Letter · Planning & Environment

Letter of advice on a development consent: conditions, lapsing, modification and review or appeal rights (NSW)

Advice letter to an applicant who has just received a NSW development consent: what it permits, the conditions that need action and when, the 5-year lapsing rule and how to physically commence, modification pathways, and the time limits for review or a Class 1 appeal on conditions.

Kind
Letter. A letter or email you adapt and send.
Where it applies
New South Wales
AI use
Yellow AI can help in set ways. A lawyer checks specific points before use.
Law stated as at
18 October 2026
Status
Maintained. Checked on 18 October 2026 against the 4 authorities it cites, for New South Wales.
Version
1
Source
Written for this library

When to use it

Use when a client receives a development consent (or deferred commencement consent) and needs to know what to do next, or when a buyer or financier needs advice on whether an older consent is still alive. Not for complying development certificates or State significant development, which have their own rules.

How AI may be used

AI may extract the conditions into the action table and calculate the lapsing and appeal dates from the notice of determination; the lawyer checks each condition and date against the consent and decides the advice on modification, review or appeal.

AI may

  • Extract every condition from the notice of determination into the action table, grouped by stage (before construction certificate, before work, during work, before occupation, ongoing)
  • Calculate the lapsing date and the 6-month appeal date from the dates on the notice and the NSW planning portal
  • Flag conditions that require a later satisfaction decision by council, contributions, bonds or a deferred commencement matter

AI must not

  • Must not advise whether work done so far amounts to physical commencement; that depends on the facts and the regulations
  • Must not decide whether a proposed change is substantially the same development or which s 4.55 pathway applies
  • Must not recommend accepting, reviewing or appealing conditions; that is the lawyer’s advice on the client’s objectives

The lawyer checks

  • The date the consent operates from, the lapsing date and any reduced period are read from the consent itself, not assumed
  • Every condition requiring action before a construction certificate, before work starts or before occupation is in the table with its trigger
  • The review and appeal time limits are calculated from the date the determination was notified or registered on the portal
  • Any deferred commencement condition and its own 5-year (or shorter) period is identified

Method: how the Green, Yellow and Red levels are decided. This is guidance for planning, not legal advice.

Authorities

Read the full text

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