FTTB for Apartments: The Developer's Guide to NBN Compliance in New Multi-Dwelling Developments

If you are developing a multi-dwelling building in Australia — apartments, townhouses, or mixed-use with residential floors — NBN Co infrastructure is not optional. Under the Australian Government's Telecommunications in New Developments (TIND) policy, developers are legally obligated to register with NBN Co before construction completes and to provide the physical infrastructure that makes the NBN network possible inside their building.

Fail to do this, and your building reaches practical completion without any NBN connectivity. Residents cannot sign up with any NBN-based broadband provider. From a developer liability standpoint, that is a significant defect.

This guide covers everything a developer, project manager, or architect needs to know: what Fibre to the Building actually is, how it differs from full fibre FTTP, what you are required to build and when, and how to navigate the NBN Co registration process without blowing your construction schedule.

For a broader view of how telecommunications fits into your development programme, see our guide on apartment technology infrastructure planning.

What Is FTTB — Fibre to the Building?

Fibre to the Building (FTTB) is an NBN access technology in which a single high-speed fibre connection runs from the street network to the Main Distribution Frame (MDF) or communications room inside your building. From that point, each apartment connects to the network via the building's internal cabling — typically existing copper pairs or, in newer developments, Cat6.

Within apartments, NBN Co installs a Network Termination Device (NTD), which is the point from which residents connect their router. The NTD communicates back to the building's internal copper using VDSL2 (Very High Speed Digital Subscriber Line 2) technology.

Key technical characteristics of FTTB

• Maximum download speed: 100 Mbps per apartment (NBN 100 plan)
• Maximum upload speed: 20 Mbps
• Technology on the last leg: VDSL2 over copper
• Shared fibre: yes — one fibre feed serves the whole building from the street to the MDF
• Speed sensitivity: actual speeds are affected by the length and quality of copper between the MDF and each apartment

Because the VDSL2 signal degrades over distance and is sensitive to cabling quality, the internal horizontal cabling design in your development has a direct impact on what speeds your future residents can achieve. Short, high-quality copper runs perform well. Long runs or corroded joints can pull real-world speeds well below the 100 Mbps ceiling.

FTTB vs FTTP: The Critical Distinction for Developers

Not all fibre NBN is the same, and the distinction matters significantly for property value, future-proofing, and resident satisfaction.

FTTB (Fibre to the Building)

• Fibre runs to the MDF in the building's communications room
• Individual apartments connect via internal copper using VDSL2
• Maximum speed: 100/20 Mbps
• NBN Co's legacy default for most existing multi-dwelling buildings
• Internal cabling quality is a limiting factor

FTTP (Fibre to the Premises)

• A dedicated fibre strand runs from the street network to an NTD in each individual apartment
• No VDSL2 conversion — pure optical fibre to the unit
• Maximum speed: 1000/400 Mbps (and higher tiers are planned)
• Supports all current and future NBN speed tiers
• No speed degradation from internal copper length or quality

For a detailed technical breakdown relevant to strata decision-making, see our article on FTTB vs FTTP comparison.

Which technology will your new development get?

NBN Co's TIND policy has been moving toward FTTP as the preferred default for new developments, particularly larger multi-dwelling unit (MDU) buildings. However, the technology assigned to your development depends on the NBN network footprint in your area, the size of your development, and how you register. FTTB remains the assigned technology for a significant portion of existing apartment stock and some new developments where the surrounding network infrastructure is FTTB-based.

The most important principle for developers is this: regardless of whether your building is assigned FTTB or FTTP, you must design and build the physical infrastructure inside your building to NBN Co's specifications. The difference is in what NBN Co installs on its side. Your conduit pathways, communications room, risers, and internal cabling are your responsibility either way.

NBN Developer Obligations Under the TIND Policy

The Telecommunications in New Developments (TIND) policy is the legal framework that governs developer obligations. Under TIND, developers of new multi-dwelling buildings must:

1. Register the development with NBN Co via the NBN New Developments portal before construction completes
2. Provide conduit pathways and cable hauling routes from the building entry point (BEP) through to the MDF and up through risers to each floor
3. Design and build the MDF or communications room to NBN Co's dimensional and environmental specifications
4. Provide power and earthing within the communications room to support NBN Co's equipment
5. Install horizontal cabling from the risers to each apartment's NTD location
6. Meet lead times — for most multi-dwelling developments, NBN Co requires a minimum of six months from registration to a connection-ready handover

NBN Co contributes the external infrastructure: the fibre cable from the street to your BEP, the Fibre Distribution Hub (FDH) or cabinet on your boundary, the lead-in conduit from the BEP to your MDF (where applicable), and the NTD installed in each apartment.

