science

Sydney YIMBY

Sydney YIMBY is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sydney YIMBY rather than just read about it. In short: Sydney YIMBY is a group that advocates for greater housing supply in Sydney, New South Wales, Australia primarily through the aim of densification. The abbreviation YIMBY stands for yes in my backyard.

Key takeaways

Sydney YIMBY belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Sydney YIMBY to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sydney YIMBY from memory before moving on to harder problems.

Reference excerpt

Sydney YIMBY is a group that advocates for greater housing supply in Sydney, New South Wales, Australia primarily through the aim of densification. The abbreviation YIMBY stands for yes in my backyard.

History Justin Simon started Sydney YIMBY out of the frustration that a development near a light rail station in Leichhardt got blocked. The group had about 12 members when their first meeting occurred but that number has risen to 315 as of June 2025. In September 2025, the group supported a proposal by Inner West Council to rezone the areas of Ashfield, Croydon, Dulwich Hill and Marrickville to allow for high-density residential buildings such as apartments that are up to 22 storeys high. The plan will allow for 31,000 new homes over 15 years.

Functions The organisation grew out of a perceived need for more housing in Sydney and to counteract the power of NIMBYs (not in my backyard). Sydney YIMBY primarily advocates for their cause through arguments at council meetings and local events when new developments are proposed. The organisation is inspired by similar groups operating in the United States. The organisation is in favour of creating more houses close to public transport stops. Sydney YIMBY also advocates for reforms to heritage law. The Sydney YIMBY movement aims to bring down high housing prices with increased supply of housing.

References

Further reading Karp, Paul (23 September 2025). "At this council meeting, YIMBYs got the jump on NIMBYs". Australian Financial Review. Retrieved 29 September 2025.{{cite news}}: CS1 maint: deprecated archival service (link) Moloney, Joey (7 August 2023). "What's the YIMBY movement and how can it help housing policy?" (Podcast). Grattan Institute. Archived from the original on 10 August 2025. Retrieved 29 September 2025.

Worked examples

Example 1 — a first encounter with Sydney YIMBY

Start with the simplest possible case. Write down what Sydney YIMBY claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sydney YIMBY before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sydney YIMBY ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sydney YIMBY

In research: Sydney YIMBY appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Sydney YIMBY in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Sydney YIMBY is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2020s establishments in Australia, 2023 establishments in Australia, Non-profit organisations based in Australia, so understanding it makes those chapters shorter.
In everyday life: Look for Sydney YIMBY outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Sydney YIMBY in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sydney YIMBY means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Sydney YIMBY out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sydney YIMBY in simple terms?

Why does Sydney YIMBY matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sydney YIMBY?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sydney YIMBY.