How Long Will It Take and How Much Will It Cost to Rebuild Gaza?

A young Palestinian girl walks along a street on a misty morning in Khan Younis in the northern Gaza Strip on January 17, 2025, as Israel's security cabinet is expected to approve a Gaza ceasefire and hostage release deal. (AFP)
A young Palestinian girl walks along a street on a misty morning in Khan Younis in the northern Gaza Strip on January 17, 2025, as Israel's security cabinet is expected to approve a Gaza ceasefire and hostage release deal. (AFP)
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How Long Will It Take and How Much Will It Cost to Rebuild Gaza?

A young Palestinian girl walks along a street on a misty morning in Khan Younis in the northern Gaza Strip on January 17, 2025, as Israel's security cabinet is expected to approve a Gaza ceasefire and hostage release deal. (AFP)
A young Palestinian girl walks along a street on a misty morning in Khan Younis in the northern Gaza Strip on January 17, 2025, as Israel's security cabinet is expected to approve a Gaza ceasefire and hostage release deal. (AFP)

Palestinians in the Gaza Strip are eager to leave miserable tent camps and return to their homes if a long-awaited ceasefire agreement halts the Israel-Hamas war, but many will find there is nothing left and no way to rebuild.

Israeli bombardment and ground operations have transformed entire neighborhoods in several cities into rubble-strewn wastelands, with blackened shells of buildings and mounds of debris stretching away in all directions. Major roads have been plowed up. Critical water and electricity infrastructure is in ruins. Most hospitals no longer function.

And it's unclear when — or even if — much will be rebuilt.

The agreement for a phased ceasefire and the release of hostages held by Hamas-led fighters does not say who will govern Gaza after the war, or whether Israel and Egypt will lift a blockade limiting the movement of people and goods that they imposed when Hamas seized power in 2007.

The United Nations says that it could take more than 350 years to rebuild if the blockade remains.

Two-thirds of all structures destroyed

The full extent of the damage will only be known when the fighting ends and inspectors have full access to the territory. The most heavily destroyed part of Gaza, in the north, has been sealed off and largely depopulated by Israeli forces in an operation that began in early October.

Using satellite data, the United Nations estimated last month that 69% of the structures in Gaza have been damaged or destroyed, including over 245,000 homes. The World Bank estimated $18.5 billion in damage — nearly the combined economic output of the West Bank and Gaza in 2022 — from just the first four months of the war.

Israel blames the destruction on Hamas, which ignited the war with its Oct. 7, 2023, attack into Israel, killing some 1,200 people, mostly civilians, and abducting another 250. Israel's retaliatory offensive has killed over 46,000 Palestinians, more than half of them women and children, according to Gaza's Health Ministry, which does not say how many of the dead were fighters.

Israel says it has killed over 17,000 fighters, without providing evidence. The military has released photos and video footage showing that Hamas built tunnels and rocket launchers in residential areas, and often operated in and around homes, schools and mosques.

Mountains of rubble to be moved

Before anything can be rebuilt, the rubble must be removed — a staggering task in itself.

The UN estimates that the war has littered Gaza with over 50 million tons of rubble — roughly 12 times the size of the Great Pyramid of Giza. With over 100 trucks working full time, it would take over 15 years to clear the rubble away, and there is little open space in the narrow coastal territory that is home to some 2.3 million Palestinians.

Carting the debris away will also be complicated by the fact that it contains huge amounts of unexploded ordnance and other harmful materials, as well as human remains. Gaza's Health Ministry says thousands of people killed in airstrikes are still buried under the rubble.

No plan for the day after

The rubble clearance and eventual rebuilding of homes will require billions of dollars and the ability to bring construction materials and heavy equipment into the territory — neither of which is assured.

The ceasefire agreement calls for a three- to five-year reconstruction project to begin in its final phase, after all the remaining 100 hostages have been released and Israeli troops have withdrawn from the territory.

But getting to that point will require agreement on the second and most difficult phase of the deal, which still must be negotiated.

Even then, the ability to rebuild will depend on the blockade, which critics have long decried as a form of collective punishment. Israel says it is needed to prevent Hamas from rebuilding its military capabilities, noting that cement and metal pipes can also be used for tunnels and rockets.

Israel might be more inclined to lift the blockade if Hamas were no longer in power, but there are no plans for an alternative government.

The United States and much of the international community want a revitalized Palestinian Authority to govern the West Bank and Gaza with the support of Arab countries ahead of eventual statehood. But that's a nonstarter for Israel's government, which is opposed to a Palestinian state and has ruled out any role in Gaza for the Western-backed authority.

