C&A Surveyors FAQs
Looking for help or answers?
We know that land surveying can sometimes feel complex. Whether you’re a homeowner, designer, architect or just interested in land surveying, we’re here to provide clear, straightforward answers to your most common questions.
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Property Development and Subdivision
Do I need a survey before designing or building on my property?
Yes — getting a survey done early is essential. A land survey gives your architect, builder, or certifier accurate site measurements, levels, and boundaries to work from. This ensures your design fits the land properly, complies with council regulations, and avoids costly surprises during construction.
Some councils and certifiers require a contour (topographical) survey as part of the approval process. In many cases, a detail and boundary identification survey is also needed to confirm property boundaries.
At C&A Surveyors, we help you get started on the right foot with surveys tailored to your specific project and approval needs.
I would like to subdivide my property, what do I need?
You will require subdivision approval through either Council or a Private Certifier. In order to obtain approval, you will require a Preliminary Plan of Subdivision to submit with your application. Once approval has been obtained, we prepare the final Plan of Subdivision and associated documentation for lodgement to Land Registry Services. Our service includes obtaining required consent signatures and lodgements to authorities.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can prepare the necessary documentation to be registered with Land Registry Services to make the process as simple and smooth as possible.
I would like to strata subdivide my property, what do I need?
You will require Strata Subdivision approval through either Council or a Private Certifier. In order to obtain approval, you will require a Preliminary Strata Plan of Subdivision to submit with your application. Once approval has been obtained, we prepare the Final Strata Plan of Subdivision and associated documentation for registration with Land Registry Services.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can prepare the plans and documentation required to be registered with Land Registry Services to make the process as simple and smooth as possible.
I need to create a drainage easement through my neighbours’ property, what do I need to do?
A drainage easement can be registered in one of two ways; either through a Plan of Easement or a Transfer Granting Easement (Dealing Form). The method of registration is dependent on a number of factors, these factors include the location of the easement and the features of the property. The location and drainage details of the easement will need to be designed by a Hydraulic Engineer.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can prepare the documentation to be registered with Land Registry Services to make the process as simple and smooth as possible.
Boundary and Property Lines
Can you help if I have a boundary dispute with my neighbour?
Absolutely. Our surveyors can carry out boundary surveys that clearly define where your legal property lines are. We review historical plans, titles, and government records, then physically mark out the correct boundary on-site. This can help resolve disputes quickly, fairly, and legally — whether you’re negotiating privately or need evidence for legal proceedings.
In situations involving disputes, we understand the need for discretion. We can conduct the survey confidentially without notifying your neighbour, unless legally required. If you’re dealing with a boundary concern, please let us know beforehand so we can tailor our approach accordingly.
A proper boundary survey not only protects your property rights, but it can also prevent unnecessary conflict or future issues when selling or developing your land.
How do I find my property boundary line?
If you’re planning to build a fence, constructing near your property line or having a dispute with your neighbour, then a Boundary Survey might be right for you.
A Boundary Survey establishes the exact boundaries of a property and involves setting up physical markers such as wooden stakes to show those boundaries. This helps to make sure that contractors put up fences or walls in the right spot and prevents problems such as disputes or having to rebuild structures.
It is advisable to get your boundary marked before putting up a fence or undertaking any construction close to the property line. You don’t want to waste your money by building a fence or structure in the wrong spot. Make sure it’s built in the right place from the start with a boundary survey.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can carry out and sign your Boundary Survey.
I am replacing an existing fence, is it necessary to have a survey done?
Yes. The boundaries of a property are not determined by the location of existing fences. A Registered Surveyor will determine the location of the boundaries by performing calculations using data obtained during the site visit, State Survey Marks and existing survey plans registered with Land Registry Services. The Registered Surveyor will perform a boundary survey, where they will physically mark the location of the boundaries and provide a signed sketch.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can carry out and sign your Boundary Survey.
Construction and Building
Can I build a duplex on my land?
You may be allowed to build an additional dwelling on your land if it is zoned for residential purposes, depending on whether you satisfy certain planning conditions set out by your council.
In order to carry out any type of subdivision you will require approval from the local council or in some cases a Private Certifier. There are two possible methods for subdividing a Dual Occupancy:
1. Torrens Title Subdivision
2. Strata Subdivision
Depending on the council, the land could potentially be subdivided into smaller sections, each with its own title (Torrens Title Subdivision). Approval for subdivision can be sought as a standalone approval or in conjunction with a construction approval.
