A complete, granular estimate of how tall every building in the country stands, resolved to the Microburb and inferred where public records fall silent. This paper describes the dataset, and one concrete thing it settles: whether building height predicts capital growth.
By Luke Metcalfe · Founder, Microburbs ResearchBuilding height is recorded for only a fraction of Australian properties; public records run out for most of the country. This paper describes a dataset that closes that gap: a height estimate for every one of more than 15 million addresses across every state and territory, resolved to the Microburb level and inferred where direct records are silent. To our knowledge it is the most complete and most local building-height picture assembled for Australia, and it is the primary contribution. We then put it to one concrete test, whether height predicts capital growth, using 250,000 verified resales from 2018 to 2026, each compared to a matched local benchmark. We find no reliable link: once location is held constant, taller and shorter buildings grew at rates that cannot be told apart. The widely held belief that houses outperform apartments reflects where apartments are concentrated, not their height. Building height is best read as a granular measure of how densely an area is built, not as a predictor of capital growth.
We measured the height, in storeys, of the building at more than 15 million addresses, covering every state and territory and current to 2026. Heights were assembled from every available source and, for the majority of buildings where direct records are silent, inferred with proprietary methods, then reconciled into a single best estimate for each building. We describe what the dataset achieves, not the methods behind it.
The height map covers every address. The growth test draws on the 250,000 of those addresses that have changed hands at least twice through April 2026, the verified resales that let us measure capital growth directly. We assessed each resale against a matched control of nearby properties held over the same window. Comparing each sale to its immediate surrounds, rather than to a city-wide or national average, is what isolates the effect of the building itself from the effect of its location. We examined the relationship both raw and location-adjusted, and across height bands ranging from single-storey houses to towers above 11 storeys. To protect the method, we describe what it achieves rather than its internal mechanics. This concerns capital growth specifically; it is not a study of rent or yield.
The central result is the absence of a pattern. When each resale is compared to nearby properties over the same period, the growth gap between height bands is small and, crucially, does not widen or narrow as buildings get taller.
| Typical building height | Resales in sample | Growth vs local area |
|---|---|---|
| 1 storey (houses) | 149,089 | −1.0% |
| 2 storeys | 2,632 | −1.6% |
| 3 storeys | 2,398 | −1.1% |
| 4 to 6 storeys | 71,610 | −1.2% |
| 7 to 10 storeys | 15,806 | −0.9% |
| 11 storeys and above | 8,067 | −0.3% |
Each figure is a building's capital growth measured against nearby properties over the same holding period, 2018 to 2026. A height effect would show these figures sliding steadily one way as buildings rise. They do not: every band sits within about one and a half percent of its local benchmark, and the tallest band is the closest to it. Note that every band sits slightly below its benchmark, a small offset that comes from resold homes tending to lag the broader local average. The decisive point is that this offset is the same size at every height, so it cannot be what separates tall buildings from short ones; it nets out of the height question entirely.
Raw versus adjusted. Looked at raw, single-storey housing does appear to outpace high-rise, and by a wide margin. That apparent lead was several times larger than any difference that survived the location adjustment, where it shrank to nothing. In plain terms, the houses-beat-apartments story is a story about location, established inner-city areas where apartments cluster, and not about how tall the building is.
Measuring height at this scale also settles a separate question: which suburbs are Australia tallest? The most vertical suburbs are in Melbourne, not Sydney. Each row below is a single suburb; these are precinct-level rankings, not whole-of-city averages.
| Suburb | City / State | Typical height | Tallest building |
|---|---|---|---|
| Southbank | Melbourne, VIC | 36 storeys | 92 storeys |
| Melbourne CBD | Melbourne, VIC | 25 storeys | 87 storeys |
| Docklands | Melbourne, VIC | 19 storeys | 42 storeys |
| Brisbane City | Brisbane, QLD | 17 storeys | 54 storeys |
| Sydney CBD | Sydney, NSW | 14 storeys | 67 storeys |
At the other end of the scale sit newer detached-house estates. The Ponds, Sydney (NSW) and Marsden Park, Sydney (NSW) both average a single storey, almost entirely freestanding houses. To illustrate the headline finding: Southbank (towers) and The Ponds (houses) sit at the two extremes of how Australia is built, yet neither's height told us anything about how its prices moved against its own surrounds from 2018 to 2026. Capital growth impact of building height: no reliable signal.
"Comparing to a local benchmark removes the very effect you are testing." It does the opposite. Tall buildings concentrate in supply-constrained, higher-priced areas. Without holding location constant, a height comparison simply measures those areas, not the buildings. We also report the raw picture, in which low-rise leads, and show that lead is fully accounted for by location. Within the same local areas, building height carries no growth signal.
"A few suburbs is not evidence." Agreed, and the finding does not rest on them. It is drawn from 250,000 resales across the country from 2018 to 2026. The named suburbs only make the height range concrete; they are illustrations, not the proof.
"The 2018 to 2026 window is unusual, and might be averaging out a signal that comes and goes." It is not. We split the test by phase of the rate cycle and by market. Height showed no meaningful link with growth in the falling-rate years to 2021, nor in the rising-rate years since, nor in Sydney, Melbourne, Brisbane or Perth examined one at a time. The null result is not an artefact of one period or one city; it is the same wherever and whenever we look.
This study concerns capital growth alone. Rental yield and total return differ between houses and apartments, and are outside its scope. Building height and dwelling type travel together, taller buildings are mostly apartments, single-storey ones mostly houses, so the result is best read as a finding about height across that spectrum rather than height stripped of every other trait. The resale test necessarily covers properties that have sold at least twice, so first-sale-only and long-held stock are under-represented. We measure existing height; brand-new supply still to be approved or built is a separate, forward-looking risk this paper does not quantify. The named suburbs are illustrative, not recommendations.
How tall a building stands tells you how densely its area is already built, not where its price will head. Investors who pay a premium for low-rise, or who avoid tower suburbs on principle, are acting on a signal the data does not support. The productive use of building height is as a starting read on competition: a suburb already thick with towers holds a lot of stock that competes with yours, while a low-rise suburb may have room to add it. Whether new supply is actually coming, and which suburbs actually grow, are separate questions, answered by a suburb's approval pipeline, its fundamentals and its real price history, all of which sit in its Microburbs report.
The distinction that actually matters. The buildings already standing around you, however tall, are not the threat to your growth. Established density usually arrives with the shops, transport and demand that support prices. The threat is a wave of brand-new homes much like yours completing at once, the close substitutes you must compete against when you sell. Two companion studies show this directly: the areas with the most new dwelling supply nearby grew the slowest, while the quiet, low-density suburbs whose housing is hardest to replicate grew the fastest. Building height is the wrong lens for growth. New supply and scarcity are the right ones.
Building height answers the supply question. For the growth question, a suburb's Microburbs report brings its scores, supply pipeline and real price history together in one place.
