Our landlords.

To achieve mobile connectivity in rural and urban areas, we need to place the right infrastructure in the right place. Our landlords are key in making this happen by allowing us to place our radio mobile apparatus on their land or rooftops. This has enabled us to acquire and manage over 20,000 sites that provide mobile connectivity around the UK.

Cornerstone supports Speed Up Britain. Click on the icon to find out more.

small Speed Up Britain Logo dark text

Our landlords

“Working towards improving our digital economy is a key driver for Cornerstone and to help deliver this, we are committed to becoming a trusted partner of all our landlords and will make every effort to consider them in everything we do.”

Belinda Fawcett
General Counsel and Director of Property and Estates

Our commitment to enhance and deliver mobile services is practised through building our relationships with our landlords. Whether it’s for a new site install, equipment upgrades or general site maintenance, we engage with our landlords continuously.

Our landlord pledge.

Our Landlord Pledge introduced in 2016 is a promise to our landlords to always work and effectively communicate with them. We are committed to practising the landlord pledge and always welcome feedback to ensure we provide our landlords with best-in-class service. To further support this, we follow the Ofcom Code of Practice, ensuring consistent behaviours in site dealings and negotiations. Our Landlord Pledge demonstrates we are:

landlord pledge infographic icon





Always ready
to talk










Always ready to talk

Contact us.

We want to ensure your enquiries to Cornerstone reach the right people. Please use our contact us form to provide your details, select your enquiry category and any additional information you can provide to help us to reply. Please also inform us of your preference to future relevant communications from Cornerstone.

Please enter your first name.
Please enter your last name.
Please enter a valid email address
Invalid Input
Please upload a file, max 2MB
Please enter a message
Please opt in to allow us to send you relevant communications.
Please select a communication option.

Explore more.

Shared knowledge and new ideas are essential in a constantly changing world which demands transformational solutions. The Cornerstone media hub is your source for industry insights, news, thoughts and innovations that will shape tomorrow.


Connected - your online landlord magazine.

This online hub is a crucial resource for you and your relationship with Cornerstone. You can access and read each of this issue’s articles here.

Church agrees deal with Cornerstone

Church of England deal to help boost digital connectivity for local communities.

The deal will deliver improved connectivity across rural communities and inner cities and provide much needed coverage in hard to reach areas.

Landlord's contacts

Contact us.

We want to ensure that it’s easy for you to contact us whenever you need to.

Contact us

Hive 2
1530 Arlington Business Park
Contact Cornerstone

Site Reporting

To report a site issue click here.

London Site Audit

To request site access or cancel a visit click here.