The Australian property bubble is the ongoing debate in Australia as to whether or not the Australian property market is significantly overpriced, and due for a significant downturn (also called a "correction" or "collapse"). The debate has been ongoing since at least 2001, with Australian property prices continuing to rise. Some commentators, including one Treasury official, claim the Australian property market is in a significant bubble.
Various industry professionals have argued that it is not a bubble and that house prices have the potential to keep rising in line with income growth. Some commentators have blamed rising property prices on state governments' restrictions on land supply, driving up the cost of land, lots, and thus homes. Some have also blamed planning rules as acting to restrain supply of housing.
A property bubble is a form of economic bubble normally characterised by a rapid increase in market prices of real property until they reach unsustainable levels relative to incomes and rents, and then decline. Australian house prices rose strongly relative to incomes and rents during the late 1990s and early 2000s; however, from 2003 to 2012 the price to income ratio and price to rent ratio have both remained fairly steady, with house prices tracking income and rent growth during that decade. Since 2012 prices have once again risen strongly relative to incomes and rents. In June 2014, the International Monetary Fund (IMF) reported that house prices in several developed countries are "well above the historical averages" and that Australia had the third highest house price-to-income ratio in the world. In June 2016, the Organisation for Economic Co-operation and Development (OECD) reported that Australia's housing boom could end in 'dramatic and destabilising' real estate hard landing.
Australian property market
House prices to income ratio, 1965 to 2013.
The Australian property market has seen steady increases of around 3% per annum since the 1970s. Since the 1990s, however, prices have risen by around 6% per annum.
In the late 2000s, house prices in Australia, relative to incomes, were at levels similar to many comparable countries, prompting speculation that Australia was experiencing a real estate bubble like other comparable countries. Since then, several comparable countries have experienced property crashes.
Rising house prices
All capital cities have seen strong increases in property prices since about 1998. Sydney and Melbourne have seen the largest price increases, with house prices rising 105% and 93.5% respectively since 2009. These massive increases in house prices coincide with record low wage growth, record low interest rates and record household debt equal to 130% of GDP. This clearly shows unsustainable growth in property, driven by ever higher debt levels fuelled by the RBA's then chief, Glenn Stevens who began cutting rates beginning in 2011.
The Housing Affordability in Australia - Good house is hard to find report stated that "the average house price in the capital cities is now equivalent to over seven years of average earnings; up from three in the 1950s to the early 1980s." Some factors that may have contributed to the increase in property prices include:
- greater availability of credit due to financial deregulation.
- low interest rates since 2008, increasing borrowing capacity to borrow due to lower repayments.
- limited government release of new land (reducing supply).
- the average floor area of new houses has increased by up to 53.8% in the 18 years from 1984-85 to 2002-03.
- a tax system that favours investors and existing home owners, with policies such as negative gearing and capital gain tax discounts.
- government restrictions on the use of land preventing higher density land use.
- government restrictions on greenfield development designed to encourage "urban densification".
- high population growth (now about double the world average - see Population growth rates chart).
- 2008 foreign investment rule changes for temporary visa holders.
- introduction by local councils of upfront infrastructure levies in the early 2000s.
Influence of planning laws
Beginning in the 1980s, Australian states (who under the Constitution have control of environmental and land use issues) started progressively implementing more rigid planning laws that regulated the use of land. Planning laws often concentrated, after the 1990s, on restricting greenfield development in favour of "urban densification", or infill development. Land rationing is a system of banning development in all but designated areas, and can lead to extreme land price inflation if insufficient land is designated as allowed to be developed. The restrictive planning laws in Australia have used land rationing systems as part of the goal of restricting greenfield development in favour of infill development, but this inevitably lead to land prices, and thus house prices, rising significantly. There is good evidence to suggest that the price of a new unit of housing is the ultimate anchor of all housing in an area, so when planning laws that implemented land rationing severely drove up the cost of new homes, all other homes followed suit.
