Prior to the Practice’s involvement, the development had an outline planning approval, with Phase 2 planned to deliver 214 homes, of which 15 were larger family houses. Stockwool were appointed to provide both tender (RIBA Stage 4) and construction package information, with a novation agreement already in place for selected contractor.
The provision of Level 2 BIM was a fundamental part of the service we provided. At the outset a BIM Execution Plan (BEP) was developed with reference to three key areas of the client brief:
The existing planning approval and concept design formed the initial basis of our BIM model. Our programme included a period of optimisation, allowing the team to reevalate the scheme and put forward proposals to both improve efficiency and reduce costs while maintaining the quality standards within the planning approval. A number of these proposals were approved by the client and implemented into the tender package. These included the reorganisation of the services provision, improvements to the service riser strategy to improve stacking, and rationalisation of the structural grid.
The BIM model was developed to a Level of Detail (LOD) and Level of Information (LOI) 2 and 3. The model was integral in coordinating the input of structural and MEP consultants from throughout the project stages, including the tender package and construction phases. During the design development Stockwool held regular clash detection workshops, as part of an ongoing exchange of information and co-ordination process.
In addition to providing the detailed design of the scheme, Stockwool led discussions with the local authority in relation to the discharge of conditions including the external materials. We also made Section 96a planning applications to cover minor design variations. The three dimensional studies were instrumental in our presentations to the local authority providing detailed, legible representation of the quality of materials, detailing.