SUMMARY
Yes. Vienna is running short of new apartments, and the squeeze is most obvious in newly built rental housing rather than across every part of the city’s housing stock.
The exact completion count is less important than it first appears. EHL/BUWOG and OTTO use different project universes, but both show Vienna well below the previous building cycle and both expect supply to weaken again after the current year.
The deeper problem is the pipeline behind today’s completions. Vienna permitted roughly 21,400 homes in 2019 and only 5,772 in 2025, so many apartments finishing today still belong to an older development cycle that is no longer being replaced at anything close to the same pace.
The private rental market is where the numbers become unusually thin. EHL says free-financed rental completions have fallen by more than 60% from the 2022 boom, while OTTO expects commercially developed rental supply to fall to roughly 260 apartments next year.
Vienna’s population growth is not explosive, but it is large enough to absorb much of the reduced construction volume. Annual growth in the mid-five figures translates into roughly 8,000 to 9,000 average-household equivalents, which is already close to the lower completion forecasts before replacement needs or falling household size are considered.
Vienna’s huge municipal and cooperative housing stock protects many existing tenants, but it does not automatically help someone searching for an apartment today. Availability depends on turnover, and tenants facing much higher rents after moving have a strong reason to stay put.
The shortage is also geographical. Much of the remaining construction is concentrated in large development zones in Floridsdorf and Donaustadt, while new supply in dense inner and western districts is much weaker, so citywide completion totals overstate the choice available in many neighbourhoods.
The construction collapse was mainly economic rather than demand-driven. Higher financing costs, tighter lending standards and still-elevated building costs made many projects difficult to finance at rents or sale prices households could actually support.
Developers are starting projects again and national permit data have improved, but that does not rescue current availability. A project restarted today is mostly relevant to the 2028 or 2029 housing market, not to somebody looking for a flat this year.
The awkward part is that Vienna’s development market can recover before its apartment shortage does. The weakest completion years are still moving through the pipeline, while the city’s subsidised housing offensive and renewed private starts need several years to turn into finished homes.
So Vienna is not literally about to stop producing new apartments. But it has moved from a building boom into a period where new supply is only narrowly matching underlying housing needs, with almost no buffer and an especially weak pipeline for newly available rental homes.
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Is Vienna actually running out of new apartments?
Yes, Vienna is running short of new apartments, with annual completions far below the boom years and the pipeline still getting thinner.
The latest market reports disagree on the exact number because they track projects differently, but they agree on the direction. EHL and BUWOG expect around 8,630 completions this year, versus more than 14,000 in 2023. Their forecast then falls to 6,911 next year. OTTO Immobilien uses a broader project database and estimates 12,092 completions this year and 9,608 next year.
That is a big gap. It would be a serious contradiction if both reports counted exactly the same universe of projects, but they do not. Even OTTO's higher estimate leaves Vienna well below the previous building cycle, while EHL says completion volumes have fallen to their lowest level in years.
The bigger warning sits further upstream. Vienna issued permits for roughly 21,400 homes in 2019. By 2025, that had fallen to 5,772. The apartments still being delivered today include projects approved and financed before development conditions deteriorated, so completions have held up better than the pipeline behind them.
Vienna still builds thousands of homes a year, but the comfortable supply created during the previous boom has largely disappeared.
| Vienna housing indicator | Earlier level | Current / forecast level | What changed |
|---|---|---|---|
| EHL/BUWOG completions | >14,000 in 2023 | 8,630 this year | Down roughly 40% |
| EHL/BUWOG next-year forecast | — | 6,911 | Further decline expected |
| OTTO completions | 11,016 in 2025 | 12,092 this year | Temporary rebound in broader series |
| OTTO next-year forecast | — | 9,608 | Supply falls again |
| Vienna permits | ~21,400 in 2019 | 5,772 in 2025 | Down about 73% |
Why do Vienna new-build estimates vary by thousands of apartments?
Vienna's housing shortage looks very different depending on the dataset, so the trend is more useful than any single completion number.
EHL and BUWOG expect around 8,630 completions, while OTTO Immobilien's latest estimate is 12,092. A difference of more than 3,000 apartments would be a serious contradiction if both reports counted exactly the same universe of projects.
