War & Property: What the Iran Conflict Means for New Zealand Investors

Should you pause that purchase? Is now the wrong time to invest? Will interest rates spike? These are the right questions to ask — and history, it turns out, provides some genuinely reassuring answers. But it also carries warnings that deserve to be taken seriously.

This article unpacks what is actually happening, what has happened in previous conflicts, and what the evidence says about how wars have historically shaped — or failed to reshape — property markets in countries like New Zealand.

What Is Actually Happening Right Now

The conflict that began on February 28, 2026 — with coordinated US-Israeli strikes on Iranian military infrastructure — has rapidly escalated into a multi-front crisis. Iran responded with waves of ballistic missiles and drones targeting not only Israel and US forces, but Gulf states hosting American bases, including strikes on Dubai, Abu Dhabi, Qatar and Kuwait.

The critical economic flashpoint is the Strait of Hormuz. This narrow 33-kilometre-wide waterway at the entrance to the Persian Gulf is the single most important oil chokepoint on Earth. Around 20% of the world's oil supply transits through it daily. Iran announced its closure, and while vessel tracking has shown reduced movement rather than a full shutdown, the disruption has been enough to trigger significant market reactions.

Brent crude, which was trading around US$70 a barrel before the conflict, surged sharply in the opening days — with some analysts citing prices approaching US$93 a barrel within ten days of the first strikes, and Westpac economists modelling scenarios where oil could reach anywhere from US$100 to US$185 per barrel depending on the conflict's duration and scope.

“A spike in petrol prices acts like a tax on the consumer. Unfortunately, things are likely to get worse before they get better. — Jarrod Kerr, Chief Economist, Kiwibank”

For New Zealand, the Ministry of Foreign Affairs and Trade noted that while our direct trade with Middle Eastern countries represents just 3% of total exports, the indirect impact via global energy markets and supply chains is far more significant. The AA's Terry Collins has warned that every US$10 rise per barrel of oil adds around 10 cents per litre at the pump — and that New Zealanders should prepare for "week after week" of fuel hikes.

The Property Channel: How Wars Actually Affect Real Estate

Wars affect property markets through several distinct transmission channels. Understanding which ones apply to New Zealand is the key to interpreting the current situation clearly.

The Oil-Inflation-Interest Rate Chain

The most direct mechanism runs from oil prices through to inflation and then to interest rates — which directly determine mortgage costs. When oil prices rise sharply, consumer prices follow. Central banks face an uncomfortable dilemma: the same shock that is inflationary also weakens economic growth, making any rate response politically and economically fraught.

Westpac's New Zealand and Australian economics teams modelled three scenarios. Under the narrowest scenario — disruption to Iranian oil supply alone — New Zealand's Consumer Price Index could rise by around one percentage point, with GDP roughly 0.4 percentage points lower. A one-month Strait of Hormuz closure lifts CPI by around 1.6 percentage points. A three-month disruption could push CPI up by as much as three percentage points.

With annual inflation already running at 3.1% at the end of 2025, the Reserve Bank of New Zealand has limited tolerance for additional inflationary surprises. ANZ's senior economist Miles Workman warns that a sustained 10% rise in oil prices could add 0.2 percentage points to quarterly inflation. BNZ's head of research Stephen Toplis called the war's effects "the worst of all worlds for the average New Zealander."

The Consumer Confidence Effect

The second — and arguably more powerful — channel is psychological. Kiwibank's Kerr pointed out that what matters in the near term may be less about actual economic damage and more about how the conflict affects confidence. He drew a direct parallel with the tariff shock of 2025: even though US tariffs didn't devastate New Zealand's export earnings, the uncertainty contributed to a second-quarter economic contraction that delayed the country's recovery.

If buyers pause, transaction volumes slow. If sellers hold off, supply tightens. A period of hesitation can be self-fulfilling in the short term — not because fundamentals have changed, but because both sides of the market decide to wait.

The Safe Haven Effect

The third channel runs in an unexpected direction. Geopolitical instability in one part of the world consistently drives capital toward stable, rule-of-law property markets elsewhere. This is not theory — it is one of the most well-documented patterns in international real estate.

Lessons From History: What the Data Shows

The most striking historical finding for property investors is this: across more than 130 years of US property data, not a single war fought on foreign soil has produced a sustained decline in home values in the countries fighting from a distance. The only significant property crash since the Great Depression was the 2008 Global Financial Crisis — caused by mortgage fraud and over-leveraged lending, not by war.

RBC Wealth Management's analysis of 20 major military conflicts since World War II found the S&P 500 fell an average of 6% from onset to trough — and recovered in an average of just 28 days. Critically, the duration of a conflict had little bearing on long-term market performance. The exceptions — the 1973 Yom Kippur War and the 1990 Gulf War — were both driven by oil shocks, not by conflict itself.

The 1973 experience is instructive for another reason. The Arab oil embargo drove massive petrodollar wealth accumulation in the Gulf, and that capital needed somewhere to go. Parts of it flowed into Western property markets — most famously into London's prime real estate. Scholars have documented a direct correlation between Middle Eastern crises and price surges in London property markets as capital fled instability.

