Prologis Supports Relay’s UK Growth at West London 2026

Key Points

• Prologis UK has leased the DC5b warehouse at Prologis Park West London to technology-led delivery company Relay.
• The additional facility measures 79,840 sq ft.
• Relay already occupies the 98,122 sq ft DC5a unit at the same logistics park.
• The two facilities give Relay approximately 177,962 sq ft of space at the site.
• Relay will use the additional warehouse capacity to support further growth, improve operational efficiency and enhance customer service.
• The expansion follows increased demand for e-commerce delivery services and the signing of new customer contracts.
• Relay handles more than 200,000 parcels each week across the UK, according to Prologis and related industry reports.
• Prologis Ventures, the investment arm of Prologis, has supported Relay’s growth.
• Jason Pickering, vice-president of capital deployment at Prologis UK, said Relay’s growth reflected the way technology was reshaping last-mile logistics.
• SBH represented Relay, while CBRE, DTRE and Savills represented Prologis.
• A further 57,801 sq ft at Prologis Park West London remains available, according to Estates Gazette and industry coverage.

West London (West London News) August 7, 2026 — Prologis UK has leased the DC5b warehouse at Prologis Park West London to Relay on 4 August 2026, giving the technology-led delivery company additional space as it continues to expand its operations across the UK.

The agreement extends Relay’s existing presence at the logistics park. The business previously established its UK operations at DC5a, a 98,122 sq ft facility at Prologis Park West London. The newly leased DC5b unit adds a further 79,840 sq ft to its footprint.

According to figures reported by BE News and Estates Gazette, Relay will now occupy approximately 177,962 sq ft across the two buildings. CoStar described the transaction as Relay taking a second facility at the site, while Prologis said the additional warehouse would provide capacity for the company’s next stage of growth.

The precise financial terms and length of the lease were not disclosed in the available announcements.

Why is Relay taking additional warehouse space?

The expansion is linked to rising demand for e-commerce delivery services and the securing of new customer contracts. Prologis said Relay had experienced significant growth since establishing its UK operations at DC5a, with the company using the West London location as a base for its delivery network.

Relay is described as a technology-led delivery network focused on last-mile logistics. The company’s model is aimed at supporting online retailers and their customers through delivery services that use technology and localised operating networks.

The additional DC5b facility is expected to give Relay more room to manage its operations as parcel volumes increase. Prologis said the space would help the company support further growth, strengthen operational efficiency and enhance service levels for customers. These objectives were also reflected in coverage by Estates Gazette, which linked the expansion to demand from e-commerce and Relay’s new customer contracts.

Relay now handles more than 200,000 parcels each week across the UK, according to the Prologis announcement and related reporting. The company’s use of the two units is therefore expected to provide a larger operational base for its existing activity rather than representing a completely new market entry.

The available information does not state whether all of the additional warehouse will be used for parcel processing, storage, administration or other operational functions. It also does not confirm whether the expansion will result in a specific number of new jobs.

What did Prologis say about Relay’s growth?

Jason Pickering, vice-president of capital deployment at Prologis UK, said Relay’s development demonstrated the role of technology in changing last-mile logistics.

“Relay’s growth story demonstrates the pace at which technology is reshaping last-mile logistics,” Pickering said, according to Prologis’ announcement.

He added that Relay had expanded rapidly since establishing its operations at Prologis Park West London, secured new contracts and built a platform for further growth.

“Since establishing its operations at Prologis Park West London, the business has expanded rapidly, secured new contracts and built a strong platform for future growth,”

Pickering said.

“We’re delighted to support the next stage of that journey through the leasing of DC5b.”

The statement presents the transaction as an extension of the relationship between Prologis and Relay. Prologis Ventures, the company’s venture capital arm, has also supported Relay. The investment division focuses on companies working in supply chains, logistics and real estate, including businesses developing technology for the logistics sector.

The available announcement does not include a statement from Relay’s management or disclose the company’s projected parcel volumes following the lease.

How much space does Relay now occupy?

Relay’s original unit, DC5a, measures 98,122 sq ft. The new DC5b facility measures 79,840 sq ft. Together, the two buildings provide approximately 177,962 sq ft of warehouse accommodation.

The addition of DC5b represents a substantial increase in Relay’s space at the site. Facilities Management Now described the expansion as the company nearly doubling its warehouse capacity at Prologis Park West London. CoStar similarly reported that Relay would occupy about 178,000 sq ft across two units after the second deal.

The size of the expansion gives an indication of the scale of Relay’s operational growth, although the available reports do not provide a direct comparison between the company’s parcel volumes before and after moving into DC5b.

