Duplex builder in West Ryde

We’ve built a duplex in West Ryde, and our base in Rydalmere is just over the boundary. AGA Building is a family-run, licensed builder. We design, get approval for and build duplexes, and Andrew supervises every job on site from demolition to handover.

Can you build a duplex in West Ryde?

West Ryde is in the City of Ryde. Much of its housing is on the old quarter-acre blocks, with Federation, Californian bungalow, fibro and 1960s brick homes, and many of them have room for a duplex. In the 2021 census, about 11% of West Ryde’s homes were already semi-detached.

West Ryde station and town centre are covered by Stage 2 of the NSW Low and Mid-Rise Housing Policy, so blocks close to the station may qualify on a smaller lot:

Where your block is	Minimum lot size	Minimum width
Within the mapped area, about 800 m walk from West Ryde station and town centre	450 m²	12 m
Elsewhere in West Ryde (Ryde LEP 2014)	580 m²	15 m road frontage

What we check on West Ryde blocks

• Station area. It’s measured by walking distance, so two blocks in the same street can fall either side. We check the official map.
• Victoria Road and the railway. Blocks near busy roads or the line may need acoustic design and can have driveway limits.
• Slope and drainage. Streets falling toward the Parramatta River often need careful stormwater design.
• Heritage. A few heritage items, such as Riverview House, can affect the design of neighbouring blocks.

CDC or DA in West Ryde?

A regular block that meets every standard may suit a complying development certificate (CDC), which is usually faster. Undersized, heritage-affected or unusual blocks normally need a development application (DA) to the City of Ryde. We work this out at the start and manage the approval for you.

Our West Ryde duplex

We designed and built our West Ryde duplex under the same City of Ryde controls, and handed it over in 2022. We’ve also built nearby in Ermington and Rydalmere, and we build across Ryde, Eastwood and North Ryde.

How we build your West Ryde duplex

1. Free block check. Zoning, station area, lot size, frontage and any red flags.
2. Design. Plans that suit your block and your goals, whether you live in one home, sell or lease.
3. Approval. CDC or DA with the City of Ryde, including the reports your block needs.
4. Demolition and construction. Andrew runs the site, a few minutes from our base.
5. Handover. A final walkthrough, with every certificate and warranty document.

West Ryde duplex questions

Is my block close enough to West Ryde station for the 450 m² rule?

The area is mapped by walking distance from the station and town centre, and some land is excluded. We check the official map as part of our free block check.

My frontage is under 15 m. Is a duplex still possible?

Sometimes. The City of Ryde has approved DAs where a block is narrower at the street but 15 m wide at the building line. It depends on the block and the design.

What will a West Ryde duplex cost?

It depends on the size, finishes and slope. Our duplex cost guide covers the main costs, and we’ll give you a realistic budget once we’ve seen the block.

General information, current as of October 2026. Planning controls change, so always confirm the rules for your property with the City of Ryde or a certifier. Sources: City of Ryde (2021), NSW Planning – Low and Mid-Rise Housing Policy.