Influence of tax system
Chart: % Population Growth. Australia - high growth rate strategy at 2.1% - source & ABS.
The Reserve Bank of Australia has noted that there are "a number of areas in which the taxation treatment in Australia is more favourable to investors than is the case in other countries." The main tax incentives include tax deductions for losses on investment properties, even those that have been negatively geared, and the 50% discount on capital gains on sale of investments properties.
Investors using their superannuation for property investments have a tax advantage compared to 'savers' who are effectively taxed up to 45% (the top marginal taxation rate) on income from bank interest or bonds, as superannuation contributions are normally only taxed at around 15%.
Influence of banking system
The influence of interest rates and banking policy on property prices has been noted. The financial deregulation has led to greater availability of credit and a variety of financial products and options. Presently the Reserve Bank of Australia has maintained for some time a low cash interest rate policy which has also reduced the cost of financing property purchase. In addition, the easy availability of interest-only loans has also made possible for property investors to borrow to purchase a property and compounding the benefits of negative gearing.
Land price inflation is a story of housing debt
Debt growth averaged 15% per annum compounding (1998–2009). During the same period national economic growth was less than 3% with debt stripped out.
Between 1998 and 2008 inflation was about 36% and property prices increased by more than 300% in all capital cities except Melbourne (up 280%) and Sydney (up 180%).
Housing costs excluded from the CPI
One of the market distortions in the housing market relates to the calculation of the Consumer Price Index [CPI]. One senior economist noted ″Australia's main official cost of living measure, the consumer price index, is failing young Australians by excluding home purchase costs . . The index ignores price changes in the single biggest purchase a person (or household) is likely to make in their lifetime – a dwelling″ 
Immigration to Australia
A number of economists, such as Macquarie Bank analyst Rory Robertson, assert that high immigration and the propensity of new arrivals to cluster in the capital cities is exacerbating the nation's housing affordability problem. According to Robertson, Federal Government policies that fuel demand for housing, such as the currently high levels of immigration, as well as capital gains tax discounts and subsidies to boost fertility, have had a greater impact on housing affordability than land release on urban fringes.
The Productivity Commission Inquiry Report No. 28 First Home Ownership (2004) also stated, in relation to housing, "that Growth in immigration since the mid-1990s has been an important contributor to underlying demand, particularly in Sydney and Melbourne." This has been exacerbated by Australian lenders relaxing credit guidelines for temporary residents, allowing them to buy a home with a 10 percent deposit.
The RBA in its submission to the same PC Report also stated "rapid growth in overseas visitors such as students may have boosted demand for rental housing". However, in question in the report was the statistical coverage of resident population. The "ABS population growth figures omit certain household formation groups – namely, overseas students and business migrants who do not continuously stay for 12 months in Australia." This statistical omission lead to the admission: "The Commission recognises that the ABS resident population estimates have limitations when used for assessing housing demand. Given the significant influx of foreigners coming to work or study in Australia in recent years, it seems highly likely that short-stay visitor movements may have added to the demand for housing. However, the Commissions are unaware of any research that quantifies the effects." 
Some individuals and interest groups have also argued that immigration causes overburdened infrastructure.
However, higher house prices caused by immigration do not necessarily lead to lower housing affordability, particularly in the longer-term, because immigration in Australia has contributed to higher incomes, it has increased net government revenue, and it has contributed to economies of scale in many goods and services, such as public transport and mobile networks. Immigration in Australia has contributed to higher incomes due to higher economic growth due to migrants tending to be of working age, highly educated, and less entitled to welfare than citizens in some cases before they obtain citizenship. Immigration in Australia has increased net government revenue due to immigrants having a higher workforce participation rate and tending to be in a higher tax bracket; and due to immigration fees; and due to some non-citizen residents having to pay higher rates of income tax than citizens; and due to some non-citizens having to pay more than citizens for university units and medical care. Without the net revenue it has received from migrants, the Australian government would have been forced to increase the cost of living or to reduce incomes (possibly by raising taxes, possibly by not granting pay-rises to government staff, or possibly by offering less generous welfare and services).