International donors are unlikely to invest in an ungoverned territory that has seen five wars in less than two decades, which means the sprawling tent camps along the coast could become a permanent feature of life in Gaza.



Rising Seas and Shifting Sands Attack Ancient Alexandria from Below 

A view of buildings on the corniche in the Mediterranean city of Alexandria, Egypt, April 20, 2025. (Reuters)
A view of buildings on the corniche in the Mediterranean city of Alexandria, Egypt, April 20, 2025. (Reuters)
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Rising Seas and Shifting Sands Attack Ancient Alexandria from Below 

A view of buildings on the corniche in the Mediterranean city of Alexandria, Egypt, April 20, 2025. (Reuters)
A view of buildings on the corniche in the Mediterranean city of Alexandria, Egypt, April 20, 2025. (Reuters)

From her ninth-floor balcony over Alexandria's seafront, Eman Mabrouk looked down at the strip of sand that used to be the wide beach where she played as a child.

"The picture is completely different now," she said. The sea has crept closer, the concrete barriers have got longer and the buildings around her have cracked and shifted.

Every year 40 of them collapse across Egypt's second city, up from one on average a decade ago, a study shows.

The storied settlement that survived everything from bombardment by the British in the 1880s to attacks by crusaders in the 1160s is succumbing to a subtler foe infiltrating its foundations.

The warming waters of the Mediterranean are rising, part of a global phenomenon driven by climate change. In Alexandria, that is leading to coastal erosion and sending saltwater seeping through the sandy substrate, undermining buildings from below, researchers say.

"This is why we see the buildings in Alexandria being eroded from the bottom up," said Essam Heggy, a water scientist at the University of Southern California who co-wrote the study published in February describing a growing crisis in Alexandria and along the whole coast.

The combination of continuous seawater rises, ground subsidence and coastal erosion means Alexandria’s coastline has receded on average 3.5 meters a year over the last 20 years, he told Reuters.

"For many people who see that climatic change is something that will happen in the future and we don’t need to worry about it, it’s actually happening right now, right here," Heggy said.

The situation is alarming enough when set out in the report - "Soaring Building Collapses in Southern Mediterranean Coasts" in the journal "Earth's Future". For Mabrouk, 50, it has been part of day-to-day life for years.

She had to leave her last apartment when the building started moving.

"It eventually got slanted. I mean, after two years, we were all ... leaning," she told Reuters. "If you put something on the table, you would feel like it was rolling."

BARRIERS, BULLDOZERS, CRACKS

Egypt's government has acknowledged the problem and promised action. Submerged breakwaters reduce coastal wave action and truckloads of sand replenish stripped beaches.

Nine concrete sea barriers have been set up "to protect the delta and Alexandria from the impact of rising sea waves," Alexandria's governor, Ahmed Khaled Hassan, said.

The barriers stretch out to sea, piles of striking geometric shapes, their clear curves and lines standing out against the crumbling, flaking apartment blocks on the land.

Authorities are trying to get in ahead of the collapses by demolishing buildings at risk.

Around 7,500 were marked for destruction and 55,000 new housing units will be built, Prime Minister Mostafa Madbouly told a crowd as he stood on one of the concrete barriers on July 14.

"There isn't a day that passes without a partial or complete collapse of at least one building that already had a demolition order," Madbouly said.

Some are hopeful the measures can make a difference.

"There are no dangers now ... They have made their calculations," coffee shop owner Shady Mostafa said as he watched builders working on one of the barriers.

Others are less sure. Alexandria's 70-km (45-mile) long coastal zone was marked down as the most vulnerable in the whole Mediterranean basin in the February report.

Around 2% of the city's housing stock – or about 7,000 buildings – were probably unsafe, it added.

Every day, more people are pouring into the city - Alexandria's population has nearly doubled to about 5.8 million in the last 25 years, swollen by workers and tourists, according to Egypt's statistics agency CAPMAS. Property prices keep going up, despite all the risks, trackers show.

Sea levels are rising across the world, but they are rising faster in the Mediterranean than in many other bodies of water, partly because the relative shallowness of its sea basin means it is warming up faster.

The causes may be global, but the impacts are local, said 26-year-old Alexandria resident Ahmed al-Ashry.

"There's a change in the buildings, there's a change in the streets," he told Reuters.

"Every now and then we try to renovate the buildings, and in less than a month, the renovations start to fall apart. Our neighbors have started saying the same thing, that cracks have started to appear."