Key takeaways
- Connectivity is a site establishment item, so it should be scoped, costed and programmed alongside fencing, amenities and the temporary board rather than added once a problem appears.
- Mobile coverage on a residential site depends on terrain, surrounding buildings and the stage of construction, so the only reliable answer comes from testing signal at the actual block before you commit to a plan.
- Any excavation on site should be checked against the Before You Dig Australia service before work starts, and the same discipline applies to locating and protecting the cable or conduit that will carry your site data.
- Data access changes what you can prove: photos, inspections, variations and deliveries logged against a date and a location are far easier to defend than a verbal account given months later.
- The choice between a fixed service, a mobile router and a temporary service mounted on the amenities block should be made on what the work actually needs, not on what is cheapest on the first invoice.
Most builders treat site establishment as a list of physical things: the fence, the amenities, the temporary board, the sediment control, the signage. Connectivity is rarely on that list, and it shows up later as a problem rather than a decision. A supervisor arrives to find no signal in the temporary office, or the subbie cannot lodge a claim because the file is on someone’s laptop at home.
The cost of getting this wrong is not the monthly bill. It is the lost hours, the rework, the dispute about what was agreed on site, and the day the certifier or the client asks for a record you cannot produce. Data access on a residential site is now part of how the job is run, so it belongs in the same conversation as the fence and the board.
This article treats connectivity and data access as an establishment task. It covers what to test before you commit, how to choose between the options, how to protect the data path once it exists, and what to do at handover.
Why connectivity belongs in site establishment, not in week three
Site establishment is the point where the site is made workable. If the work depends on data, then the data path is part of making it workable. Deciding this later means you are making the decision under pressure, usually on the day something fails, and you pay whatever the first available option costs.
The commercial reality is that connectivity is cheap to plan and expensive to improvise. A fixed service ordered before the slab is poured can be installed while the site is still open and the trench is easy. The same service ordered after the frame is up may need a different route, a different mounting point, and a longer wait. The work is the same; the access is not.
There is also a documentation effect. Once site records are captured digitally — photos, inspection notes, delivery dockets, variation requests — the quality of those records depends on the connection being there when the event happens. A photo taken the next day from memory is worth far less than one taken at the time. If you want to understand how this fits with the rest of your systems, the PointCPD article on getting your team to use the software you paid for covers the software side; this article covers the connection that makes it usable.
Planning connectivity as a site establishment task
- 1Scope the needWrite down who needs data on site and for what: supervision, inspections, deliveries, subbies lodging claims.
- 2Test the siteWalk the block and check mobile signal at the likely site office position, at the front boundary and at the rear of the block.
- 3Choose the serviceDecide between a fixed line, a mobile router or a temporary service based on the test results and the programme.
- 4Locate the pathConfirm where any cable, conduit or trench will run and have services located before excavation.
- 5Install and labelSet up the equipment in the site office, label the network and lock down who can change settings.
- 6Review at handoverDecide what stays for the client, what is removed, and record it so the disconnection is not left to chance.
Test the block before you choose a service
Coverage maps are an indication, not a measurement. They are built from models and reported data, and they do not know about the hill behind the block, the new warehouse next door, or the fact that your site office will sit in a cut below the street. The only reliable answer comes from standing on the block with a phone and checking.
Do this at the position where the site office will actually sit, not at the front boundary where the agent stood. Check the front, the rear, and the likely office position. Note the time of day and whether the result changes when the block fills with trades. A site that has usable signal at seven in the morning can be unusable at ten when the surrounding area is busy.
If the block is marginal, the answer is usually to move the office rather than to buy a better router. A site office repositioned a few metres can pick up a usable signal, and that costs nothing but a decision made early. If no position works, you know before you commit that you need a fixed service or a temporary service with a different technology.
Where the site is in a flood planning area, the flood risk management manual published by the NSW Government is the reference for how flood behaviour is assessed and what constraints apply. That matters for where you put the office and how high you set the equipment, because a site office in a low point is a bad place for electronics in a storm.
Choose the service on what the work needs
There are three practical options on a residential site, and the right one depends on how long the job runs and what you actually do with the connection.
- Fixed service. A line installed to the site, usually to a temporary pillar or the site office. Best where the job runs long enough to justify the install, and where the work depends on a stable connection for file uploads and inspections.
