A smart space is typically composed of heterogeneous networks of communicating and collaborating nodes with varying capacities of resources such as processing power, memory and energy. Recent developments in wireless communication technology and miniaturization of Consumer Electronics (CE) hardware have made Low Capacity Networks (LCN) such as Wireless Sensor and Actuator Networks (WSAN) an important element of smart spaces. However, resource and service management in LCNs that interoperate with resource-rich nodes of a smart space is still a challenge. We propose and implement an architecture for lightweight resource and service management in LCNs. Furthermore, we present a validation of the proposed architecture through performance analysis in comparison to an existing interoperability architecture.