Tenant-installed warehouse solar is now standard practice on UK logistics leases — and the BBP Green Lease Toolkit has become the de-facto industry standard for landlord consent.
The landlord consent process
Step 1 (Week 1): Written notification to landlord's asset management team — system size, mounting type, structural engineer, MCS installer identity. Step 2 (Weeks 2-4): Structural survey preliminary findings submitted to landlord. Step 3 (Weeks 4-8): Institutional landlord review — 4-8 weeks for Prologis, Segro, GLP, Tritax, Blackstone (all BBP-aligned). Private landlords: 6-14 weeks. Step 4 (Weeks 8-12): Licence to Alter (LTA) executed. Typical LTA legal costs for tenant: £2,000-£5,000. Step 5 (Months 3-14): G99 submitted after LTA; installation follows.
Reinstatement: what to negotiate
Default: reinstatement at lease expiry. Negotiate: (1) landlord right to elect to retain system at nil cost (standard in BBP-aligned addenda); (2) capped reinstatement cost; (3) full reinstatement waiver in exchange for asset transfer. For leases under 7 years: PPA structure often preferred (avoids reinstatement complexity).
PPA vs ownership for shorter leases
Ownership optimal: leases 10+ years; owner-occupiers. PPA preferred: leases 5-10 years; off-balance-sheet treatment required; frequent 3PL tenant changes. Most national 3PL operators on institutional landlord estates have standardised on PPA for leases below 8 years remaining.
See more
Green lease guide: /guides/warehouse-solar-green-lease/. PPA guide: /guides/warehouse-solar-ppa-contract-review/. Finance options: /guides/warehouse-solar-finance-options/. Contact: /contact/.