- Mobile router. A router with a data plan, placed where the signal is best. Fast to deploy, no trench, and easy to move. The limitation is that it inherits whatever coverage the block has, and it competes with every phone on site.
- Temporary service. A service mounted on or near the amenities block or the site office, arranged for the life of the job. Useful where you need something more stable than a mobile router but cannot justify a permanent line.
Two things drive the decision more than price. The first is upload capacity, because site photos and documents move off site, not onto it. The second is continuity, because a connection that drops when the office power is switched off at night is not a connection you can rely on for remote access. Put the router on a circuit that stays on.
Lead in. The mistake that costs the most is trenching or excavating for a data path without having services located first, because a struck service stops the job, creates a safety incident and a repair bill, and the delay runs through every trade that was programmed after it.
Protect the data path the same way you protect any service
Once you have a cable or conduit carrying site data, it is a service. It needs to be located before excavation, protected where it crosses a traffic route, and recorded so the next person who digs knows it is there. The Before You Dig Australia service exists for exactly this: you lodge an enquiry and get information about underground assets in the area before you break ground.
The same discipline applies to a temporary overhead run. If the data cable crosses a path where a machine or a delivery truck will pass, it needs to be high enough, marked, or routed around. A cable pulled down by a truck is a small repair and a large disruption if it happens on the morning of an inspection.
Record the route. A simple marked-up plan showing where the cable or conduit runs, kept with the site documents, is enough to stop the next excavation from cutting it. This is the same principle that applies to any buried service, and it is the reason the location information is worth keeping after the job finishes.
What to confirm before the first trade arrives
- Mobile signal tested at the actual block, not estimated from a coverage map.
- Site office position chosen with a clear line to the nearest tower or exchange.
- Power to the site office confirmed, with the router on a circuit that is not switched off at night.
- Before You Dig Australia enquiry lodged before any trenching for a data cable.
- File structure and access permissions agreed so photos and documents land in the right job.
- A named person responsible for the account, the equipment and the disconnection date.
- A fallback plan for the days when the primary service is down.
Decide what data you need on site, and where it lives
Connectivity without a file structure just means everyone can reach the same mess. Before the first trade arrives, agree where documents live and who can see them. On most residential jobs the sensible split is between the current job folder, the reference material, and anything that is commercial in confidence.
Think about what actually gets captured on site: progress photos, defect photos, inspection records, delivery dockets, safety documents and variation requests. Each of those has a different life. A defect photo needs to be findable months later when the client raises it. A delivery docket needs to be matched to an order. A variation request needs to be traceable to a date and a person.
That is a records question as much as a technology question, and it is worth thinking about how your records would stand up if a dispute went further. If you want the wider context on how digital information is structured on a residential job, the PointCPD article on BIM for residential builders explains how model and document information is organised, and the article on construction project management software covers how the tools fit together.
Manage access and security on a live site
A site network with no controls is a liability. The practical minimum is a changed default password on the router, a separate guest network for subbies and visitors, and a written record of who holds the main credentials. If the network is compromised or misused, you want to be able to show what you did to manage it.
Access to files should follow the same logic. Subbies need what they need to do their work, not the whole job folder. Commercial documents, contracts and pricing should sit behind permissions that reflect who is entitled to see them. This is not about distrust; it is about making the default safe so that an accidental share does not become a problem.
Keep the credentials somewhere that survives a change of supervisor. A job that stalls because the only person who knows the router password has left the company is an avoidable delay. Treat the network like the site keys: a register, a handover, and a rule about who can change the settings.
Where BASIX and planning documents fit
On a NSW residential job, the approval documents are part of what you need to have accessible on site. BASIX is the NSW planning system’s sustainability index for residential development, and the commitments made in a BASIX certificate are matters the builder has to deliver and be able to demonstrate. You can read the official material on BASIX at the NSW Planning Portal.
The practical point is that the certificate and its commitments need to be available to the people doing the work, not just filed in the office. If a trade is installing insulation or glazing, they need to know what the approved specification is. Having the current documents reachable from the site, rather than in a folder at home, is exactly the kind of thing connectivity is for.
The relationship between BASIX and the rest of the approval is set out by the NSW Planning Portal, including how a certificate relates to the development application and the conditions of consent. The point for site planning is simpler: know which documents govern the work, and make sure the site can reach them.
