you contact Mosman Municipal Council.