They do not. Private researchers use different databases, minimum project sizes, completion definitions and tenure classifications. Official Statistics Austria figures introduce further distinctions between homes in newly built structures and homes created through additions, conversions or other construction.
Vienna's unusual housing system makes comparisons harder because market-rate condominiums, privately financed rental apartments, subsidised rentals, cooperative housing and municipal housing all sit alongside one another.
Rather than choosing whichever forecast supports the strongest headline, we looked for indicators that move together across sources. Permits have collapsed. EHL says free-financed rental completions are more than 60% below their 2022 boom level. OTTO expects commercial rental development to fall to a tiny fraction of total completions next year. Vienna's population is still growing.
Those findings make the supply squeeze much harder to dismiss than the disagreement over the exact completion count.
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How badly have Vienna building permits collapsed?
Vienna's permit pipeline has fallen much harder than apartment completions: approvals dropped from roughly 21,400 homes in 2019 to just 5,772 in 2025.
That is a decline of about 73%. It also explains why looking only at apartments completed today gives us a late view of the downturn.
Residential development moves slowly. A home finished this year may have been designed, permitted and financed several years earlier. Vienna could therefore keep delivering apartments from the old pipeline even after developers had stopped replacing those projects with new ones.
That cushion has now largely been used.
There is one encouraging development. Statistics Austria reported 31,979 dwellings permitted in new residential buildings across Austria in 2025, up 7.1% from a year earlier. Total permitted dwellings also increased, and the national figures continued improving in the first quarter of 2026.
So the broader Austrian construction cycle may have bottomed. For Vienna, however, a recovery in approvals now mainly helps supply several years from now.
| Permit indicator | Earlier level | Latest level | Change |
|---|---|---|---|
| Vienna residential permits | ~21,400 in 2019 | 5,772 in 2025 | about -73% |
| Austria: permits in new residential buildings | — | 31,979 in 2025 | +7.1% YoY |
| Austria: all permitted dwellings | — | 47,636 in 2025 | +3.7% YoY |
| Austria: Q1 permitted dwellings | — | 11,804 in 2026 | +7.7% YoY |
Has Vienna already burned through the apartments left from the construction boom?
Yes, Vienna has largely consumed the backlog of projects that kept completions high after developers stopped starting enough new ones.
The timing is easy to miss. EHL's figures show around 14,000-plus completions in 2023, even though financing conditions had already deteriorated sharply. Those apartments mostly came from projects launched during the earlier cheap-money period.
Then the numbers started falling. EHL counted 9,688 completions in 2025, down 14% in one year and 32% from 2023. Its current forecast falls again to around 8,630 this year and 6,911 next year.
BUWOG managing director Andreas Holler described the old production overhang as already used up when the latest Vienna Residential Market Report was released.
That is why the shortage feels more visible these days. For a while, weak project starts were hidden behind construction already underway. Vienna has much less of that protection left.
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Is Vienna's real shortage mostly about new rental apartments?
Yes, the sharpest shortage in Vienna is in new rental housing, where private development has fallen much faster than overall construction.
EHL counted only 2,087 newly built free-financed rental apartments in 2025, almost half the level of the previous year. Subsidised rental completions also fell, reaching 2,894, roughly 20% lower.
Its Q1 market update says free-financed rental output is now more than 60% below the 2022 boom level.
OTTO's newest numbers make the forward pipeline even more striking. Commercially developed rental apartments represented about 18% of Vienna completions in 2025 and are expected to make up around 21% this year. Next year, OTTO expects that share to fall to roughly 3%, or about 260 apartments.
Vienna has around three-quarters of a million renter households. Against that base, 260 commercially built rental apartments would barely register.
Existing rentals, municipal housing and cooperative apartments will obviously continue to exist and turn over. Still, the source of supply that normally expands the open rental market is becoming exceptionally small.
| New rental supply | 2025 | This year | Next year |
|---|---|---|---|
| Free-financed rental completions, EHL | 2,087 | Very low | Further pressure expected |
| Subsidised rental completions, EHL | 2,894 | Falling | Weak pipeline |
| Commercial rental share, OTTO | ~18% | ~21% | ~3% |
| Commercial rental units, OTTO | — | — | ~260 |
Is Vienna still growing fast enough to need all these apartments?