Dubai provides the most vivid current example of both dynamics at play simultaneously. The emirate recorded nearly AED 917 billion in real estate transactions in 2025 — the highest in its history — as USD $63 billion in wealth poured in from conflict-affected jurisdictions. Yet with Iranian missiles now striking UAE infrastructure including Dubai International Airport, that same safe-haven narrative is being stress-tested in real time.

What This Means for New Zealand Property Specifically

New Zealand sits at a particular intersection of risks and advantages in the current environment.

On the risk side: New Zealand is more exposed to oil price shocks than Australia, because unlike its trans-Tasman neighbour, it has no significant domestic oil or gas exports to offset rising import costs. The country gets most of its fuel from Singapore — and Singapore sources its crude from the Middle East, meaning disruption to Gulf shipping flows directly through to Kiwi petrol forecourts.

New Zealand Ministry of Foreign Affairs and Trade has confirmed that the conflict's most significant channel of impact is via global energy markets and supply chains, not direct trade. This is actually somewhat reassuring: it means the mechanism is a financial one, not a structural one, and financial disruptions — as history consistently shows — tend to be temporary.

On the advantage side: New Zealand's geographic remoteness is a genuine asset during global instability. Stable rule of law, transparent property rights, a resilient democratic system and distance from conflict zones all make New Zealand property attractive to international capital seeking a safe harbour.

The Reserve Bank will almost certainly look through any short-term supply-side inflation shock. As Westpac's Kelly Eckhold noted, "the typical playbook is to downplay the short-term impact on inflation unless it starts to flow through to inflation expectations." There is no immediate threat of RBNZ rate hikes — in fact, with growth headwinds mounting, the central bank is more likely to err toward caution on any tightening.

Scenario Planning for Investors

Rather than trying to predict what will happen — a fool's errand in any geopolitical situation — it is more useful to think in scenarios and understand the property implications of each.

The consensus among New Zealand economists — including those at ANZ, Westpac, Kiwibank, and BNZ — is that Scenario A or B is the most likely outcome, with Scenario C a genuine risk if the Strait of Hormuz remains disrupted for an extended period. No mainstream economist is currently forecasting a property market collapse.

The Investor Mindset: What the Best Do Differently

Mike Simonsen, chief economist at Compass, articulated the principle clearly: the question investors should ask is not "what will the war do to the market?" but rather "do I love this property, can I afford it, and does it work for me at today's numbers?" If yes, geopolitical uncertainty is not a reason to stop.

Investors who paused during the Gulf War, post-9/11, during the Ukraine invasion, or during COVID's early weeks and waited for "clarity" consistently underperformed those who evaluated the fundamentals and acted on them. The market rarely signals the all-clear — it simply moves on while those waiting for certainty watch from the sidelines.

The 1970s offer a particularly instructive parallel. The oil shock of 1973 drove inflation to historically high levels and created significant economic pain. But it also created one of the most powerful property booms in modern history. Americans, watching the purchasing power of their dollars erode, rushed into real estate as a hard asset that could preserve wealth. Home prices across the US surged throughout the decade.

New Zealand is not the US of the 1970s, and today's situation has meaningful differences. But the underlying logic — that hard assets with intrinsic value and income-generating capacity tend to outperform financial assets in inflationary environments — remains as sound today as it was fifty years ago.

What Smart NZ Property Investors Are Doing Right Now

• Reviewing their mortgage structures — locking in if rates look set to rise, floating if the conflict is likely short
• Stress-testing cashflow against a scenario of 0.5–1% higher mortgage rates for 12 months
• Watching the OCR path closely — the RBNZ's language on inflation expectations will be the key signal
• Not making panicked decisions based on daily news — geopolitical events almost always look worse in the moment than in retrospect
• Keeping powder dry if possible — if Scenario C materialises, there may be selective buying opportunities in softened markets
• Focusing on properties with strong rental yields — inflation environments reward income-generating assets
• Monitoring construction costs — supply chain disruption could affect build costs and slow new supply, supporting existing property values

The Bottom Line

The Iran conflict is a serious geopolitical event with real economic consequences for New Zealand. Higher petrol prices, modest inflationary pressure, and a potential short-term dampening of consumer confidence are all genuine near-term risks. New Zealand economists have been clear-eyed about this.

But the weight of historical evidence, spanning more than a century of wars large and small, is equally clear: property markets in stable, geographically distant nations have consistently proven resilient to foreign conflicts. The transmission mechanisms — inflation, interest rates, and sentiment — are real but generally manageable, and they tend to be temporary unless conflicts escalate dramatically and persist for many months.

New Zealand property's long-run fundamentals — persistent undersupply, strong net migration, a recovering economy, and a falling OCR cycle that was already underway — have not changed because of what is happening in the Persian Gulf. The risk is real. The panic is not warranted.

As Westpac's Kelly Eckhold put it, the best-case scenario sees the conflict resolved quickly, allowing energy prices and risk premiums to fall back. Even in more adverse scenarios, New Zealand's property market has weathered oil shocks, recessions, pandemics and global crises before — and come out the other side.

History doesn't guarantee the future. But it does offer a reasonable working guide. And the guide says: don't panic, stay informed, stress-test your numbers, and keep your eyes on the long game.