The type of work you'll need to be carried out - whether it's a boundary survey or something else - will determine who you select. If you're building, for example, the work will likely include electrical and plumbing layouts.
If this is what you require then it would be best to hire an architect with surveying society to sign off the drawings. This ensures the drawings are accurate and complete as per standards set by a professional body. The Land surveyor Auckland must meet certain standards before a house can be built so keeping these standards high is important for ensuring your investment is safe from damages during construction and later on through natural disasters such as earthquakes.
Although there are many architects around, not all have directly relevant experience in surveying, if that's what you need. They may have, however, carried out other works that are related to surveying and will be able to provide a reference from one of their past clients who has used a surveyor for this type of work.
An alternative might be to hire an architect with experience in the building but who doesn't have the relevant technical qualifications. There are many good architects out there without all the necessary paper qualifications, but you'll need to research them thoroughly before hiring them as they should not call themselves a surveyor or professional engineers, only architects.
For more precise tasks such as setting up a new fence line between two neighbors, it's best to hire a professional licensed land surveyor. This profession requires specific and must comply with strict industry regulations. Furthermore, they're required to keep up with the latest changes in government legislation and standards, unlike an architect who can get away with not having all of the technical qualifications.
There are other professionals apart from architects and surveyors who may be skilled in drawing plans, but only people with the relevant qualifications can call themselves land surveyors.
So what about hiring yourself? If you have the knowledge and experience to carry out all the checks, calculations, drawings required then it's possible to get away without using an architect or surveyor. You'll just need to ensure that your work complies with the New Zealand Land Surveyors Competency Standards which are enforced by the NZLS board of professional conduct. There are many aspects of this standard that you'll need to be aware of so it's best if you check them out before getting started on any project.
As for health and safety on-site, it's always best to hire a professional licensed Land surveyor NZ since they'll be concerned about your worker's wellbeing onsite.

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