||"Space analysis for a building is very important analysis whereby it can provide details of the space, i.e. room which has been analysed, including the space boundaries, space separator (including wall, ceiling or floor), total area and volume. Such information are very important whereby these parameters can be used for other applications such as calculating the heat-loss, designing a lighting system, ventilation system, air-conditioning system, etc. However, such analysis, although has been provided by several commercial packages (with some constraints), it still not yet being fully utilised by integrating with other downstream applications such as estimating, planning and site layout planning for further analysis. Therefore, a standardised building space data model need to be developed in order such integration can be achieved.Considering the importance of developing such data model for building space, several proposed generic models have been developed including RATAS Model, GSD Model, De Waard’s “House Model” and the COMBINE Integrated Data Model. However, most of the models did not fully been implemented for integrating design and construction. Such models have purposely been developed for solving a particular domain only. For example, COMBINE Integrated Data Model for HVAC application, positioning building components in architectural design in GSD Model and reasoning about building regulations in the De Waards House Model.A study have been done at the University of Salford, UK for integrating design and construction. Building space analysis has also been accommodated in this study whereby the building space has been analysed. All the parameters required for further analysis such as space boundaries, space separator and space functionality have been captured during design application and later will be integrated with other applications such as estimating, construction and site layout planning. The objectives of this paper are two-folds:-1. to present the Building Space data model.2. to show how the implementation of this building space model has been developed and how this implemented model has been integrated with other data models within an integrated construction environment.The paper will outlined the study on developing the building space data model and how such concepts have been implemented and developed in an integrated construction environment."