How to notify neighbours in NSW

Who tells the neighbours, how far out and how many days before. Updated for the statewide Community Participation Plan that started on 1 September 2026.

Street map with a dashed 20 metre circle around a pinned site and notices going to every home inside it

Quick answer: for a development application, council notifies the neighbours. For complying development (a CDC), you must tell every neighbour within 20 m of the lot boundary in writing at least 7 days before work starts in Sydney and other metropolitan areas, or 2 days in regional areas. Since 1 September 2026 one statewide plan sets the exhibition rules for every NSW council.

What changed on 1 September 2026

NSW used to have more than 100 council Community Participation Plans, each with its own distances and periods. From 1 September 2026 every council and planning authority must use one statewide Community Participation Plan.

  • DAs that need exhibition get at least 14 days. Designated and nominated integrated development gets 28 days.
  • A list of lower impact work is no longer exhibited if it stays within the height and floor space limits. This includes houses and dual occupancies up to two storeys, secondary dwellings, alterations up to two storeys, pools, sheds, pergolas, carports, demolition and small subdivisions.
  • Flat buildings and shop top housing stay at 14 days minimum.
  • 20 December to 10 January does not count towards the period.
  • DAs lodged before 1 September 2026 keep the old council rules.

Councils still decide how they notify (letters, emails or a site sign) through their own engagement strategies.

Source: Community participation plans, NSW Department of Planning, Housing and Infrastructure. Checked 7 October 2026.

Complying development: the notice you have to give

Complying development is where the builder or owner carries the notification, not council.

Before approvalIn metropolitan areas the certifier or council tells neighbours within 20 m that a CDC has been applied for, 14 days before it can be approved
Before work startsThe applicant tells every neighbour within 20 m of the lot boundary, in writing. At least 7 days before work in metropolitan areas, 2 days in rural, regional and residential release areas
HowIn person, in the letterbox or by post. Each dwelling in a dual occupancy or apartment building gets its own notice
Can neighbours object?No. The notice is for information only

A proposal from April 2026 would drop the pre-approval notice and make the 7 day pre-construction notice apply across NSW. At the time of checking it had not been confirmed as in force, so check with your certifier.

Source: What to tell your neighbours, NSW Planning Portal. Checked 7 October 2026.

Getting the 20 m list right

Twenty metres from the boundary catches more homes than people expect: the houses either side, the ones behind, everyone across the road and every unit in a block that falls inside the line. A 50 m circle from the middle of a typical suburban block covers everyone within 20 m of its boundary. On a large or long block, set the circle wider so it reaches 20 m past the furthest corner.

Use our construction notice template for the wording, and keep a copy of the address list and the date you delivered. If a neighbour later says they were never told, that record is what you rely on.

Development applications: when you send a letter anyway

Even when council handles the formal exhibition, many consents include a condition to tell neighbours before work starts, before demolition or before a road or footpath is occupied. Read your conditions of consent. If there is one, it will say who must be told and how many days ahead.

Plenty of builders send a courtesy letter on every job regardless. One notice a week before the slab pour or the crane saves a lot of phone calls.

Council by council

What each council’s own document says. Most of these were written before the statewide plan, so they apply to DAs lodged before 1 September 2026. Each one links to the source so you can check the current version.

City of Sydney

Who sends lettersCouncil, to owners and occupiers around the site
Who gets oneWithin 25 m for 14 day notifications, 50 m for 21 days, 75 m for 28 days. In strata buildings, the owners corporation and each unit owner
Notice period14 days for single dwellings, 21 days for flat buildings of 3 or more storeys

The City says the statewide plan replaces its own plan from 1 September 2026, so these distances apply to DAs lodged before then.

Source: Community Engagement Strategy and Community Participation Plan 2025-2029. Checked 7 October 2026.

Inner West Council

Who sends lettersCouncil, by post
Who gets oneOwners and occupiers within 20 m (at least 10 properties) for houses, alterations, dual occupancies and demolition. 50 m for flat buildings and multi dwelling housing, 75 m for the largest proposals
Notice period14, 21 or 28 days depending on the type

A sign also goes up at the site for the notification period. The radius is measured from every point of the site boundary.

Source: Inner West Council Community Engagement Strategy 2025-29. Checked 7 October 2026.

Randwick City Council

Who sends lettersCouncil, by email or post
Who gets oneOwners and occupants within 40 m of each boundary of the site
Notice period14 days

Internal and minor external alterations outside heritage areas go on the website only. Bigger proposals also get a site notice put up by Council.

Source: Randwick City Council Community Engagement Strategy (April 2025). Checked 7 October 2026.