Foreign investment in residential property
In December 2008, the federal government introduced legislation relaxing rules for foreign buyers of Australian property. According to FIRB (Foreign Investment Review Board) data released in August 2009, foreign investment in Australian real estate had increased by more than 30% year to date. One agent said that "overseas investors buy them to land bank, not to rent them out. The houses just sit vacant because they are after capital growth."
In April 2010, the government announced amendments to policies to "ensure that foreign non-residents can only invest in Australian real estate if that investment adds to the housing stock, and that investments by temporary residents in established properties are only for their use whilst they live in Australia."
Under the rules, temporary residents and foreign students will be:
- Screened by the Foreign Investment Review Board to determine if they will be allowed to buy a property.
- Forced to sell property when they leave Australia.
- Punished if they do not sell by a government-ordered sale plus confiscation of any capital gain.
- Required to build on vacant land within two years of purchase to stop "land banking".
Failure to do this would also lead to a government-ordered sale.
Several Australian Banks and lenders provide home loans to non-residents for the purchase of Australian real estate. This is also thought by some to have contributed to the increases in Australia's property prices.
In 2002, the government initiated a Productivity Commission Inquiry into the homes ownership in Australia. The Commission's Report titled 'First Home Ownership' observed inter alia that "general taxation arrangements [capital gains tax, negative gearing, capital works deductions and depreciation provisions] have lent impetus to the recent surge in investment in rental housing and consequent house price increases."
The government's response to the report stated that "There is no conclusive evidence that the tax system has had a significant impact on house prices."
In 2008, another study was commissioned – the 2008 Senate Select Committee on Housing Affordability in Australia. The report noted that "On some measures, housing affordability is at a record low." 
'Australia's Future Tax System' (AFTS) review, more commonly known as the 'Henry Tax Review', made a number of recommendations that would have impacted on the housing market, including:
- introduction of land tax "on all land . . removing disincentives for institutional investment in rental property",
- that "transfer taxes on property should be reduced, and ultimately removed",
- a move to "more neutral personal income tax treatment of private residential rental investment . . through a 40 per cent discount on all net residential rental income and losses, and capital gains."
In regard to recommendations of changes to tax policy that might impact the housing market, the Government advised "that it will not implement the following policies at any stage" (excerpt of list):
- include the family home in means tests (see Rec 88c),
- introduce land tax on the family home – this is a state tax and thus an issue for the states (see Rec 52 & 53),
- reduce the CGT discount, apply a discount to negative gearing deductions, or change grandfathering arrangements for CGT (see Rec 14 & 17c)
In May 2015, the House of Representatives Standing Committee on Economics started an Inquiry into Home Ownership. Almost two years later the announcement was made that the Inquiry had made no recommendations whatsoever.
In 2017, a Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry was established. Hearings into banking misconduct began on 13 March.
Effect of inflated housing prices on the greater economy
Diverting capital away from the rest of the economy
Increased residential housing costs can cause excessive lending to the residential housing sector, at the expense of businesses. This can lead to "a banking system which allocated capital away from the most productive areas of the economy — business — is ultimately bad for growth, bad for competition, bad for jobs, bad for business and in the end, bad for Australia."
Research conducted in overseas markets confirms that "in areas with high housing appreciation, banks increase the amount of mortgage lending and decrease the amount of commercial lending as a fraction of their total assets. This allocation results in firms receiving reduced loan amounts, paying higher interest rates, and reducing investment."
Mortgage and rent stress
Increased housing prices and therefore increased borrowings can lead to difficulty in meeting housing payments. According to Ratings agency Standard & Poor's (S&P), "Arrears for sub-prime loans backing RMBS [residential mortgage-backed securities] jumped 126 basis points to 11.45 per cent"
Australian specific market factors
The Australian market had several features either singly or together are not typical in other housing markets, being;
- Very constricted land supply and extremely onerous planning approval processes
- Unusually high stamp duties
- High proportion of variable rate mortgage loans compares to past housing bubbles outside of Australia, making borrowers more vulnerable to rising interest rates
- Income Tax relief through negative gearing
- Capital gains tax concessions encourages property investment over investing in other asset classes
- Social security (Centrelink) that offers payment including rent assistance that is calculated on the amount of rent paid
- Only recourse loans
- One of the most highly urbanised populations
- Large areas of rural and remote Australia can not secure loans from banks against land in those areas.