Yes, Vienna is still adding enough residents and households to keep pressure on housing supply.
The city's official population projection starts from 2.028 million residents in 2025 and reaches around 2.047 million in 2026, 2.065 million in 2027 and 2.081 million in 2028.
That means annual growth of roughly 19,000 people, then 17,400, then another 16,000. Migration accounts for most of the increase.
Population growth is only part of the demand story. Vienna households are small, averaging roughly 2.04 people in EHL's latest market data. More divorces, young adults moving out, ageing residents living alone and other shifts in household structure can create additional apartment demand even when population growth slows.
If we convert projected population growth into rough household equivalents, another 17,400 residents corresponds to around 8,500 average Vienna households. That number sits surprisingly close to the lower forecasts for annual apartment completions.
Vienna does not have much spare capacity. A construction year that looks respectable in isolation can still be weak once we compare it with household formation.
| Vienna population | Residents / annual change |
|---|---|
| 2025 population | 2.028 million |
| 2026 population | 2.047 million |
| Growth during 2025 | ~19,150 |
| Growth during 2026 | ~17,410 |
| Growth during 2027 | ~16,010 |
| Average household size | ~2.04 people |
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Isn't Vienna building roughly enough apartments for its population growth?
Only barely, and that leaves almost no margin for error.
At roughly 2.04 people per household, population growth of around 17,400 people translates into about 8,500 average household equivalents. Depending on which completion dataset we use, Vienna may deliver roughly 8,600 to 12,100 apartments this year.
At first glance, those numbers look fairly well matched.
The problem is that one completed apartment does not equal one extra usable home for a newly formed household. Some construction replaces existing units. Some apartments are aimed at buyers while the tightest demand is in rental housing. New supply is heavily concentrated in certain outer districts. And household sizes can keep falling even if population growth slows.
Most importantly, merely matching one year's additional demand does nothing to rebuild the supply lost during several weak development years.
So Vienna looks closer to a minimum-supply year than a comfortable building year.
Can't Vienna's huge social-housing sector absorb the shortage?
Vienna's social-housing system softens the shortage enormously, but it cannot create enough vacant apartments for every new household looking today.
EHL and BUWOG count roughly 974,600 main-residence households in the city. Around 739,700 are renters. Municipal housing accounts for roughly 203,000 units and cooperative housing for another 203,000.
Together, those two segments make up about 55% of Vienna's occupied rental stock.
That gives Vienna a major advantage over cities where nearly every renter is exposed to the open market. Hundreds of thousands of households have some protection from rapidly changing market rents.
But most of those apartments already have people living in them. A municipal flat occupied for another ten years contributes to Vienna's housing stock without helping someone searching for a home this week.
The same problem appears in cheap older private leases. When moving means paying substantially more, tenants stay longer. EHL says this reduced turnover is already limiting the number of existing apartments returning to the market.
Vienna's social-housing stock protects many residents from the shortage while doing much less to remove the shortage faced by newcomers.
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Will Vienna's 22,000-home housing offensive solve the problem?
Vienna's 22,000-plus subsidised housing programme is big enough to change the medium-term picture, but the apartments arrive too gradually to solve today's squeeze.
The city says around 22,200 subsidised homes are being advanced under its Wohnbau-Offensive 2024+, enough to house more than 45,000 people.
That is a serious programme. It is equivalent to more than two years of Vienna's recent population growth.
The catch is delivery. The 22,200 total includes apartments at different stages of preparation, planning and construction rather than homes becoming available simultaneously.
The city is also starting five development areas in Simmering, Brigittenau and Donaustadt with 4,530 subsidised homes at full build-out. Erzherzog-Karl-Straße accounts for 1,920, Nordwestbahnhof Phase B for 1,300 and Weichseltalgasse for 660. Eibengasse is another major project, with roughly 2,600 homes planned and around two-thirds subsidised.
These projects can materially improve supply. They just will not do it quickly.
| Vienna public housing pipeline | Planned homes |
|---|---|
| Wohnbau-Offensive 2024+ | ~22,200 subsidised homes |
| Intended residents | >45,000 |
| Five newly developing areas | 4,530 subsidised homes |
| Erzherzog-Karl-Straße | 1,920 |
| Nordwestbahnhof Phase B | 1,300 |
| Weichseltalgasse | 660 |
Where are Vienna's remaining new apartments being built?
