BCA Submission for Landed Renovation: Plans, Permits and Site Readiness

October 29, 2026

Yang's Inspiration Insight

Organised unoccupied landed construction site with reinforced concrete columns, scaffold and protective fencing, no workers

Key Takeaways

  • Establish whether the proposed building works require submission and a permit.
  • Structural plan approval and permission to start structural work are distinct steps.
  • Name the qualified professionals, builder and supervision responsibilities in the appointment.
  • Keep design changes, site records and completion requirements coordinated throughout the project.

BCA submission for landed renovation depends on the actual building works proposed and the applicable requirements. Where structural works require approval, the necessary plans and permit must be addressed before those works start. Homeowners should ask for a responsibility schedule that connects design, submission, construction and completion.

This guide explains the process from an owner’s perspective. It does not replace the appointed Qualified Person’s assessment of the house or determine whether a particular intervention is exempt. The first task is to define the proposed scope accurately enough for that assessment.

What BCA’s Current Guidance Establishes

BCA’s structural plan submission guidance identifies the role of a Qualified Person who is a registered Professional Engineer in the civil or structural discipline. Its permit guidance states that the permit application is made jointly by the developer, QP and builder, and that the permit is needed before the relevant structural works begin.

For the homeowner, the practical distinction is between having a design, obtaining the required approval and being ready to commence the work. Ask the team to show evidence of each relevant step. A contractor’s proposed mobilisation date should not be treated as confirmation that the statutory process is complete.

BCA Submission for Landed Renovation Begins With Classification

Describe the proposed alterations using drawings and a schedule of work. Identify any changes involving structure, new floors, extensions, excavation or other building work. Do not rely solely on the contractor’s package title, because a cosmetic renovation label may conceal a more substantial intervention.

Ask the appointed professional to check whether exemptions apply to any item. BCA publishes guidance on building works not requiring approval, but an owner should not infer that a whole project is exempt because one component appears on an exempt-work description. Record the assessment and revisit it if the scope changes.

Keep planning requirements in a separate column. The URA approval guide for landed renovation explains that side of the process. Coordinating the two reviews early reduces the chance of developing an interior around a form or structural change that has not been properly assessed.

Name the People Responsible for Each Step

Clarify who acts as the relevant QP, who designs the structure, who carries out the works and who provides required supervision. Ask each appointment to state deliverables and exclusions. The guide to QPs, PEs and architects helps explain the roles without assuming that one job title covers every service.

Identify the owner’s contact for decisions and the route for technical questions. A single coordinator can make communication easier, but the underlying professional responsibilities still need to be clear. Do not allow a sales conversation about a complete package to replace written appointments and a responsibility schedule.

Confirm how changes in personnel will be handled if they occur. The project should maintain the necessary appointments, records and continuity rather than leaving responsibilities uncertain while work proceeds. Keep current contact information with the site documents and the owner’s project file.

Prepare Existing Information Before Detailed Design

Gather available plans, records of previous alterations and a measured survey. Ask the technical team to identify where the existing building needs further investigation. A drawing showing a wall’s position does not necessarily establish its construction, condition or structural role.

Close view of neatly coordinated structural drawing sheets without readable text beside scale model and hard hat
AI-generated illustrative concept. Close view of neatly coordinated structural drawing sheets without readable text beside scale model and hard hat.

Make investigation allowances visible in the programme and budget. If access or opening-up is needed, agree the method and timing with the relevant professionals. Avoid asking a contractor to remove an uncertain element merely to discover whether the preferred layout will work.

The landed additions and alterations guide helps connect the technical assessment with the overall renovation scope. Compare the benefits of the proposed intervention with its implications for adjacent rooms, temporary works and the sequence of construction.

Separate Submission Time From the Whole Programme

Ask the QP to explain the applicable submission route and current service standards, including whether coordinated agency review is involved. Review periods depend on the submission and its completeness. They should not be presented as the total time needed to survey, design, revise and prepare the project for construction.

Build the programme around milestones that can be checked. These may include completion of investigations, coordinated drawings, submission, responses to comments and confirmation of the relevant permit. State who updates the programme when an assumption changes.

Keep owner decisions aligned with those milestones. A late change to stairs, openings or room levels may require more than an interior drawing revision. Ask the team to explain the technical and submission consequences before treating the change as a simple aesthetic preference.

Check Site Readiness Beyond the Permit

Before work begins, review how the site will be protected, accessed and managed. Ask the builder and professional team to identify required surveys, neighbour communication and supervision arrangements for the scope. These tasks should have owners and completion dates in the mobilisation checklist.

Clarify how retained parts of the house and nearby property will be protected. Temporary arrangements should be planned by the relevant competent parties, not improvised around the homeowner’s preferred completion date. Keep emergency contacts and escalation procedures accessible to everyone who needs them.

If anyone will remain in the house, assess that arrangement separately. A permit does not mean that occupying an active work area is suitable. The construction method, safe access, essential services and separation from work need a specific plan before staying in is considered.

Control Changes During Construction

Require proposed structural changes to reach the QP before implementation. BCA’s permit guidance distinguishes material changes requiring prior approval from other changes that still need proper records and incorporation into relevant submissions. Let the professional determine the applicable treatment instead of making that judgment on site informally.

Use a change register linking the instruction, drawing revision, cost and programme effect. This gives the owner a clear decision record and helps the contractor avoid building from superseded information. Photographs are useful supporting evidence but do not replace the necessary technical documentation.

Keep interior details coordinated with the revised structure and services. A changed beam or opening can affect ceiling heights, cabinetry and lighting. Resolving those interfaces before finishes are installed is usually more manageable than discovering the conflict at handover.

Agree What Completion Means

Ask the team at appointment stage which inspections, records and completion clearances apply to the project. Put the relevant deliverables in the handover schedule. Physical completion, contractual completion and regulatory completion should not be treated as interchangeable labels without explanation.

Retain final drawings, relevant approvals, warranties and maintenance information in an organised file. Review outstanding items against the contract and professional advice. A well-managed submission process should leave the homeowner with a usable record of the completed house, not only a folder of early design images.

Frequently Asked Questions

Can Structural Work Start Once the Plans Are Approved?

Check that the required permit has also been obtained and that other applicable commencement conditions are satisfied. Plan approval and permission to start structural works are distinct steps. Ask the appointed QP and builder to confirm readiness with the relevant documents before the affected work begins.

Can My Interior Designer Submit Every Technical Plan?

Do not assume that an interior design appointment includes every statutory role. Relevant submissions require appropriately qualified and appointed professionals. Ask the firm to identify the QP, structural designer, builder and supervision arrangements, with their responsibilities recorded in the service scope and project coordination plan.

How Long Does the BCA Process Take?

The duration depends on the submission route, completeness, technical issues and revisions required. Ask the appointed professional for current service standards and a project-specific programme. Separate authority review from survey, design preparation and responses to comments rather than treating one published processing period as the entire timeline.

What Happens if the Structure Changes During Construction?

Refer the proposed change to the QP before implementation. The professional should determine the required review, approval and record updates. Coordinate the consequences for cost, programme and interior details, and issue controlled revised drawings so the contractor does not proceed from an informal site instruction alone.