Keeping tenants happy is how Peter Love, a partner at Colliers International responsible for property and asset management, describes his job. "A property manager is like the concierge of a hotel. Just as a concierge ensures the hotel guests have everything they need and are happy, a property manager must do the same for his clients. We need to provide a high level of service to both the landlords and the tenants. We are hired by the landlord but paid indirectly by the tenants through their service charges." Happy tenants, as he explains, are more willing to extend their leases. Because one way of measuring an asset's value is to examine its income stream; raising the value of a property becomes simply a question of filling it with those tenants that are willing to pay the most. Reducing the operating costs (such as security maintenance and cleaning), reduces its impact on the overall occupancy cost to the tenant, allowing the landlord to maximise the level of rent he can charge for a