C&A Surveyors are fully insured and have a team of Registered Surveyors that can prepare your Preliminary Plan of Subdivision for approval purposes to be lodged with your Development Application to Council.
I am about to start construction; what surveys do I need?
My designer is asking for a survey, what do I need?
I am obtaining my Occupation Certificate; what surveys do I need?
Surveying Services
What is the difference between a contour survey and a detail & boundary identification survey?
A Contour Survey (also known as a topographic survey, detail survey or site survey) captures visible features and elevations of a site, such as ground levels and land contours, trees, fences and driveways. The boundaries of your property in a contour survey are in an approximate location.
A Detail & Boundary Identification Survey goes a step further by including an investigation and marking of the property’s boundaries using registered plans, title searches, and boundary marking by a Registered Surveyor.
Some councils and certifiers accept a standard contour survey for general development applications, however, most now require a Detail & Boundary Identification Survey to verify boundary positions and ensure structures are correctly sited.
What is a contour survey?
A contour survey — also called a topographic survey, site survey, or detail and level survey — is a detailed map that shows the natural and man-made features on your land, including trees, buildings, fences, retaining walls, and ground levels.
The purpose of a contour survey is to accurately represent the shape, slope, and elevation changes of your block of land. It allows professionals to understand how water might flow across your site, how steep or flat it is, and what needs to be considered before construction or design work begins.
Architects, building designers, engineers, and certifiers in Sydney rely on contour surveys to inform design decisions, ensure council compliance, and plan for drainage, excavation, or foundation requirements. Some councils and private certifiers may require this survey before approving a development application. In most cases however, they may request a Detail and Boundary Identification Survey, which includes boundary investigations alongside the contour information.
What is a 3D survey and how is it different from a regular survey?
A 3D survey, also known as 3D laser scanning, uses advanced laser technology to capture millions of precise measurements from your site in all directions. The result is a highly accurate, photo-realistic 3D model of your property that you can rotate, zoom into, and view from any angle.
Unlike traditional 2D surveys, which provide flat plans with limited perspective, 3D surveys deliver a complete digital replica of your site — walls, floors, ceilings, pipes, or surfaces are measured and captured in full detail. This makes it easier to spot potential issues early, plan more efficiently, and reduce costly errors during design or construction.
For clients, this means:
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Better design decisions with real-world dimensions
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Fewer site visits as you can virtually explore the model anytime
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Clearer communication between architects, builders, and consultants
When should I consider using a 3D survey for my project?
You should consider a 3D survey when accuracy and visual clarity matter most. This includes projects such as:
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Renovating complex homes or buildings
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Designing around heritage features
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Coordinating with multiple trades or consultants
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Planning fit-outs in tight or detailed spaces (like commercial or MEP projects)
Because 3D surveys provide a full visual and dimensional record of your site, they’re particularly valuable when you can’t afford mistakes, delays, or guesswork. Many of our clients—especially architects and builders—find that 3D surveys streamline their workflow, help them avoid redesigns, and give them a competitive edge in their proposals.
Surveying Professionals
What is a Registered Surveyor?
A Registered Surveyor is a land surveying professional who has been formally accredited by a state or territory’s governing body — in New South Wales (NSW), this is the Board of Surveying and Spatial Information (BOSSI).
A Registered Surveyor is the only professional who’s legally qualified to survey property boundaries in NSW.
What does a land surveyor do?
A land surveyor measures and maps land to define boundaries, levels, and features. Their work is essential for construction, design, and council approvals.
How can an experienced land surveyor save me money?
An experienced land surveyor helps you avoid costly mistakes by getting it right from the start. They identify boundary issues, level changes and site constraints early — before they become expensive problems during design or construction. Here’s how a skilled surveyor can save you money:
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✅ Prevents boundary disputes that can lead to legal costs
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✅ Reduces rework by giving accurate site data to your architect or builder
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✅ Speeds up approvals by ensuring surveys meet council and certifier requirements
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✅ Improves design efficiency, helping avoid over- or under-engineering
At C&A Surveyors, our industry-leading surveys give you and your team the confidence to plan, build, and invest wisely — without surprises later on.
General Enquiries
Do you need my address to provide a fee proposal?
What is a DWG file and why can’t I open it?
Do I need to be home when the surveyors attend to my property?
It is generally not necessary for you to be home when a C&A land surveyor attends the property. For the majority of surveys, we only need access to the front yard and backyard. It is necessary that pets are safely secured whilst the survey is being carried out.
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