PS1 PS4 Structural Engineer Auckland
If your Auckland building project involves structural design, building consent or construction review, you may need professional engineering documentation such as a PS1 or PS4 Producer Statement.
Bazaraa Consulting Engineers provides structural engineering support for projects where PS1 and PS4 services may be required. We work with property owners, architects, builders, project managers and other project professionals to provide clear engineering advice and documentation suited to the project.
A simple way to understand the difference is: PS1 relates to design, while PS4 relates to construction review. They serve different purposes and are not interchangeable.
What Is a PS1 Producer Statement?
A PS1 Producer Statement – Design relates to the design of building work.
For structural engineering projects, a PS1 can provide the engineer’s professional opinion about the relevant structural design and how it addresses applicable New Zealand Building Code requirements.
A PS1 may be prepared as part of the documentation supporting a building consent application where appropriate. The statement should relate to the specific engineering work undertaken and identify the relevant design and compliance considerations.
It is important to understand that a PS1 is a professional statement based on the engineer’s work. It is not a product warranty or a guarantee that building consent will be approved.
Whether a PS1 is required, and whether it is accepted as part of a consent application, depends on the project and the requirements of the relevant Building Consent Authority.
What Is a PS4 Producer Statement?
A PS4 Producer Statement – Construction Review relates to the construction stage rather than the original design.
Where engineering construction review has been agreed or required, a structural engineer may review relevant construction work and provide a PS4 based on the work completed within the agreed scope.
Construction review may include site observations, reviewing construction information or checking relevant structural work against the engineering design.
The scope of a PS4 can vary from project to project. It should not be considered a blanket certification of the entire building. Instead, it relates to the specific construction review undertaken by the engineer.
PS1 vs PS4: What's the Difference?
The difference is straightforward:
| PS1 | PS4 |
| Relates to design | Relates to construction review |
| Associated with the design stage | Associated with the construction stage |
| Supports relevant structural design documentation | Supports relevant construction review documentation |
| Focuses on the proposed design | Focuses on relevant work completed during construction |
A project may require a PS1, PS4, both, or neither. The requirements depend on the type of work, engineering scope and Building Consent Authority requirements.
PS1 & PS4 Structural Engineering Services in Auckland
Our structural engineering services can support different stages of a building project, depending on what the project requires.
This may include:
- Structural design and calculations
- Engineering drawings and documentation
- PS1 design documentation where appropriate
- Structural assessments
- Construction review
- PS4 documentation where appropriate
- Site observations and engineering reviews
- Design compliance with the New Zealand Building Code
- Coordination with other project consultants
We can work alongside architects, project managers, client representatives, builders, contractors and business development managers to keep engineering requirements aligned with the wider project.
PS1 Structural Design for Building Consent
When structural engineering forms part of a building consent application, the design documentation needs to clearly communicate the proposed structural solution.
Depending on the project, this may involve:
- Structural calculations
- Engineering drawings
- Design specifications
- Relevant Building Code provisions
- Supporting technical information
- PS1 Producer Statement – Design, where appropriate
The design approach will depend on the building, site, proposed work and applicable requirements.
A structural engineer can help identify the engineering information needed for the project and prepare documentation suitable for the agreed scope.
However, a PS1 does not guarantee building consent approval. The Building Consent Authority assesses the complete application and determines whether the information provided meets the requirements for that project.
PS4 Construction Review in Auckland
A PS4 may be relevant when engineering review is required during construction.
The engineer’s involvement can include agreed site observations and review of structural work against the engineering design and documentation.
The number and timing of reviews will depend on factors such as:
- Project complexity
- Structural design
- Construction methodology
- Type of building work
- Consent requirements
- Agreed engineering scope
For this reason, PS4 requirements should be discussed at an early stage rather than assuming that every project will require the same number of inspections or reviews.
What Information Does an Engineer Need?
The information required depends on the project and the type of engineering service being provided.
It may include:
- Architectural drawings
- Structural drawings
- Existing building plans
- Engineering calculations
- Site information
- Project specifications
- Construction details
- Relevant construction records or photographs
Providing complete project information can help the engineer understand the work and establish the appropriate scope.
Why Choose Bazaraa Consulting Engineers?
PS1 and PS4 documentation should reflect the actual engineering work carried out and the requirements of the project.
Bazaraa Consulting Engineers takes a practical, project-focused approach to structural engineering. We aim to explain technical requirements clearly so that property owners and other non-engineering clients can understand what is needed.
Our team can assist with structural design, engineering documentation and construction review where these services are appropriate.
We also coordinate with other project professionals to help ensure structural requirements work alongside the architectural design, construction programme and wider project objectives.
Our consulting engineering services are available for projects in Auckland and across New Zealand.
How Much Do PS1 and PS4 Services Cost?
There is no fixed price for PS1 or PS4 services because every project has a different engineering scope.
The cost may depend on:
- Complexity of the structural work
- Engineering calculations and drawings required
- Existing information available
- Site review requirements
- Construction complexity
- Number and scope of engineering reviews
- Coordination with other consultants
The best way to establish the appropriate fee is to discuss your project and confirm the engineering scope first.
Frequently Asked Questions
A PS1 is a Producer Statement – Design associated with design work. For structural engineering, it can provide the engineer's professional opinion regarding the relevant design and applicable Building Code requirements.
A PS4 is a Producer Statement – Construction Review. It relates to construction review undertaken by an appropriately qualified professional within an agreed scope.
Not necessarily. Some projects may require a PS1, some may require a PS4, while others may require both or different documentation. Requirements depend on the project and Building Consent Authority.
Bazaraa Consulting Engineers can provide relevant structural engineering, design and construction review services where they fall within the project's requirements and the engineer's professional scope.
No. Producer statements are not automatically required for every project. The documentation required depends on the project and the requirements of the relevant Building Consent Authority.
Need PS1 or PS4 Structural Engineering Support?
If you need PS1 structural design, PS4 construction review or general structural engineering support in Auckland, Bazaraa Consulting Engineers can help clarify what your project may require.
Contact Bazaraa Consulting Engineers to discuss your project, engineering scope and the documentation or construction review support you may need.
