Whether an existing lease can become “greener” - and to what shade of green - will depend on the nature, condition and age of the building and the willingness of all stakeholders to collaborate for positive change. Where a building is multi-let for instance, the co-operation of several owners, occupiers and management personnel will be required, adding to the complexity.
For let buildings there needs to be a recognition of responsibility from each party and collaboration - a “meeting of minds” - to identify opportunities for future progress and agree a plan to improve the building’s environmental performance. Sharing of building performance data, energy costs and best practice examples between the parties is critical here. Of course, there must be a realistic understanding of what can be done to meet the sustainable goals of each party having regard to the structural state of the building.
An engineer may be appointed to complete a structural survey on the building, the costs of which may be shared, and area of upgrade / improvement identified. The responsibility and cost of such an upgrade will be a negotiation point between the parties. For example, the parties could agree that the cost is recouped from the landlord by means of a rent free paid by the tenant through the service charge regime.
An independent legal assessment of the existing lease should be undertaken. The resulting agreement between the parties as regards how the building is to be occupied, operated, and managed in a more sustainable way will be reflected in an amending agreement to the lease or supplemental agreement inserting “green” clauses. Green clauses can be dark (i.e. requiring action) or light (i.e. encouraging action). Light green clauses are more commonly utilised where there is an existing lease.
For an existing lease to become a “green lease,” the clauses that generally undergo amendment include:
- repair;
- alteration;
- yield up;
- the service charge schedule; and
- rights of access.
The aim is to ensure the future use of the premises and any repairs completed by the tenant or otherwise do not have a negative impact on any accreditation or the general energy efficiency of the building. New clauses may be inserted to the lease relating to data sharing, metering, sustainable planning monitoring and co-operation between the parties. These clauses are generally put in place with the aim of reducing overall waste, energy and water consumption, and private car usage.
What can be done will very much depend on the desire of the parties involved and the circumstances of each case.