- 1985: Australian government quarantines interest expenses, so that interest can only be claimed against rental income, not other income.
- 1987: Negative gearing is reintroduced.
- 1998 to 2008: real net national disposable incomes increase by 2.8% a year on average from about $32,000 to about $42,000 per year. There is a rise in the number of two-income households, relaxation of lending standards, active promotion of real estate as an investment, population growth creating demand that was not matched by supply, planning and land release issues and a tax system that was skewed in favour of property investors.
- 1999: Property sale proceeds subject to Capital Gains Tax reduced from 100 to 50 percent (for property held at least one year), while 100 percent of costs remained deductible.
- 2000: July - The Federal government introduces the First Home Owners Grant of $7,000 for established homes, and $14,000 for newly built homes.
- 2002: Urban Growth Boundary introduced for Melbourne, severely limiting land supply.
- 2003: Significant amendments to Queensland's planning law, the Integrated Planning Act, are made by state government. These amendments aimed to better protect the environment by stopping "urban sprawl", and lead to massive land price inflation. Queensland's property prices start to rise quickly at this point.
- 2004: The Productivity Commission Inquiry on 'First Home Ownership' published its findings (No. 28, 31 March 2004). It identified several factors that had contributed to the rapid increase in real estate prices, including overall fairness of the tax system, lending regulations, lower interest rates and planning issues.
- 2008: A Senate Select Committee on Housing Affordability was established. Its final report 'A good house is hard to find' included dozens of recommendations.
- 2008: October - The First Home Owners Grant Boost is introduced as an addition to the First Home Owners Grant. This consisted of an extra $14000 available to first home owners buying or building a new home, as well as an extra $7000 made available for established homes. First Home Saver Accounts are also introduced, where the Federal Government will contribute up to $850 per annum towards savings for a deposit to purchase housing.
- 2008: December - FIRB rules allow temporary visa holders including students, to more easily buy up 'second-hand dwellings'. Changes did not require notification of sales be made to the FIRB and the $300,000 cap on price was removed.
- 2009: October - First Home Owners Grant Boost is withdrawn. The UNSW City Futures Research Centre director said "the boost has resulted in inflated prices" and had created "a bit of a mini-bubble". A senior economist of Housing Industry Association (HIA) said the boost has not pushed prices up significantly.
- 2009: November - "capital city house prices . . climbed average 10 per cent" in 2009. Melbourne led the "house price boom, with values up 14.9 per cent in the 10 months . . to an average of $481,247." 
- 2009: December - Reporting of RE data was questioned by one source: "AVERAGE house prices have been overstated by up to 18 per cent by the real estate industry . . . In September the average house price quoted by the Real Estate Institute of Victoria was $67,000 higher than the official figure, based on preliminary valuer-general data . . "
- 2010: January - The removal of First Home Owners Grant Boost. Mortgage applications reduce by 21.2%. First-home buyers account for 13.1 per cent of new loan applications in December, whereas nine months previously they were at 28.1 per cent.
- 2010 March: ABS declares that house prices "soared 20 per cent in the 12 months to March" - a rate that was described as the "fastest ever recorded" in Australian history. The Head of Australian economics at National Australia Bank admits "This is a shocker".
- 2010: April - Rules allowing foreign investment in real estate that were introduced in 2008 are withdrawn. Temporary residents are required to sell their Australian property when they leave Australia.
- 2010: May - 'Australia's Future Tax System' (AFTS) Review (aka 'Henry Tax Review') makes a number of recommendations on policies that could affect the housing market.
