$40 Billion US Tech Investment: What It Means for Portugal’s Property Market

The $40 Billion US Tech Investment: What’s Been Announced

On Tuesday, 21 July 2026, at Lisbon’s Oceanarium, an official launch ceremony took place for Google’s Nuvem transatlantic submarine cable system.

Google first announced the Nuvem project back in 2023, describing it as a new transatlantic submarine cable system that would connect Portugal, the United States, and Bermuda.

The Nuvem cable system spans around 7,000 km (4,350 miles), with 16 fibre pairs and a total design capacity of roughly 384 terabits per second.

At the ceremony, the US ambassador, John Arrigo, estimated that Portugal would gain more than $40 billion (€34.68 billion) in American technology investment by 2031.

This level of upcoming investment would make Portugal a top destination for American AI infrastructure spending in all of Europe.

Besides the cable project, Portugal has attracted many data center developments. As of 2026, there are over 2.6 GW (gigawatts) of data center capacity in development, with the biggest project in the south of Lisbon, the 1.2 GW Start Campus in Sines.

The 1.2 GW Start Campus is backed by the US investment firm Davidson Kempner and is one of the biggest infrastructure undertakings of its time across the entire continent. To find out more, check our article on Portugal’s data center boom.

That being said, the United States already has a major economic presence in Portugal. The US ranks as the 3rd biggest source of foreign investment in Portugal, holding almost $20 billion (€17.3 billion) in stock across major industries such as tourism, agriculture, energy, and AI.

Why Tech Investment Moves Portugal's Property Market

These infrastructure announcements can slowly affect Portugal’s house prices, job opportunities, and rental demand.

Data centers alone employ fewer people than manufacturing factories. However, the ecosystem around them is expected to change, especially when it comes to energy consumption, construction demand, and maintenance.

Data centers can bring and hire well-paid mobile professionals with skills in engineering, cloud services, cybersecurity, networking, database administration, and project management. These workers need homes, which often start with a place to rent and then buy.

Their presence can support the demand for quality housing, local services, and international schools in Portugal. The country has already experienced this spike in demand in the capital city. Lisbon’s rise as a European startup and tech hub is proof of that.

Which Areas Would Have the Biggest Impact

This US tech investment in Portugal is mostly focused around Lisbon, the Setúbal–Sines Corridor, and Porto.

Most regional projects are near Lisbon and its metropolitan area. To the south, the Setúbal and Sines corridor stands out as a base for the Start Campus project, which could cause a rise in housing demand in nearby towns on the Tróia coast and in the Alentejo.

Porto is a value alternative to Lisbon with an increasing tech scene. The Porto real estate market has already experienced a rise in property values driven by the supply shortages.

What this means for buyers

For buyers, this investment could bring more well-paid jobs in Lisbon, Sines, and the Porto area. Although data centers don’t employ a large number of people, they pull engineers, cloud specialists, energy and construction workers around them.

What this means for sellers

For sellers, this investment can bring a bigger pool of international buyers with higher salaries to be looking for property in Lisbon, Sines, and Porto. The demand is likely to increase, mainly for newly-built properties near international schools, rather than a renovation project.

Goldcrest: How We Can Help You 

Goldcrest is the first buyer’s agent in Portugal. We provide expert, impartial advice on real estate investments and how to buy property in Portugal. From scouting out the perfect property through to property acquisition, we have you covered throughout the process. 

Unlike traditional real estate agents in Portugal who represent the seller, we are dedicated exclusively to protecting the buyer’s interests. 

If you are looking to purchase property in Portugal, don’t hesitate to get in touch. Our team of skilled experts is available to solve all your real estate doubts, helping you with the property search and offering insightful expertise and strategic advice. 

Why choose Goldcrest?

• Local knowledge: With offices located across Portugal, our presence nationwide allows us to assist you personally across the country.
• Independent service: As an independent buying agent, we do not represent any development or project. Our service is entirely tailored toward each individual client, providing you with everything you need to secure the perfect property at the best possible price.
• Streamlined process: Our real estate agents speak English and Portuguese, and our service is completely focused on providing you with a hassle-free buying experience, saving you time. We can also help you buy property remotely.
• Experienced team: Our expert real estate team has a vast local knowledge of the Portuguese property market. We have cutting-edge technology and metasearch tools at your disposal to provide full market coverage, ensuring the best investment choices and negotiated prices.
• Network of partners: We have a close network of partners, including lawyers, property management services, builders, architects, designers, and landscape gardeners, again saving you time and hassle by providing you with trusted experts in their field of work.