What We Build

Side-by-Side Duplex

Two homes positioned alongside each other on a single lot, each with its own street frontage. Ideal for wider blocks seeking Torrens title subdivision potential. Both residences enjoy generous floor plans, private outdoor space, and distinctive facade treatments.

Split-Level Duplex

Perfect for sloping sites. We step the design with the land, creating separate entries at different street levels. This approach reduces excavation costs and results in homes that feel naturally placed within the landscape.

Stacked Duplex (Over-Under)

One dwelling above the other, each with separate access. A space-efficient solution on narrower lots where side-by-side isn’t feasible. Upper homes often capture better views and breezes; lower homes enjoy direct yard access.

Rear-Loaded Duplex

Designed for deep blocks where vehicle access is from a rear laneway. Front facades remain clean and pedestrian-friendly, with garages tucked behind the building line.

Why Build a Duplex with Sydland Homes?

True Customisation, Not Mirror Images
We rarely build identical halves. Our duplex clients typically want each dwelling to suit a different purpose—one might be the principal family home, the other a low-maintenance rental or in-law accommodation. We tailor internal layouts, specifications, and even external finishes to match.

Subdivision-Ready from Day One
If your goal is to sell each dwelling separately, we design with subdivision in mind. We coordinate early with surveyors and town planners to ensure your duplex meets the requirements for Torrens or Strata title lodgement. This includes separate services, individual meters, and compliant private open space.

Council & CDC Expertise
Duplex approvals are complex. Some sites qualify for fast-track CDC approval; others require a merit-based DA. We’ve delivered duplexes under both pathways across Sydney’s most restrictive council areas. We’ll tell you upfront which route applies to your block—and we’ll manage every step of the application.

Site Optimisation
Every square metre counts. Our in-house design team is highly experienced in squeezing maximum yield from challenging sites: narrow frontages, battle-axe shapes, heritage conservation areas, and land with significant fall or easements. We find solutions where others see obstacles.

Investor-Grade, Family-Finished
Even when a duplex is built for investment, we finish it like a home. Quality fixtures, durable flooring, energy-efficient glazing, and landscaped boundaries. A well-finished duplex rents faster, sells higher, and holds its value longer.

Your Questions, Answered

Is my block eligible for a duplex?
Eligibility depends on your council’s LEP and DCP controls—specifically minimum lot size, frontage width, and deep soil requirements. Many Sydney councils now encourage medium-density housing, but rules vary significantly. We provide a free, no-obligation site assessment to confirm your block’s potential and identify any showstoppers early.

What’s the difference between Torrens and Strata title?
Torrens title means each dwelling sits on its own separately titled piece of land. This requires formal subdivision and is generally preferred by buyers. Strata title means the dwellings share a single lot, with individual ownership of the home and shared ownership of common areas. We guide you through both models and help you decide which aligns with your exit strategy.

How much does a duplex cost to build?
Duplex projects involve twice the structure, twice the services, and often significant site works. As a guideline:

• Standard side-by-side (approx. 300–350m² per side): $1.5M – $1.9M

• Premium finishes, larger footprints, or complex sites: $2.0M – $2.5M+

• Split-level or over-under designs: priced individually based on site conditions

These figures include standard inclusions, approvals, and site costs. We provide fixed-price contracts so there are no surprises.

How long does a duplex build take?
Our standard contracted build time for a duplex is 13–15 months, depending on design complexity, weather, and council conditions. We’ve completed many duplexes on or ahead of schedule. You’ll receive weekly progress updates so you always know where your project stands.

Can I live in one side and sell the other?
Yes—this is one of the most popular duplex strategies. It allows you to offset your own mortgage with rental income or sales proceeds while staying in your preferred neighbourhood. We can design the two halves to different specifications, so your residence feels fully customised while the second dwelling is optimised for the rental or sales market.

What about stormwater and easements?
Duplex sites require careful stormwater planning—often involving On-Site Detention (OSD) tanks, shared drainage lines, and negotiation with neighbours for overland flow paths. We engage hydraulic engineers early in the design phase to solve these challenges before they become delays.

Our Duplex Process

1. Feasibility & Due Diligence
We review your title, council controls, site contours, and services. You receive a clear go/no-go recommendation within days.

2. Concept Design & Yield Study
We prepare block layout options showing dwelling positions, private open space, parking, and subdivision potential. You choose the model that best suits your goals.

3. Approvals & Documentation
We lodge your CDC or DA, coordinate with certifiers, and compile all required reports—traffic, flooding, arboriculture, and geotech. You don’t lift a finger.

4. Fixed-Price Tender & Contract
Once approved, we provide a fully itemised fixed-price contract. Every element is scoped—no vague allowances, no hidden exclusions.

5. Construction & Handover
Our site team delivers your duplex with the same care we bring to every Sydland home. You receive two occupation certificates, two sets of keys, and the satisfaction of seeing your land’s full potential realised.

Start Your Duplex Journey

Whether you’re building for family, retirement income, or a development exit, Sydland Homes has the expertise to deliver a duplex that performs—beautifully and profitably.

 Call us: 1800 140 000
 Email: [email protected]
 Visit our studio: 17/4 Chaplin Dr, Lane Cove West (by appointment)