Worked example: a builder in western Sydney
A builder in western Sydney takes on a knockdown rebuild on a sloping block. The site office is planned for the high side near the street, which is where the old garage stood. At establishment, the supervisor tests mobile signal at that position and finds it usable in the morning but unreliable by mid-morning, and there is no signal at all at the rear of the block where the slab will go.
Rather than accept it, the supervisor walks the block and finds a better position a few metres along the side boundary, clear of the proposed driveway and with a usable signal through the day. The office is repositioned there. A fixed service is ordered at the same time, because the job runs long enough to justify it, and the trench is dug while the site is still open.
Before the trench is dug, the supervisor lodges a Before You Dig Australia enquiry and gets the location information for the area. The route is marked on the site plan. The router is placed in the office on a circuit that stays live, and the guest network is set up for subbies.
Halfway through the job, a subbie asks to see the approved glazing specification. The supervisor pulls the current documents up on site and confirms it in the same conversation. Later, when the client queries a defect, the photo taken at the time is found in the job folder and dated. None of this was dramatic; it was the result of a decision made in the first week rather than the fifth.
What to do at handover and disconnection
Connectivity has an end as well as a beginning. At practical completion you need to decide what stays and what goes. If the client is taking the fixed service, arrange the transfer or the new connection before the handover date, not after. If the service is temporary, book the disconnection so you are not paying for a site that is finished.
Remove the temporary equipment, recover the router and any mounted hardware, and cancel the data plan. Clear the site network and reset the equipment before it goes back into the store, so the next job does not start with the last job’s passwords. Hand over any documentation the client needs about services on the property, including where any conduit or cable runs.
Then review the job while it is fresh. What worked, what did not, and what would you specify next time. That review is worth recording, because the next sloping block will have the same question and you will want the answer before you are standing on it.
Where this sits in your CPD
Site establishment decisions, including connectivity and data, sit inside the broader competency of managing a residential building project. If you want to understand how the NSW builder CPD framework works and what you are required to do, the PointCPD guide to NSW builder CPD sets out the structure. The PointCPD course catalogue lists the courses available if you want to go further into site management and technology topics.
The main point is that connectivity is a decision, not an accident. Test the block, choose the service on what the work needs, protect the path, manage access, and plan the disconnection. Do it in the first week and it costs you an hour. Leave it and it costs you the job.
Questions builders ask
When should I organise site internet for a residential job?
Treat it as a site establishment item and organise it in the first week, alongside the fence, amenities and temporary board. A fixed service ordered while the site is open is easier to install than the same service ordered after the frame is up, because the trench and the mounting point are accessible.
How do I know if mobile coverage will work on my site?
Test it on the block with a phone at the position where the site office will sit, plus the front and rear of the block. Coverage maps are an indication only, because they do not account for the specific terrain, surrounding buildings or the cut the site sits in. If the signal is marginal, moving the office can be cheaper than changing the technology.
Do I need to lodge a Before You Dig Australia enquiry for a data cable?
Yes, if you are excavating or trenching to install a cable or conduit, you should lodge an enquiry through Before You Dig Australia before you break ground. It provides information about underground assets in the area, which is what you need to avoid striking a service. The same discipline applies to protecting the data path once it is installed.
What should I do with the site network at handover?
Decide what stays and what goes before practical completion. If the client is taking the fixed service, arrange the transfer or new connection ahead of the handover date. If it is temporary, book the disconnection, recover the equipment, cancel the plan and reset the hardware before it goes back into the store.
Can I rely on a mobile router for the whole job?
Sometimes, but it depends on the coverage the block actually has and how much upload traffic the job generates. A mobile router is fast to deploy and easy to move, but it competes with every phone on site and inherits the local coverage. If the work depends on a stable connection for inspections and file uploads, a fixed or temporary service may be the better choice.
Where do BASIX documents fit into site connectivity?
The commitments in a BASIX certificate are matters the builder has to deliver, so the current documents need to be reachable by the people doing the work. That means the trades installing insulation or glazing can check the approved specification on site rather than relying on a folder at home. The NSW Planning Portal sets out how BASIX relates to the approval and the conditions of consent.
Sources
- BASIX · NSW Planning Portal
- Before You Dig Australia · BYDA
- BASIX and planning approvals · NSW Planning Portal
- Flood risk management manual · NSW Government
Published 21 August 2026. General information for builders, not legal, financial or engineering advice for a specific job. Check current requirements with the relevant regulator or standard before relying on them.