- The government responds to the AFTS review findings with a report 'Stronger, Fairer, Simpler: A Tax Plan for our Future'.
- 2011: February - New housing loans approved by Australian banks fall 5.6 per cent to a 10-year low in February.
- 2012: October - The RBA cuts interest rates to 3.25%.
- 2012: December - The RBA cuts interest rates to 3.00%.
- 2013: April - Glenn Stevens is re-appointed as RBA Governor for 3 more years.
- 2013: May - The RBA cuts interest rates to 2.75%.
- 2013: August - The RBA cuts interest rates to 2.50%.
- 2013 - November - Statistics released by the Australian Prudential Regulation Authority revealed that the total amount of residential term loans to households held by all ADIs (authorised deposit taking institutions) was $1.15 trillion. This was an increase of 1.7% on 30 June 2013 and an increase of 7.5 on September 2012. Furthermore, investment loans accounted for 33.1 per cent of the loans. Major banks held $933 billion of these loans.
- 2014 - January 1 - RP Data reveals that national residential prices increased by 9.8% in 2013, with Sydney increasing by 15.2%.
- 2014 - January 13 - Housing Finance statistics released by the Australian Bureau of Statistics shows the value of outstanding home loans financed by the ADIs was $1.27 trillion. $849 billion of that amount was for owner occupied housing and $419 billion was for investment housing loans.
- 2014 - Data released by RP Data, APM, Residex and ABS in 2014 showed that Australian house prices continued to rise strongly throughout 2013 and 2014.
- 2015 - The International Monetary Fund sends an economic team to Australia to examine "the risks posed by property speculation and record-high household debt as part of a broad health check-up of the sagging domestic economy."
- 2015 - The head of the Federal Treasury Department, and the Federal government's most senior economic adviser, John Fraser publicly warned that Sydney and more expensive parts of Melbourne were experiencing a bubble. This was disputed by members of the government including the Prime Minister and Assistant Treasurer.
- 2015 - October - Macquarie Bank, a major Australian investment bank forecasted an end to property prices with "quarter-on-quarter house prices to fall from the March 2016 quarter before beginning to recover from June 2017, with a 7.5 per cent fall from peak to trough". Westpac Bank independently raised the rates on its standard variable mortgage by 20 basis points against the Australian Reserve Bank. This was the first rate rise by an Australian bank in five years.
- 2016 - May - From July 1, "Foreign buyers will have to provide citizenship and visa details, as well as Foreign Investment Review Board clearance, through the stamp duty process." "The ATO will match data to ensure foreign buyers have paid a $5000 fee for any property sold for less than $1 million, and $10,000 for properties over $1 million." 
- 2016 - June - "In NSW, foreign buyers will be hit with a 4 per cent stamp duty surcharge from June 21 and 0.75 per cent land tax surcharge starting in 2017. Victoria will raise its existing 3 per cent stamp duty surcharge and 0.5 per cent land tax surcharge to 7 per cent and 1.5 per cent respectively on July 1, while Queensland's 3 per cent stamp duty surcharge kicks in on October 1." 
- 2016 - August 3 - The Official cash rate drops to 1.5%, the lowest cash rate on record. The cash rate remains at 1.5% until April 2017.
- 2017 - March - The four major banks, NAB, Westpac, ANZ and Commonwealth Bank increase home loan rates despite Reserve bank rates citing the rising costs and regulatory responsibilities. These four banks controls more than 80 per cent of the $1.6 trillion mortgage market. Owner-occupier customers repaying principal and interest experiences the smallest rise while investors with interest-only loans get the largest hike. The changes effective in April–May.
- 2017 - April - The governor of the Reserve Bank of Australia Phil Lowe states that increasing debt and rising house prices were risking the future health of the Australian economy. He noted that slow wage growth was making it harder for people to pay down their debt and attacked banks for lending to people with too little income buffer after interest.
- 2017 - 14 December - Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry established.
- 2018 - 13 March - hearings into the Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry begin.
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