The total cost of the project (including building set, shell erection and construction) will depend on site conditions as well as on your final specification and your chosen method of construction, i.e. self project management, use of a nominated main contractor. For further details please see our Fact Sheets.

To assist you in assessing the overall cost of the project, a ‘rule of thumb’ guide, based on the various procurement routes mentioned above, would be:

These estimated square foot prices are inclusive of building set, shell erection, window fit and construction costs. The price includes delivery to mainland site. The building set includes the timber frame with a fully boarded roof, insulation, 15mm plasterboard, triple glazed windows and external doors. Also included are offload charges, internal doors, skirting boards, architrave, insulated loft hatch and ladder (if applicable), open or closed tread staircase, mechanical ventilation system and all fixings and tapes required. The estimate assumes standard foundation requirements and a good, above average specification of finishing materials. It does not include any external works, connecting to utilities or associated professional fees.