Vienna's new apartments are increasingly concentrated in large outer-district development zones, especially Donaustadt and Floridsdorf.
EHL's latest market update says the limited new supply is clustering particularly in the 21st and 22nd districts. Developers remain much more hesitant about small infill projects in established neighbourhoods.
That changes what “8,000 new apartments in Vienna” means for an actual renter or buyer.
Someone searching in Neubau, Josefstadt, Wieden or another dense inner district cannot treat a new apartment at the edge of Donaustadt as an identical substitute. Price, commute, schools, neighbourhood and access to existing social networks all differ.
The pattern also tells us something important about Vienna's supposed land shortage. The city still has room for major housing development. Producing enough homes is much harder where land is fragmented, expensive and already heavily built up.
In several inner and western Gründerzeit districts, EHL describes new construction as particularly weak even while housing demand remains strong.
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Why did Vienna developers stop building so many apartments?
Vienna developers pulled back because higher interest rates, expensive construction and weaker project economics hit at almost the same time.
The shift in financing was brutal. The ECB tightening cycle took interest rates from near zero to 4.5%, and Austrian real-estate lending dropped sharply afterward.
Austria also introduced tighter mortgage standards through KIM-V, including reference limits around 90% loan-to-value, repayments of roughly 40% of net household income and loan maturities of up to 35 years. KIM-V formally expired in 2025, but regulators kept similar benchmarks as supervisory guidance.
At the same time, construction remained expensive. Statistics Austria recorded another 2.3% increase in residential construction costs during 2025, and its index was still more than 5% above the previous year's level by mid-2026.
One extreme Vienna project shows what this combination can do. Austria's Court of Audit found that projected construction costs for VIENNA TWENTYTWO increased from €212.55 million in 2018 to €412.21 million by 2024. Projected financing costs jumped from €4.99 million to €36.66 million. The project had its own complications, so we should not treat those increases as typical, but they show how quickly development economics can break when delays, rates and building costs compound.
Demand for Vienna housing never vanished. The difficult part was building new apartments at a cost that buyers, tenants and investors could support.
Are Vienna developers finally starting projects again?
Yes, Vienna development is beginning to recover, although today's restart will mainly affect apartment supply several years from now.
BUWOG has resumed large project starts after roughly two years of restraint. Its investment push initially covered more than 1,000 apartments across Vienna, Vösendorf and Salzburg, and the company later reported seven Austrian construction starts totalling 1,516 homes.
Buyers have returned as well. OTTO's latest Vienna report says transaction volume for condominiums reached €1.62 billion in the first half of 2026, only 8% below the record first half of 2022.
Prices also give developers a better backdrop than they had during the downturn. OTTO puts existing Vienna apartments at an average €4,645 per square metre and first-occupancy homes at €7,395. Existing-home prices are rising again, while new-build prices appear to have stabilised after previous declines.
National permit data have also turned upward.
We can see the beginning of another development cycle. The frustrating part for apartment hunters is the lag: projects financed and started now are much more relevant to 2028 or 2029 than to current availability.
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Could Vienna's apartment shortage get worse next year?
Yes, Vienna's new-apartment shortage can still get worse before it improves, especially in the private rental market.
EHL and BUWOG forecast total completions falling from around 8,630 this year to 6,911 next year. OTTO's broader dataset is less bearish, but it also expects a decline, from 12,092 to 9,608.
As seen above, the exact totals depend on methodology. The direction does not.
The most worrying number comes from the composition of those completions. OTTO expects commercially developed rental housing to fall to roughly 260 units next year, around 3% of total completions.
Meanwhile, numerous rental projects remain postponed or still lack firm completion dates. OTTO explicitly identifies weak commercial rental construction as the biggest challenge in its latest Vienna report.
The strange result is that the development market can improve while the housing shortage gets worse. New starts are beginning to return, but next year's completed apartments were mostly determined by decisions made during the downturn.
Are Vienna rents already reacting to the lack of new apartments?