Northern Beaches Council

Who sends lettersCouncil
Who gets oneAdjoining owners and occupiers, and those directly across the road
Notice period14 days. 21 days for DAs decided by the Sydney North Planning Panel, 28 days for designated development

A sign goes on the main frontage as well as the letters.

Source: Northern Beaches Community Participation Plan. Checked 7 October 2026.

Waverley Council

Who sends lettersCouncil
Who gets oneOwners or occupiers of land immediately next to the site, plus anyone else the assessing officer thinks may be affected
Notice period14 days for houses and dual occupancies, 21 days for new multi dwelling housing, 28 days for designated and integrated development

Source: Waverley Community Participation Plan 2019 (Amendment 2). Checked 7 October 2026.

Ku-ring-gai Council

Who sends lettersCouncil
Who gets oneNew houses and dual occupancies: all adjoining land. Alterations and additions: adjoining land on either side. Larger proposals: 3 properties each side and 7 to the front and rear
Notice period14 days. At least 28 days for new flat buildings

Source: Ku-ring-gai Community Engagement Strategy 2025. Checked 7 October 2026.

Hornsby Shire Council

Who sends lettersCouncil. The applicant must also display the A4 notice Council issues at the site
Who gets oneOwners sharing a boundary or directly across the road. Council can widen the area
Notice period14 days

Source: Hornsby Shire Council Community Engagement Strategy (December 2024). Checked 7 October 2026.

Liverpool City Council

Who sends lettersCouncil
Who gets oneAdjoining properties: a common boundary, directly opposite, or across a pathway or driveway. Wider for some uses, such as 50 m for multi dwelling housing and 100 m in rural zones
Notice period14 days. 28 days for designated development

Dwelling houses and alterations to existing houses were not notified under this plan.

Source: Liverpool Community Participation Plan 2025. Checked 7 October 2026.

Penrith City Council

Who sends lettersCouncil
Who gets oneAdjoining owners and occupiers at least. The assessing officer can widen the area
Notice period14 days, which the officer can cut to 7 or extend

Source: Penrith City Council Community Engagement Strategy 2024. Checked 7 October 2026.

Central Coast Council

Who sends lettersCouncil
Who gets oneOwners of adjoining land, including land across a creek or road
Notice period14 days. 21 days for flat buildings, multi dwelling housing and subdivisions of 10 or more lots

Houses that meet every standard were not notified. Houses that do not were notified for 14 days.

Source: Central Coast DCP 2022, Chapter 1.2 Notification of Development Proposals. Checked 7 October 2026.

The Hills Shire Council

Who sends lettersCouncil
Who gets oneNeighbours (no distance given)
Notice period14 days

From 1 September 2026 Council no longer sends neighbour letters for the excluded types, such as homes up to two storeys, alterations, pools, sheds, carports and demolition, unless the plans go over the height or floor space limits.

Source: Changes to Development Application Notification. Checked 7 October 2026.

Georges River Council

Who sends lettersCouncil
Who gets oneNeighbouring properties (no distance given)
Notice period14 days

Council now follows the statewide plan: no neighbour letters for new houses and dual occupancies up to two storeys, secondary dwellings, alterations, pools, sheds, carports and demolition unless they break the height or floor space limits. Those DAs still show on the DA tracker.

Source: Changes to Development Application Notification Requirements. Checked 7 October 2026.

Cumberland City Council

Who sends lettersCouncil
Who gets oneOwners of adjoining or opposite land. In strata, the owners corporation and, at Council’s choice, owners and occupiers of the adjoining building
Notice period14 days for houses, additions and secondary dwellings. 7 days if plans are renotified

Source: Cumberland Development Control Plan, Part A (April 2023). Checked 7 October 2026.

City of Parramatta

Who sends lettersCouncil
Who gets oneFollows the statewide plan
Notice periodFollows the statewide plan

Parramatta says its own notification table is superseded from 1 September 2026, and that it will not consider submissions on DAs the statewide plan does not require to be notified.

Source: Submissions on Development Applications. Checked 7 October 2026.

Sutherland Shire Council

Who sends lettersCouncil
Who gets oneFollows the statewide plan
Notice periodFollows the statewide plan

Source: Sutherland Shire Council Community Engagement Strategy 2026-30. Checked 7 October 2026.

Canterbury-Bankstown, Campbelltown and Wollongong

Who sends lettersCouncil
Who gets oneFollows the statewide plan
Notice period14 days minimum where exhibition is needed

All three now point to the statewide plan. Canterbury-Bankstown and Campbelltown host a copy of it on their own sites.

Source: Wollongong City Council: Notifications and Submissions. Checked 7 October 2026.

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