Nick Garvey MCIOB – Chartered Construction Manager

1. Building Regulations Approval

Your architectural designer should now produce detailed building specification and drawings for Building Regulations approval. These ensure that the extension complies with safety, structural, and legal standards.

You will need to submit these to the local authority or an approved private building inspector for approval.

2. Appoint Other Consultants

To ensure your project proceeds smoothly and meets all requirements, you should appoint the following consultants:

a) Structural Engineer

• Required to calculate and design the structural elements (e.g., steel beams, load-bearing walls, foundations).

• They ensure the structure is safe and can support the loads.

b) Party Wall Surveyor (if applicable)

• If your project involves work on or near a boundary wall with a neighbor, or shared walls, you’ll need a Party Wall Agreement under the Party Wall Act 1996.

• A Party Wall Surveyor can manage this process.

c) Mechanical and Electrical (M&E) Consultant (optional but recommended for complex projects)

• For larger or more sophisticated extensions, an M&E consultant can design heating, ventilation, plumbing, and electrical systems.

d) Quantity Surveyor (QS) (optional)

• A QS can provide a detailed breakdown of costs and ensure the project stays within budget. They can also help with tendering to builders.

e) Building Control Inspector

• You need to appoint either a local authority building control officer or an approved private inspector to ensure that the construction complies with Building Regulations.

3. Prepare Tender Documents

Your architectural designer or Quantity Surveyor should prepare a tender package, including:

• Building specification and drawings.

• Detailed scope of work.

• Budget and payment schedule.

This helps you obtain accurate quotes from builders.

4. Select a Builder/Contractor

Once the tender documents are ready:

• Shortlist reputable builders: Request recommendations, check reviews, and inspect their past work.

• Obtain multiple quotes: Compare costs, timelines, and the quality of service.

• Sign a contract: Use a formal construction contract (e.g., JCT Contract) to outline responsibilities, timelines, and payment terms.

5. Notify Neighbors

• Inform neighbors of the start date and any disruption. This can help maintain good relations.

6. Site Preparation

• Ensure the site is ready for construction: clear the area, arrange access, and confirm utilities are available.

By carefully appointing the right professionals and following these steps, you’ll ensure a smoother construction process with fewer risks or delays. Would you like help drafting a checklist or a more detailed timeline?