frequently asked question

Why doesn't YIMBY Melbourne endorse mandatory inclusionary zoning?

Mandatory inclusionary zoning (MIZ) is a well-intended policy, however, when implemented poorly—or used in bad faith—it can contribute to worsening the housing crisis by restricting housing supply while creating little to no additional affordable/social housing. 

While it’s understandable why there are common myths around developers being able to absorb the large amounts of price-controlled housing seen in many implementations of MIZ policies, the bulk of the existing evidence (Mock et al. (2023), Bento et al. (2009), Means & Stringham (2015) and Schuetz (2010)) suggests that MIZ, without well-calibrated incentives, substantially restrict new housing supply—thus making housing affordability worse. In essence, mandatory inclusionary zoning policies work as an implicit tax on new homeowners.

This is not to say that IZ as an idea is inherently unworkable, nor do we need to lose its cost neutrality. When it’s paired with the correct incentives it can provide a potent solution. This is why YIMBY Melbourne endorses incentivised IZ models such as that seen in our Missing Middle report or the Victorian government’s Development Facilitation Program. Additionally, we acknowledge that there are limited small-scale examples of MIZ working in Australia, for instance, within Sydney’s Ultimo Pyrmont urban redevelopment precinct—which aimed for and exceeded a 6% affordable housing target.

Another key question around inclusionary zoning policy is why the burden of providing affordable and social housing should be borne predominantly by those building new housing, rather than by society as a whole. 

This is why we support policies such as Victoria’s Airbnb levy—the revenue from which goes straight to Victoria’s social housing authority—and a broad-based land tax. The state government needs to build more well-located social housing and cannot rely on shifting the responsibility and costs to private developers and new homeowners in order to meet the current shortfalls. 

The reason, then, that we favour incentivised inclusionary zoning models, is that they align the interests of both the developer and society on the whole, with planning authorities rewarding the inclusion of affordable and social housing with incentives such as third-party appeal protection, additional height allowance, and other increases in yield or stakeholder certainty. While these models do need to be carefully calibrated to ensure cost neutrality for both the government and developers, YIMBY Melbourne believes that policies that align all stakeholders to create better outcomes for Melburnians are the policies we should pursue most intensively.

Your hottest YIMBY Queries, Answered

Frequently Asked Questions

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Are YIMBYs aligned with any political parties?
Aren't Melbourne apartments low-quality? Why do you want more of them?
Aren't tax concessions the biggest cause of the housing crisis? Why focus on zoning and planning?
Can't we just keep building greenfield/outer suburban developments?
Can't we just stop foreign investment to combat the housing crisis?
Can't we just stop immigration to solve the housing crisis?
Do you support stronger renter protections?
Doesn't new development just push poor people out of the city?
Don't high permit approval rates show that planning isn't the issue?
How does market-rate housing supply benefit those most in need?
Isn't zoning and planning reform just a giveaway to developers?
Local councillors are democratically elected representatives. What’s wrong with them having final decision-making powers over planning matters?
Loosening planning controls may result in more ugly modern buildings. Shouldn't new buildings be beautiful?
Shouldn't the local community get the final say on what happens in their "backyard"?
There are already so many apartments. Do we need more?
What about parking? Won't new developments create massive congestion in our cities?
What about those one million vacant homes?
What can we do about land banking?
What if I don’t want to live in an apartment?
What's the problem with building setbacks?
Why build denser cities? Isn't it better to decentralise?
Why can't the government just build public housing for all?
Why did rental prices go up during COVID?
Why do you hold councils accountable for housing supply delivery?
Why does YIMBY Melbourne have such a problem with heritage overlays?
Why doesn't YIMBY Melbourne endorse mandatory inclusionary zoning?