
Granny Flats Shellharbour
Turn spare yard space into a comfortable, well built secondary dwelling. Ovas Build plans and delivers granny flats across Shellharbour with careful design, neat sites, and straightforward pricing. From the first measure to handover, you deal with a local team that communicates clearly and respects your home.
What we prioritise
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Morning light and natural ventilation
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Insulation and glazing suited to coastal weather
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Built in robes, smart pantries, and space saving joinery
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Step free entries and wider doorways available on request
Designed around Shellharbour living
Blocks across Shellharbour vary, from coastal pockets near Lake Illawarra to newer estates in Calderwood and Tullimbar. We study the sun, breezes, privacy lines, and access before setting the plan. Interiors are then arranged for storage, movement, and easy daily use, so the flat feels open and practical without wasting space.
Approvals handled in plain English
Many secondary dwellings qualify for a Complying Development Certificate when the site and design meet NSW code. If a Development Application is required, we prepare drawings, coordinate engineering, and liaise with the council so paperwork does not slow the build.
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We look after:
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Site measure, services, and setback checks
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Drawings, engineering, and energy reports
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CDC or DA pathway and certification
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Inspections and final documentation
A tidy, well sequenced build
Good organisation keeps disruption low. We schedule trades in the right order, protect surrounding areas, and keep access clean. You receive regular updates, so you always know what is happening next and when.
Typical inclusions
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Insulated walls and ceilings for comfort
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Coastal grade roofing and cladding
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Custom kitchen with quality hardware
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Built in robes, lighting, and flooring
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Internal laundry and external access
Who benefits from a granny flat
Families creating space for parents or teens, homeowners wanting a guest suite or a proper home office, and investors seeking rental income while lifting overall property value in Shellharbour.​
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A straightforward process:​​
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Site visit and options
We assess your block, setbacks, and access, then outline suitable designs and budgets.
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Design and approvals
Drawings, engineering, and the approval pathway are coordinated for you.
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Fixed proposal
Clear scope, inclusions, and a target schedule you can plan around.
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Construction
Neat site, coordinated trades, and regular progress updates.
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Handover
Walkthrough, documentation, and prompt attention to final touch ups.
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Start planning your
Shellharbour
granny flat
Tell us how you want to use the space and we will map out
options that suit your block and budget. Expect a clear proposal,
a tidy build, and a finish that feels like home on day one.
Areas we serve
Our Services
Our Work

Contact Us
0434037851
OPENING HOURS:
Mon - Fri: 7am - 5pm
​​Saturday: 8am - 12pm









