Can You Build a Duplex in Bankstown? Zoning, Costs & Council Rules (2026)

Building a Duplex in Bankstown: Complete Guide

The Canterbury-Bankstown LGA is one of Sydney's largest and most populous local government areas, home to over 380,000 residents across 28+ suburbs. With the Sydney Metro City & Southwest extension due to reach Bankstown in 2026, the area is experiencing significant interest from developers and owner-builders looking to maximise their property's potential through duplex development.

This guide covers duplex rules, zoning, costs, and opportunities across the Canterbury-Bankstown council area — with a focus on Bankstown and surrounding suburbs.

R3 Zoning Suburbs in Canterbury-Bankstown

Duplex development requires R3 Medium Density Residential zoning under the Canterbury-Bankstown LEP 2023. Key suburbs with R3 opportunities:

• Bankstown — significant R3 zoning around Bankstown CBD and along main corridors. Bankstown Metro 2026 is driving rezoning and development uplift • Padstow — R3 pockets near Padstow station. Family-friendly suburb with strong demand • Revesby — R3 areas near Revesby station. Growing café and retail precinct • Punchbowl — extensive R3 zoning. Strong rental market • Yagoona — R3 zones along major roads. Good entry-level land prices • Campsie — R3 and R4 zoning around Campsie station • Belmore — R3 areas near Belmore station • Roselands — some R3 pockets near Roselands shopping centre • Greenacre — R3 zones along Waterloo Road corridor • Bass Hill — limited R3, but some dual occupancy opportunities

**Bankstown Metro 2026 impact:** The Sydney Metro extension is creating Transit-Oriented Development (TOD) zones around Bankstown, Canterbury, Campsie, Belmore, and Lakemba stations. These areas are being considered for upzoning from R2 to R3/R4, which will create new duplex development opportunities. Contact Buildana for the latest zoning updates.

Canterbury-Bankstown Duplex Requirements

Key duplex requirements under Canterbury-Bankstown LEP 2023:

**Minimum lot size:** • 500sqm minimum for dual occupancy • 250sqm minimum per resulting lot if subdividing • 12m minimum frontage (15m preferred)

**FSR:** • R3 zone: 0.5:1 to 0.8:1 (varies by precinct — some transit corridor precincts have higher FSR)

**Height:** • Maximum 9m or 2 storeys

**Car parking:** • 2 spaces per 3+ bedroom dwelling • 1 space per 1-2 bedroom dwelling

**Setbacks:** • Front: 5–6m (varies by street) • Side: 900mm–1.5m • Rear: 6m minimum

**Private open space:** • 24sqm minimum per dwelling • 4m minimum dimension

**Landscaping:** • 30–40% of site (varies by precinct)

Costs and Returns in Canterbury-Bankstown

Duplex costs in Canterbury-Bankstown LGA:

• Attached duplex (2 x 3-bed, 150sqm each): $750,000 – $1,100,000 • Detached duplex (2 x 3-bed, 120sqm each): $650,000 – $950,000 • Premium duplex (2 x 4-bed): $1,000,000 – $1,500,000

**Soil and site conditions:** • Georges River and Cooks River floodplain: Parts of Bankstown, Padstow, Revesby, and Roselands are within flood planning areas. Buildana checks flood mapping for every site • Salt Pan Creek corridor: Flood-prone areas near Padstow and Revesby • Soil: Generally moderately to highly reactive clay (Class M to H1) across the LGA. Some sandy soils near river corridors

**Returns:** • Rental per dwelling: $580 – $800/week • Combined annual rental: $60,000 – $83,000 • Sale value: $800,000 – $1,100,000 per dwelling (Bankstown, Padstow, Revesby)

With Bankstown Metro arriving in 2026, property values and rental demand in the Canterbury-Bankstown LGA are trending upward. Building a duplex now positions you to benefit from this infrastructure-driven growth.

Buildana provides free duplex feasibility assessments for any property in Canterbury-Bankstown LGA. Call 0476 300 300.

Buildana builds across Sydney. Visit /duplex/duplex-developments to learn more or /advisory/development-feasibility to discuss your project.

Duplex Rules by LGA — Quick Comparison

How does Canterbury-Bankstown compare to other Western Sydney councils for duplex development? Here's a snapshot:

• Fairfield LGA — Min lot 600sqm (R3), 450sqm (Reform). FSR 0.65:1. Read /insights/can-you-build-duplex-fairfield-2026 • Liverpool LGA — Min lot 500sqm (R3), 450sqm (Reform). FSR 0.6:1. 6 stations. Read /insights/can-you-build-duplex-liverpool-2026 • Cumberland LGA — Min lot 600sqm (R3), 450sqm (Reform). FSR 0.6:1. Heritage overlays in some areas. Read /insights/can-you-build-duplex-cumberland-council-2026 • Canterbury-Bankstown — Min lot 500sqm (R3), 450sqm (Reform). FSR 0.6:1. Metro uplift areas. Read /insights/can-you-build-duplex-bankstown-2026 • Blacktown LGA — Min lot 500sqm (R3), 450sqm (Reform). FSR 0.5–0.6:1. Largest pool of eligible lots. Read /insights/can-you-build-duplex-blacktown-2026

Buildana builds duplexes across all five LGAs. Book a free feasibility assessment at /contact.