Duplex Builder in Sydney, Central Coast, Newcastle & Hunter Valley
Outstanding Designs from Concept to Completion
Are you Building a Duplex in NSW?
This is a smart way to create flexible living arrangements and maximise land value.
You can rely on Amescorp custom duplex builders in Sydney, Newcastle, the Central Coast and Hunter Valley.
Our team creates bespoke duplexes that are beautiful to live in. We handle everything from council approval and design to construction and handover.
Amescorp’s licensed tradespeople, architects and designers bring your vision to life. We ensure superior design, quality work, competitive pricing and open communication for a stress-free journey.
Our Custom Design & Build Process
01
Site assessment
We assess your site’s dimensions, zoning, slope and orientation to determine what’s possible and optimal.
02
Custom design
No cookie-cutter plans. Our designers work with you to create a duplex that fits your lifestyle and neighbourhood. Every detail is considered.
03
Council approvals and documentation
We manage the entire DA (Development Application) or CDC (Complying Development Certificate) process, navigating local council requirements across all our service regions.
04
Construction
We build your design with quality trades, premium materials and strict management. You get clear communication and regular updates.
05
Handover and support
We walk you through your new home, check our quality, and provide ongoing support.
02
Custom design
No cookie-cutter plans. Our designers work with you to create a duplex that fits your lifestyle and neighbourhood. Every detail is considered.
04
Construction
We build your design with quality trades, premium materials and strict management. You get clear communication and regular updates.
We take the Stress out of your Building Journey
At Amescorp, we put clients first. Our professionals guide customers with helpful, reliable advice.
Inclusions
- Contemporary facades with coordinated material and colour palette
- Render, feature brickwork, or vertical cladding accents
- Recessed balconies / screens for privacy and depth
- Compliance with NSW Housing Diversity Code (attached dual occupancy standards)
- Passive solar and climate-aware design (east-west orientation where possible)
- Letterbox numbers integrated into frontage
- Engineer-designed concrete slab on ground
- Brick veneer or full masonry construction (par BASIX & engineer requirements)
- Structural steel baams as required
- 2.7m ground floor ceilings, 2.4-2.6m first floor ceilings (subject to design)
- Souncl—rated party wall and thermal insulation
- Termite protection system
- Sarking to roof
- Colorbond or concrete roof tiles
- 90mm wall frames
- Fire-rated and acoustic party wall system compliant with NCC
- Choice of Single or Double Lock- Up Garage
- Sectional Colorbond garage door with remote control
- Internal access door (where design permits)
- Concrete driveway (plain or exposed aggregate optional upgrade)
- Provision for EV charging point rough-in
- Provision for garage storage shelving
- Aluminium framed windows and sliding doors
- Flyscreens to all operable windows
- Sliding stacker doors to alfresco where applicable
- Solid core internal doors
- Feature entry door with digital smart lock
- Dimmable LED downlights throughout
- Natural light—maximising layouts, north—facing windows where possible
- Designer layout (island bench where space permits)
- 40mm stone benchtops
- Waterfall edge to island (design dependent)
- Full-height splashback tiles
- Soft—close cabinetry A drawers (polyurethane or laminate)
- Feature overhead cupboards
- Stainless steel undermount sink with pull—out mixer top
- Stainless steel appliances: 900mm cooktop, 600mm built-in oven, 600mm rangehood ducted externally, dishwasher
- Walk-in pantry or large built-in pantry
- Floor-to-ceiling tiling in wet areas
- Semi—frameless shower screens
- Freestanding bathtub (main bathroom)
- Wall—hung or semi—recessed vanities with stone tops
- Back-to-wall toilet suites
- LED mirrors (design dependent)
- Quality chrome or matte block topware
- Ensuite to master bedroom
- Master suite with walk-in robe