The lease also highlights the importance of West London as a base for logistics and delivery businesses serving the capital and other parts of the UK. Prologis Park West London offers warehouse accommodation within the wider logistics property market, but the available reports do not provide details of the specific transport routes, vehicle numbers or daily parcel movements connected to Relay’s new unit.

Which agents handled the transaction?

SBH represented Relay in the transaction. CBRE, DTRE and Savills acted for Prologis.

The agency details were reported by BE News and included in Prologis’ announcement. No further information was provided about the negotiations, lease structure or the parties’ respective commercial terms.

The transaction follows other recent activity at Prologis Park West London. Estates Gazette reported that 57,801 sq ft remained vacant at the park after Relay’s expansion. Prologis also said it had recently completed the letting of DC6A to an international logistics and express delivery company from Asia.

The identity of that company was not given in the Prologis announcement cited in the coverage. Separate industry reporting identified the occupier as J&T Express and said the company had taken part of the DC6A building, leaving 57,801 sq ft available in DC6B. That detail was not included in the main Prologis announcement and should therefore be treated as separate industry reporting rather than a confirmed statement from Prologis in the release.

What does the expansion mean for Prologis Park West London?

Relay’s second lease reduces the amount of available warehouse space at the park and adds another occupier operating in the last-mile delivery sector.

The deal comes as logistics property owners continue to serve businesses connected to e-commerce, parcel delivery and supply chain technology. In Relay’s case, the agreement provides an example of a growing delivery company expanding within the same logistics estate rather than moving to a separate location.

For Prologis, retaining Relay at the park allows the company to support an occupier that has grown since taking its first unit. For Relay, remaining at the same site may help it increase capacity while maintaining its existing operational base in West London.

Neither company has announced any change to Relay’s service areas, delivery prices or customer arrangements as a result of the lease. The announcement also does not confirm whether Relay will move all or part of its operations from DC5a to DC5b.

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What is Relay’s wider UK expansion plan?

Relay’s expansion at Prologis Park West London follows earlier investment and growth activity.

EU-Startups reported in February 2025 that Relay had raised €33.4 million in a Series A funding round to scale its delivery network across the UK. The round was led by Plural and included continued participation from Project A and Prologis Ventures. The same report said Relay had raised more than €47.7 million in total funding at that stage and was already operating in major UK cities, including London and Manchester.

Earlier coverage by EU-Startups said Relay had raised €9.2 million in seed funding in 2023. That report described the company as a technology-enabled delivery network working with e-commerce businesses and said it planned to expand beyond London across the UK.

Prologis’ own editorial coverage has described Relay as a company developing a digital approach to delivery, with operations in Greater London and Manchester and ambitions to expand further. However, the latest warehouse announcement does not give a new nationwide timetable or state which cities will receive additional Relay services.

The lease therefore confirms an increase in physical capacity, but it does not by itself confirm the exact scale, timing or geographical pattern of Relay’s future UK expansion.

What is the background to the development?

Prologis Park West London is being used by businesses involved in logistics, express delivery and e-commerce fulfilment. Relay first took space at the park in DC5a, where it established its UK operations before adding DC5b as demand and customer contracts increased.

The transaction is also connected to Prologis Ventures’ financial support for Relay. The venture capital arm invests in companies working on technology and innovation within supply chains, logistics and real estate. Relay’s business model has previously been presented as a technology-led approach to last-mile delivery.

Relay’s earlier funding activity provided capital for the company’s UK expansion, while the latest Prologis agreement provides additional warehouse accommodation. The funding and property arrangements are separate developments, although both support the company’s stated plan to increase its delivery network.

Industry coverage has also pointed to continued activity at the park. Prologis recently let DC6A to an international logistics and express delivery company from Asia, while 57,801 sq ft remained available in DC6B. The information available does not confirm any further occupiers or additional transactions beyond those reported.

How could the expansion affect e-commerce retailers and customers?

The immediate effect for Relay’s e-commerce retail customers could be greater operational capacity. If the company uses the additional warehouse space as planned, it may have more room to process and organise parcels as volumes rise, although Prologis and Relay have not announced specific changes to delivery times or service coverage.

For consumers, the development does not automatically mean faster or cheaper deliveries. Any effect on customers would depend on how Relay deploys the additional space, the contracts it has secured, its parcel volumes and the wider performance of its delivery network.

For logistics businesses and warehouse occupiers, the deal may indicate continued demand for facilities that can support last-mile delivery operations in and around London. However, the transaction alone does not establish a wider market trend or guarantee that other delivery companies will expand at the same pace.