Building in Poland: documents to prepare before work begins

Start with the right to dispose of the property for construction purposes. Ownership is not the only possible basis, but the scope of the right must permit the planned works. Check the boundaries, access to the road and any existing encumbrances and restrictions. Data from a sales listing does not replace the current documents needed to prepare the design.

Gather information on utilities and ground conditions to the extent required for the investment. The location of networks, the shape of the plot and existing structures may affect the siting of the house. For ordering the roof, this is of indirect relevance: a change to the building form at the design stage will change the roof area, the drainage and the sheet schedule.

Check whether the area is covered by a local development plan. If not, establish the rules for obtaining a decision on development conditions where one is needed. The requirements may cover height, roof geometry, roof pitch and colours. A ready-made catalogue design must be adapted to the specific plot and the current planning provisions.

Do not make the final choice of covering based solely on visualisations. A dark roof, a flat roof or another roof shape may need to comply with local provisions. For a protected building, additional approvals apply. It is worth establishing these early, before you pay for made-to-measure material that cannot be used in a changed design.

The documentation comprises various parts that have their own tasks. The site development plan shows the siting of the investment, and the architectural and construction design shows its principal solutions. The technical design describes, among other things, the structure and the necessary trade-specific solutions. The scope and manner of submitting documents depend on the procedure and the type of project.

In the part concerning the roof, the assumptions for load-bearing capacity, insulation, ventilation and drainage should come together. If you plan sandwich panels or PIR insulation, pass this on to the designer. The choice of material changes the details and the method of fixing. A last-minute change requires checking whether the new solution matches the assumptions of the other parts of the design.

The procedure follows from the regulations and the characteristics of the structure. For some investments a permit is required, for others a notification, and certain works benefit from an exemption. For a single-family house, the conditions concerning the impact area are important, among other things. One should not transfer a neighbour’s procedure without checking the differences between the plots and designs.

The documents are supplemented by declarations and the required opinions, decisions and approvals. The appropriate form helps gather the scope of data, but does not resolve all design matters. Also check how the documentation is to be signed and submitted. For electronic correspondence, keep official confirmations and keep track of deliveries and response deadlines.

Make sure that the decision you hold or the notification you have made allows work to begin. Establish the obligations concerning the site manager, the site diary and the notification of commencement. Preparatory works may also constitute commencement of construction within the meaning of the Act. So do not postpone checking the procedure until the foundations are done or the carpenter arrives.

Organise access, the storage area and the method of unloading. Contracts with contractors should specify the scope, the sequence and the documentation of acceptances. The roof schedule is best based on confirmed dimensions and the current design. Long sheet metal ordered before the geometry has been checked may require reworking, which generates waste and additional cost.

Keep approved changes, material specifications and records. When the idea of a different covering or a new opening arises, agree it before execution. The designer will assess the significance of the deviation and the measures required. The verbal consent of a single crew does not replace the formal ordering of changes in the documentation for the entire project.

For later use, collect photographs of the covered layers and data on the products used. They will be useful at acceptance, for repair and for extension. A well-kept construction file is not a collection of random invoices. It should make it possible to reconstruct what was designed, what changes were agreed and what was actually carried out at each stage.