- Built—in wardrobes in bedrooms 2 & 3
- Premium carpet with underlay in bedrooms
- Linen cupboard storage
- Extra TV and data points in master bedroom
- 600×600 porcelain tiles to ground floor living areas
- Timber-look hybrid flooring to ground floor living zones (optional upgrade)
- Carpet upstairs (bedrooms and hallways)
- Tiled alfresco (where applicable)
- Ducted raverse-cycle air conditioning
- LED lighting throughout
- Instantaneous gas hot water system
- Roof insulation and energy-efficient glazing
- Minimum 6.6kW solar PV system
- BASIX compliance
- Smoke alarms (hard—wired with battery backup)
- Custom cabinetry with stone benchtop
- Stainless steel laundry tub
- Tiled floor and splashback
- External access (design dependent)
- Turf to front and rear yards
- Concrete paths & alfresco tiled area
- External lighting
- Clothesline & garden tap
- Standard boundary fencing to side and rear
- Bulk excavation and site levelling
- Soil compaction and preparation for slob
- Footings and drainage trenches
- Stormwater connection to Council requirements
- Temporary sediment control during construction
- Grading for site drainage
- Provision for driveways, paths, and alfresco slob
- Connection to water, sewer, and electricity services (where applicable)
- Letterbox numbers installed and aligned with Council addressing
- Hard-wired smoke alarms with battery backup
- Security system cabling & power points
- Smart thermostat and data points in key living areas
- NBN/FTTP compliant cabling
- Ample natural light, natural materials (timber tones, stone), and connection to outdoor spaces
- Space for flexible work—from—home or study niches
- Biophilic touches (optional): skylights, glazed panels, planters
- Skylights
- Feature staircase wlth glass balustrade
- Outdoor kitchen or BBQ alfresco setup
- Rainwater harvesting syetem
- Heated towel rails
- Pendant lighting packages
- CCTV & alarm system
- Smart home package
- Exposed aggregate driveway
- Higher performance windows / privacy glozlng
- Upgrade facade packages
- Registered Architect-design
- Architects & engineers documentation
- CDC or DA approval support
- Stormwater design
- BASIX certificate
- Long Service Levy
- Home Building Compensation Fund (HBCF)
- Standard construction insurance
ARCHITECTURAL DESIGN & STREET APPEAL
- Contemporary facades with coordinated material and colour palette
- Render, feature brickwork, or vertical cladding accents
- Recessed balconies / screens for privacy and depth
- Compliance with NSW Housing Diversity Code (attached dual occupancy standards)
- Passive solar and climate-aware design (east-west orientation where possible)
- Letterbox numbers integrated into frontage
STRUCTURE & BUILD QUALITY
- Engineer-designed concrete slab on ground
- Brick veneer or full masonry construction (par BASIX & engineer requirements)
- Structural steel baams as required
- 2.7m ground floor ceilings, 2.4-2.6m first floor ceilings (subject to design)
- Souncl—rated party wall and thermal insulation
- Termite protection system
- Sarking to roof
- Colorbond or concrete roof tiles
- 90mm wall frames
- Fire-rated and acoustic party wall system compliant with NCC
GARAGE & DRIVEWAY
- Choice of Single or Double Lock- Up Garage
- Sectional Colorbond garage door with remote control
- Internal access door (where design permits)
- Concrete driveway (plain or exposed aggregate optional upgrade)
- Provision for EV charging point rough-in
- Provision for garage storage shelving
WINDOWS, DOORS & LIGHTING
- Aluminium framed windows and sliding doors
- Flyscreens to all operable windows
- Sliding stacker doors to alfresco where applicable
- Solid core internal doors
- Feature entry door with digital smart lock
- Dimmable LED downlights throughout
- Natural light—maximising layouts, north—facing windows where possible
KITCHEN – FUNCTION & STYLE
- Designer layout (island bench where space permits)
- 40mm stone benchtops
- Waterfall edge to island (design dependent)
- Full-height splashback tiles
- Soft—close cabinetry A drawers (polyurethane or laminate)
- Feature overhead cupboards
- Stainless steel undermount sink with pull—out mixer top