Yes, Vienna rents are already showing the pressure from scarce new supply, particularly when households need a newly available market-rate apartment.
EHL's investment-apartment research put average first-occupancy investment rents at €13.90 per square metre in 2023, €14.87 in 2024 and close to €16 in its 2025 projection. Its more recent district research shows achievable first-rental levels around €19-€25 per square metre in several stronger locations.
The citywide market is too regulated and fragmented for one asking-rent figure to describe every Viennese tenant. Municipal, cooperative, regulated old-building and freely priced new-build apartments operate under very different economics.
Still, the behavioural evidence is hard to miss. EHL says fewer existing apartments are coming back onto the market because tenants facing substantially higher rents after moving increasingly stay where they are.
That creates a nasty loop. Fewer new rentals are built, existing tenants move less often, fewer older units become available, and competition for whatever does reach the market becomes stronger.
The shortage is therefore showing up through both construction and turnover.
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So, is Vienna running out of new apartments?
Mostly yes. Vienna has a real new-apartment shortage, and the private rental pipeline is the weakest part of it.
Building permits fell about 73% from their 2019 level to 2025. EHL's completion figures are roughly 40% below 2023 and point lower again next year. Its free-financed rental output has fallen more than 60% from the 2022 boom. OTTO's newest analysis expects only around 260 commercially developed rental apartments next year.
Demand has held up at the same time. Vienna has more than two million residents, official projections still show annual population gains in the mid-five figures, and smaller households create additional demand beyond simple population growth.
There are good reasons to think this eventually improves. Developers have started launching projects again, apartment transactions are recovering, national permit numbers have turned upward and Vienna has more than 22,000 subsidised homes moving through its housing programme.
But those projects cannot refill the market immediately.
So “running out” is slightly dramatic if it means Vienna will suddenly stop having new apartments. As a description of what apartment hunters increasingly face, though, it is close to the truth. Vienna has moved from a building boom into a period where new supply barely keeps pace with underlying housing needs, and the pipeline is especially thin exactly where pressure is strongest: newly available rental apartments. The recovery has started on paper and on construction sites, but for now the shortage is still working its way through the system.
OUR METHODOLOGY
This analysis tests whether Vienna is genuinely running short of new apartments by looking across the full housing-development chain rather than relying on one completion statistic. We compare current completions with the permit pipeline behind them, the composition and location of new supply, population and household demand, turnover of existing housing, rental-market pressure, development economics, and the timing of future public and private construction.
We do not force EHL/BUWOG and OTTO Immobilien into one artificial completion number. Their project databases, minimum project sizes, tenure classifications and completion definitions differ, so we use the separate series to test whether the same direction appears across independent datasets.
We treat permits and project starts as forward-looking indicators, completions as evidence of what is actually reaching the market, and rents and turnover as evidence of how households are experiencing the balance of supply and demand. That sequencing is important because apartments completed today can come from projects financed several years earlier.
On the demand side, we use Vienna's official population projections and average household size to translate population growth into a rough housing-demand scale. This is a benchmark rather than a precise forecast, and it is used to test whether current construction leaves a substantial buffer or only a narrow margin.
We also separate housing stock from housing availability. Vienna's municipal, cooperative and regulated sectors are central to the market, but an occupied apartment is not the same thing as a home available to someone searching today, so turnover is considered alongside the size of the existing stock.
Future public and private projects are treated as evidence about the direction of the next development cycle, not as homes already available. That applies both to Vienna's Wohnbau-Offensive 2024+ and to the renewed private construction starts reported by BUWOG.
Key sources used for this analysis include: EHL/BUWOG's First Vienna Residential Market Report 2026, EHL's Vienna Residential Market Update Q1 2026, EHL's 2025 review and 2026 outlook, OTTO Immobilien's Vienna Residential Market Report 2026, Statistics Austria's building-permit statistics, the City of Vienna's population projection, Wiener Wohnen on the municipal housing stock, the City of Vienna on the Wohnbau-Offensive 2024+ and new development areas, Austria's Financial Market Authority on residential real-estate lending benchmarks, the ECB's official interest-rate series, Statistics Austria's Construction Cost Index, the Austrian Court of Audit on VIENNA TWENTYTWO, and BUWOG's 2026 construction programme.
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