What is a Detail Survey and Why Do Architects Need It?

A detail survey (also called a topographic survey or feature survey) maps all physical features on a property including ground levels, contours, buildings, trees, fences, driveways, and underground services. It creates a scaled plan used by architects, engineers, and councils for design and planning purposes.

How Much Does a Detail Survey Cost in Sydney?

A detail survey in Sydney typically costs $1,500 to $4,000 for a standard residential property. Costs increase for larger blocks, heavily vegetated sites, or properties with many features to capture. A basic detail survey for a 600sqm block starts around $1,500.

When Do You Need a Detail Survey?

You need a detail survey when: designing a new building or extension, lodging a DA with council, planning earthworks or landscaping, assessing drainage issues, or preparing for subdivision. Most Sydney councils require a detail survey for DA submissions involving new buildings.

Detail Survey vs Boundary Survey

A boundary survey defines your legal property boundaries. A detail survey maps features within those boundaries (contours, buildings, trees, etc.) but may not include a full boundary re-establishment. Many projects require both - boundaries for legal purposes and detail for design.

How Long Does a Detail Survey Take?

A detail survey typically takes 1-2 days on site, with the completed plan delivered within 5-10 business days. Complex sites with many features or dense vegetation may take longer. Rush services are available for urgent projects.