- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 08 Dec 2014
Self-build home: Prepare production information
In this stage, we attribute design activities to ‘designers’. These may be architects and engineers, a design and build contractor, or a kit house supplier. If a kit house supplier is only supplying the house itself, additional design consultants may be required.
Production information may include:
- Drawings (location drawings, component drawings and dimensioned diagrams).
- Specifications, calculations and design criteria. Specifications provide descriptions of the materials and workmanship required. Design criteria might include; environmental conditions, acoustic requirements, critical dimensions, accessibility requirements, loadings and so on.
- Bills of quantities or schedules of work. Bills of quantities are measured quantities of the work identified on the drawings and specifications that can be used to cost the works. Schedules of work are 'without quantities' instructional specifications often produced on smaller projects, or for items such as builders work or fixing schedules.
- Bespoke cladding systems.
- Service diversions.
- Underground drainage.
- Piling and groundworks.
Many elements of production information will be produced by suppliers or contractors. The designer should check drawings and specifications provided by suppliers and contractors to ensure they are properly co-ordinated.
Increasingly, software is used to prepare elements of production information, such as; computer aided design (CAD) to prepare drawings, and proprietary systems for the preparation of specifications. The recent emergence of building information modelling (BIM) can allow the automatic generation of production information from a single co-ordinated model, which should result in a reduction in errors and so costs.
NB During this stage, the lead designer should also co-ordinate any outstanding information needed for remaining building regulations or other statutory approvals which must be submitted before works start on site. It is also important to ensure that any necessary party wall notices have been served.
► Next stage:
- Appoint a contractor to construct the home, or;
- Appoint a range of contractors and suppliers to construct the home, or;
- Confirm appointment of the design and build contractor to construct the home, or;
- Confirm appointment of the supplier to fabricate and install the kit house.
Featured articles and news
Balfour Beatty fined £500,000 for exposing workers to hand-arm vibration.
James Brokenshire launches a consultation on banning combustible cladding.
A year after Grenfell, we have a collection of 30 articles telling you everything you need to know.
ICE publish a policy paper on the UK’s future interconnectivity with the EU and the challenges for infrastructure.
Detailed guidance about construction waste management.
The changing identity of London communities in the face of rapid urbanisation.
Can you help? We have 300 industry acronyms beginning with 'C' but none beginning with 'Y'.
From the sinister Carceri d’Invenzione to the triple portrait of Sir Watkin Williams-Wynn and his Grand Tour travelling companions.
BSRIA launch the 5th edition of the Design Framework for Building Services (BG 6/2018).
Stella Rimmington famously said the construction industry was just as tricky as the KGB.
Construction site visitor cards are to be withdrawn.