Granny Flat Prices Sydney — Building Cost Calculator

How much will your granny flat cost? Compare the floor plans below, choose a design and personalise its inclusions to see your building price. Prices start from $132,980 for the Julianna design.

Select your approval type and optional upgrades to update the total, which includes GST and your selected approval option. Your property’s access, ground conditions and service connections still need assessment before your final quotation.

Want to compare layouts first? Browse our granny flat designs and floor plans. For design and approval costs separately, use the approval pricing calculator. We coordinate your design, approvals and building processes across Sydney.

Want to understand the numbers before choosing? Read our Sydney granny flat cost guide for design price examples, approval options and the site costs to check in your quotation.

Granny Flat Pricing Calculator

Select Your Granny Flat Design

Select Approval Type & Upgrades:

Approval Type

Select Your Approval:

Externals

Frame:

Facade:

Wall Height:

Roof Covering:

Roof covering choices: concrete tiles, Colorbond or terracotta tiles. Confirm colours and product samples with our team before finalising your selection.

Roof Shape:

See Roof Shapes (Opens In New Window)

Attached Patio (Additional to 60 sq m):

Attached Garage (Additional to 60 sq m):

FREE TV Antenna:

Clothes Line:

Internals

Flooring:

Cornices:

Skirting:

Acoustic Wall Insulation:

Doors

Internal Doors:

Swinging Internal Doors:

Glass Sliding Door:

Windows

Windows:

Window Shades:

Skylights:

Bathroom

Toilet:

Shower:

Wall Tiles:

Clothes Dryer:

Ensuite:

Water Closet:

Bedrooms

Built-In Wardrobes:

Kitchen:

Bench Tops:

Laminate is standard. A silica-free stone benchtop can be quoted as an optional upgrade; it is not included in this calculator total.

Splash Back:

Cabinets:

Oven:

RangeHood:

Dishwasher:

Electrical & Services

Electrical Meter (If existing system allows):

Hot Water System:

Water Meter (If existing system allows):

Internal Lights:

Power Points:

TV Connection Points:

Telephone Points:

Air Conditioning:

Fans:

Gas Heater Connection Point (If existing or selected system allows):

Security

Front Door Security Fly Screen:

Complete Door & Window Security Screen Package:

Your Turn-Key Build Price (Includes Selected Approval):

Includes GST

Secure Your Quotation:

Contact Details

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Enter Your Site Address (Optional):

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