- Stainless steel appliances: 900mm cooktop, 600mm built-in oven, 600mm rangehood ducted externally, dishwasher
- Walk-in pantry or large built-in pantry
BATHROOMS & ENSUITES
- Floor-to-ceiling tiling in wet areas
- Semi—frameless shower screens
- Freestanding bathtub (main bathroom)
- Wall—hung or semi—recessed vanities with stone tops
- Back-to-wall toilet suites
- LED mirrors (design dependent)
- Quality chrome or matte block topware
- Ensuite to master bedroom
BEDROOMS & STORAGE
- Master suite with walk-in robe
- Built—in wardrobes in bedrooms 2 & 3
- Premium carpet with underlay in bedrooms
- Linen cupboard storage
- Extra TV and data points in master bedroom
FLOORING
- 600×600 porcelain tiles to ground floor living areas
- Timber-look hybrid flooring to ground floor living zones (optional upgrade)
- Carpet upstairs (bedrooms and hallways)
- Tiled alfresco (where applicable)
COMFORT & ENERGY EFFICIENCY
- Ducted raverse-cycle air conditioning
- LED lighting throughout
- Instantaneous gas hot water system
- Roof insulation and energy-efficient glazing
- Minimum 6.6kW solar PV system
- BASIX compliance
- Smoke alarms (hard—wired with battery backup)
LAUNDRY
- Custom cabinetry with stone benchtop
- Stainless steel laundry tub
- Tiled floor and splashback
- External access (design dependent)
EXTERNAL & LANDSCAPING
- Turf to front and rear yards
- Concrete paths & alfresco tiled area
- External lighting
- Clothesline & garden tap
- Standard boundary fencing to side and rear
SITE WORKS
- Bulk excavation and site levelling
- Soil compaction and preparation for slob
- Footings and drainage trenches
- Stormwater connection to Council requirements
- Temporary sediment control during construction
- Grading for site drainage
- Provision for driveways, paths, and alfresco slob
- Connection to water, sewer, and electricity services (where applicable)
- Letterbox numbers installed and aligned with Council addressing
SAFETY & TECHNOLOGY
- Hard-wired smoke alarms with battery backup
- Security system cabling & power points
- Smart thermostat and data points in key living areas
- NBN/FTTP compliant cabling
LIFESTYLE & DESIGN TRENDS FOR 2026
- Ample natural light, natural materials (timber tones, stone), and connection to outdoor spaces
- Space for flexible work—from—home or study niches
- Biophilic touches (optional): skylights, glazed panels, planters
OPTIONAL UPGRADES
- Skylights
- Feature staircase wlth glass balustrade
- Outdoor kitchen or BBQ alfresco setup
- Rainwater harvesting syetem
- Heated towel rails
- Pendant lighting packages
- CCTV & alarm system
- Smart home package
- Exposed aggregate driveway
- Higher performance windows / privacy glozlng
- Upgrade facade packages
COMPLIANCE & DOCUMENTATION
- Registered Architect-design
- Architects & engineers documentation
- CDC or DA approval support
- Stormwater design
- BASIX certificate
- Long Service Levy
- Home Building Compensation Fund (HBCF)
- Standard construction insurance
Our Process
What’s the cost of building a duplex in Sydney, Newcastle, the Central Coast and Hunter Valley?
GET A FREE SITE INSPECTION AND FIXED-PRICE DUPLEX QUOTE NOW
Take advantage of this no-obligation offer and move forward on your duplex project today!
No hidden costs. Free site inspection.
5 Benefits of Building a Duplex in NSW
Boost land value
Develop two dwellings on one land.
Generate rental income
Live in one house and rent the other side to offset your mortgage.
Multigenerational living
Keep family close while maintaining privacy.
Strong investment returns
Duplexes deliver strong capital growth & rental yields.
Potential to subdivide
Depending on council requirements, you may be able to strata-title each dwelling for independent sale.
Our Testimonials
Your home should be a true representation of your personality and lifestyle — and at Amescorp, we’re here to bring that vision to life. As experienced specialists in custom home building, we work closely with you to design and construct a home tailored to your unique needs. Our skilled and passionate team is committed to transforming your ideas into a beautiful, functional space you’ll be proud to call your own.