How Real Estate AI is Changing Lease Review at Grosvenor

"Some of our leases are time-consuming to review. What used to be a lengthy process is now completed in minutes with Orbital Copilot, with greater confidence and less risk."
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‍– Andy Doyle, Director of Operations, Innovation & Strategy, Grosvenor 

About Grosvenor 

Grosvenor is a nearly 350-year-old international real estate organisation with a world-class portfolio, including the iconic London estates of Mayfair and Belgravia. In London’s West End alone, it supports over 1,000 businesses and tens of thousands of residents and workers daily. Across the estate, that means around 400 directly managed buildings which translates into roughly 10,000 lease-related documents.

The Challenge: answers locked inside 10,000 documents

Grosvenor’s building surveyors and asset managers handle hundreds of lease-related tasks, including licence-to-alter reviews and service charge analysis. The building surveying team alone receives 200–250 applications annually, and a single application can mean reviewing five or six leases within a block. Many of those leases are historic, handwritten or written in calligraphic script, making them difficult to interpret.

Accessing key property details was slow and inefficient, making proactive portfolio management a persistent challenge. Reviewing leases often took 10–30 minutes per document, making larger projects like estate-wide reviews costly without legal outsourcing.

Grosvenor’s innovation team was also exploring ways to modernise their workflows, while maintaining strict standards for data privacy, compliance, and security.

Orbital: built for real estate

Grosvenor deployed Orbital to automate lease reviews across their estate, quickly proving value by compressing review time and increasing the confidence of their in-house team in every real estate answer required.

Purpose-built for commercial real estate, Orbital understands both the complexity of property documents and the realities of how real estate teams work. That specialised expertise set Orbital’s real estate-specific technology apart from the generalist legal AI platforms Grosvenor assessed.

"We first came across Orbital and really liked its domain expertise and its particular focus on the property sector, as opposed to some of the other generalist legal tech tools available in the market.”
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– Andy Doyle, Director of Operations, Innovation & Strategy, Grosvenor 

Grosvenor’s innovation team further collaborated with Orbital to:

• Enable TIFF-to-PDF conversion, unblocking access to hundreds of legacy scanned documents
• Create bespoke reporting templates to automate extraction of key clauses from thousands of leases
• Build batch-upload and review workflows to power estate-wide initiatives, such as their recent sinking fund review

Everyday work: from backlog to self-serve

The first gains came in everyday workflows. When a licence-to-alter application comes in, the surveying team can generate an automated report that surfaces the relevant lease clauses, with every answer linked back to the source lease. The result is faster decision-making and greater confidence, without the need for time-consuming manual review. 

“Now we can just do a quick automatic report in Orbital to then immediately identify if there are any relevant clauses in the lease.”
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– Alex Wolff, Senior Building Surveyor, Grosvenor

Across Grosvenor, that means better oversight of what each individual lease within the portfolio actually says, with less dependence on legal for recurring lease reviews.

“This is not a tool that is just for the legal professions. This is also something that is very powerful for day-to-day management of portfolios and giving people within our business insights and data at their fingertips to help drive efficiency and effectiveness on behalf of our customers.”
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– Andy Doyle, Director of Operations, Innovation & Strategy, Grosvenor

Unlocking new real estate work: the sinking fund review 

The benefits of Orbital have extended beyond operational efficiency for Grosvenor to strategic portfolio management. A much needed estate-wide sinking fund review (in place to identify sinking fund provisions across approximately 10,000 leases) had long been deprioritised due to the likely time and cost required. With Orbital reducing review time from up to 30 minutes to just one or two minutes per lease, the team estimates the completed review saved around 83 days and provides a more proactive approach to managing the estate.

"We wouldn't have even attempted the sinking fund project without Orbital Copilot, now it’s possible—and cost effective."
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‍– Rennae Du, Innovation Manager, Grosvenor

The Impact

The impact of Orbital has been extensive for Grosvenor, improving both everyday lease reviews and large-scale portfolio analysis.

• Faster lease review: review time dropped from 10–30 minutes to 1–2 minutes, a saving evidenced across a range of use cases
• Accurate document analysis: Orbital’s document restoration technology could interpret historic, calligraphic leases, providing Grosvenor with a key capability that most tools struggled with
• Optimised legal spend: whilst legal reviews remain an important function, teams are empowered to self-serve for understanding routine real estate due diligence tasks
• Increased confidence: thanks to clear citations, visualisation capabilities and document traceability 
• Strategic projects prioritised: the sinking fund review, long deferred on time and cost grounds, delivered with an estimated 83 days saved

The Result

By deploying real estate-specific legal AI with Orbital, Grosvenor has transformed a long-standing operational challenge into a scalable strategic advantage, empowering teams not only to work faster, but to solve problems that were previously beyond the reach of manual processes. The result is more than faster lease review: it's a new standard for real estate portfolio management.