Sydney grapples with a worsening housing crisis driven by soaring land and construction costs, rapid population growth, and insufficient supply. Cities worldwide tackle similar challenges through aggressive public investments, flexible zoning, and streamlined approvals to boost home delivery. Planning experts highlight these approaches as viable models for Sydney, where supply shortages drive home ownership out of reach for many residents.
The latest State of the Housing System report projects Australia will miss its 1.2 million home target by 220,000 dwellings by 2029. New South Wales anticipates falling short of its 376,000-home goal until 2031. UNSW City Futures professor Chris Pettit emphasizes the need for bolder investments, especially in social and affordable housing. NSW Planning Minister Paul Scully notes that 79,300 homes currently under construction mark the highest figure in seven years, thanks to ongoing reforms.
Vienna’s Social Housing Model
Vienna leads globally in affordable housing, with 60 percent of residents in subsidized units. The city owns over 200,000 apartments, funded partly by a one percent salary levy. Robust tenant protections ensure stability, and eligibility covers middle-income families to foster diverse communities.
Sydney could scale public housing investments with population growth and require 30 percent affordable units in perpetuity for new projects. Anglicare group executive Rob Stokes suggests funding this through reforms to negative gearing and capital gains tax concessions.
Tokyo’s Flexible Zoning Laws
Tokyo permits mixed residential, commercial, and light industrial uses without rigid density limits. Its ‘as-of-right’ system auto-approves compliant developments, minimizing delays and costs.
Sydney might relax zoning in suburbs to enable density without sprawl. Urban Development Institute of Australia NSW chief executive Stuart Ayres advocates flexible zoning, quicker approvals, and lower government fees to overcome supply barriers.
New York’s Rail-Over Housing
New York transforms rail airspace into housing hubs, like Hudson Yards over 30 rail lines in Manhattan. This project will deliver 4,000 apartments, including affordable ones, plus public spaces and a school by the mid-2030s.
Sydney opportunities exist along rail corridors south of Central Station and in areas like Burwood, Chatswood, Parramatta, and Rhodes. Architect Philip Vivian urges releasing development rights for over-rail sites within 400 meters of stations. The City of Sydney explores converting rail yards near Macdonaldtown Station into 2,500 homes.
Freiburg’s Car-Free Suburbs
Freiburg’s Vauban district cuts costs by eliminating on-site parking, using peripheral communal garages instead. Residents access homes via foot, bike, or transit.
Sydney could apply this in transit-rich zones like Green Square and Bays Precinct. Committee for Sydney chief executive Eamon Waterford points out that ditching on-site parking saves $50,000 to $110,000 per underground space.
Stockholm’s Prefab Revolution
Stockholm mainstreams modular construction with flexible zoning, rapid permits, and land for prefab neighborhoods.
Australia’s Productivity Commission research shows modular methods halve build times and trim costs by 20 percent. Western Sydney University researcher Parisa Ziaesaeidi calls for faster approvals, fewer zoning hurdles, and government-industry partnerships. NSW considers reforms to simplify processes.
Singapore’s Integrated Mega-Projects
Singapore boasts high home ownership via state-led projects on public land, blending housing with transport, schools, parks, and health services. Retirement savings fund deposits.
University of Sydney professor Nicole Gurran argues for blending public, private, and non-profit delivery on state land via entities like Landcom to stabilize supply and affordability.
Paris’ Adaptive Reuse Permits
Paris issues reversible permits to convert offices, hotels, and car parks into homes swiftly, targeting 8,000 units amid post-pandemic vacancies.
Australian Institute of Architects NSW president Elizabeth Carpenter recommends streamlined paths and flexible zoning for Sydney’s adaptive reuse.
Vancouver’s Family-Friendly Apartments
Vancouver mandates 35 percent two- and three-bedroom units in rezoned developments for family housing in suburbs.
Sydney could set similar targets near jobs and transport. UNSW researcher Hal Pawson seeks a better housing mix beyond small apartments and detached homes. Urban Taskforce chief executive Tom Forrest stresses commercial viability.
Jakarta’s Rooftop Communities
Jakarta builds rooftop neighborhoods like Cosmo Park atop shopping centers, featuring roads, villas, and amenities.
Sydney could ease rules for rooftops over public buildings and retail. Western Sydney University researcher Ehsan Noroozinejad Farsangi proposes audits, airspace guidelines, and pilots.
Toronto’s Incentive-Driven Reforms
A $4.4 billion Canadian program rewards councils for barrier removal, enabling fourplexes, rental grants, and digital approvals in Toronto.
Governments could incentivize Sydney councils with rezoning aid and land identification. Business Western Sydney’s David Borger sees this easing restrictive rules.
Unconventional Ideas
Hamburg mandates development on vacant high-demand land. The Netherlands’ Oosterwold lets buyers fund infrastructure for cheaper plots. Busan’s floating city in South Korea generates its own energy and food. Poundbury, inspired by King Charles III, mixes uses with 35 percent affordable housing for ‘missing middle’ density.
UNSW’s Pettit stresses bold innovation as population growth outstrips supply.
