Umina Beach Dual Occupancy Project
This dual occupancy development was delivered for a local family in Umina Beach on the Central Coast of NSW and completed in two carefully planned stages.
Stage 1 – 2019
Construction of the 2-bedroom single-storey granny flat using our Ettalong Beach design.
Stage 2 – 2021
Demolition of the existing dwelling and construction of our popular Stockton 3-bedroom home design with a single-car garage.
Staging the project allowed the owners to maximise flexibility, manage cash flow and create long term value from their block.
Project Details
- Location: Umina Beach, NSW
- Council LGA: Central Coast Council
- Project Type: Detached Granny Flat and New Home
- Granny Flat Design: Ettalong Beach 2 Bedroom Granny Flat
- New Home Design: The Stockton 3 Bedroom New Home
- Completion:Completed in two stages, with the granny flat delivered in 2019, followed by the new 3-bedroom home in 2021.
- Construction cost:The original build investment was $146,080 for the granny flat and $253,745 for the 3-bedroom home with a single garage, including GST and excluding landscaping.
Note, current indicative build pricing is approximately $285,000 for the 2-bedroom granny flat and $550,000 for the 3-bedroom home with single garage, including GST and excluding landscaping.
House Details
The Stockton – 3 Bedroom Coastal Home
The Stockton is one of our standard small open plan home designs, ideal for compact or narrow sites while still delivering generous living spaces.
Key Features:
- Raked and square set ceilings in the living, dining and kitchen areas
- 1500mm wide hallway and entry with square set finish
- Large kitchen with stone benchtops and a return breakfast bar
- Quality 90cm kitchen appliances
- Subway tiles in a herringbone pattern for the kitchen splashback
- 600 x 600mm floor tiles in the hallway, living, dining and kitchen areas
- Modern downlights throughout, with ceiling fans in the bedrooms
- 6.0KW split system air conditioning
Bathrooms And Laundry:
- Frameless shower panel with strip drain in the ensuite
- Semi-frameless shower screen in the main bathroom
- Free-standing bath and 1800mm vanity
- Quality tapware and bathroom fixtures supplied by Reece Plumbing
- Laundry with stone benchtops and ample storage
Bedrooms And Storage:
- Mirrored wardrobe doors fully fitted out with internal joinery
- Master bedroom featuring a James Hardie Hardie Groove Lining feature wall and walk in robe
Exterior Highlights:
- Mixture of James Hardie Chamfer and Axon cladding
- 31 x 31 architraves creating crisp, clean edges
- Split skillion gable roofline, achieving a striking coastal façade
- Covered rear alfresco area
- Single-car garage
The finished result is a modern coastal home that feels open, light-filled and perfectly suited to the relaxed Umina Beach lifestyle.
Granny Flat Details
The Ettalong Beach – 2 Bedroom Granny Flat
Completed in 2019, the 2-bedroom single-storey granny flat was designed to complement the primary residence while maintaining privacy and functionality.
As part of a dual occupancy arrangement, the granny flat offers flexibility for:
- Extended family accommodation
- Downsizing on the same block
- Additional rental income
- Future lifestyle adaptability
Why Dual Occupancy Makes Sense
Dual occupancy developments and well-designed small homes continue to grow in popularity across the Central Coast.
While going smaller can feel like a big change, the benefits are substantial:
- Better lifestyle with less maintenance
- Reduced ongoing upkeep
- Lower financial pressure
- Potential rental income
- Greater flexibility for growing or changing families
- More time for leisure and family life
This Umina Beach project is a strong example of how staged development, thoughtful design and quality finishes can deliver both lifestyle and long-term value.
If you are considering building a granny flat, new home or dual occupancy development on the Central Coast, contact our team, who will guide you through the entire process from concept to completion.
P J Cook Building – Building Your Future.