The developer contribution charge applies per lot or premises. This charge is set by NBN Co under the TIND policy and is payable as part of the application process.

The NBN Co Registration Process: Step by Step

The registration and build process follows a structured sequence of milestones. Understanding these milestones — and where your critical path dependencies sit — is essential for integrating NBN Co's programme into your construction schedule without delays.

Step 1: Eligibility check and portal registration

Before you can submit a full application, complete an online eligibility check via the NBN New Developments portal. You will need your development address, lot count, and estimated completion date. If eligible, you proceed to a full application.

At this stage you will also be assigned an NBN Co project contact and gain access to the developer portal, where you can track tasks, submit documents, and monitor your estimated Ready for Service (RFS) date.

Step 2: Application assessment and charges confirmation

NBN Co assesses your application, confirms the technology type for your development, and provides a breakdown of the developer contribution charges. You will receive a Letter of Conditional Approval — sometimes referred to as a provisioning or council letter — once charges are paid and terms agreed. This letter is often required by councils as evidence of telecommunications compliance.

Step 3: Design review

You (or your telecommunications designer) submit your internal cabling design, communications room layout, conduit route plans, and riser pathway drawings. NBN Co reviews these against their published engineering and design standards and provides feedback. You cannot begin building NBN infrastructure inside the property boundary until the design is approved.

This is the stage where undersized communications rooms, inadequate conduit routing, and non-compliant riser pathways are identified. Rework at this stage is far preferable to rework during or after construction.

Step 4: Construction requirements agreement and build

With the design approved, you build the NBN infrastructure inside your property boundary: conduit, communications room fitout, earthing and power, horizontal cabling to each apartment, and the physical location designated for each NTD. All work must be completed by an NBN-accredited cabler.

NBN Co concurrently progresses the external network build: the lead-in cable, FDH, and external works required to bring the fibre to your BEP.

Step 5: Inspection and Provisional Completion Notice (PCN)

On completion of your internal build, you submit a Provisional Completion Notice and As Built documentation via the portal. NBN Co inspects the installation against design standards. Any defects must be remediated before sign-off.

Step 6: NBN Co installation and handover

Once your infrastructure passes inspection, NBN Co installs its equipment in the communications room and NTDs in each apartment. The development is declared Ready for Service. Residents can then contact an NBN retail service provider to establish their broadband connection.

Developer Registration Milestone Timeline

The following table reflects typical lead times for a mid-scale apartment development (20 to 100 lots). Larger projects and those in constrained urban areas may require additional lead time for external network works.

Rule of thumb: Developers should register with NBN Co no later than 12 months before target practical completion for a standard apartment project. For larger or staged developments, earlier is always better.

What the Developer Builds vs What NBN Co Installs

A common source of confusion — and costly disputes — is the split of responsibility between the developer and NBN Co. The boundary is your property line, broadly speaking, but the specifics matter.

Developer responsibility (inside the property boundary)

• Conduit pathways from the BEP to the MDF/communications room
• Conduit routes from the communications room through risers to each floor
• Conduit from risers to each apartment's NTD mounting location
• The MDF or communications room itself: room dimensions, ventilation, lighting, power outlets, earthing bar
• Horizontal cabling from the riser to each apartment (copper or Cat6 depending on technology type)
• Physical NTD mounting locations within each apartment
• All work performed by an NBN-accredited registered cabler

NBN Co responsibility (generally from street to MDF)

• Lead-in conduit from the street to your Building Entry Point (BEP)
• Fibre Distribution Hub (FDH) or street-side cabinet
• Fibre cable from the FDH to the MDF inside your communications room
• DSLAM or FTTB aggregation equipment in the communications room (for FTTB builds)
• Individual fibre drops to each apartment (for FTTP builds)
• Network Termination Device (NTD) installation in each apartment

Getting this split wrong — for example, assuming NBN Co will run internal conduit — is one of the most common causes of programme delays and defect disputes at practical completion.

For detailed guidance on communications room specifications and design, see our resource on MDF and communications room design standards.

The FTTB-to-FTTP Upgrade Pathway: What It Means for Developers Today

NBN Co announced a limited trial in July 2025 for upgrading selected FTTB buildings to full FTTP. The trial involves fewer than ten buildings nationwide and is designed to assess the complexity and feasibility of upgrading existing FTTB multi-dwelling units to individual fibre connections. Interested building owners or bodies corporate can express interest by contacting NBN Co directly at [email protected].

For buildings that are not part of the trial, a broader FTTP upgrade pathway for MDUs also exists. NBN Co charges $275 per unit (GST inclusive) for an FTTP upgrade, requiring agreement from the body corporate to upgrade all apartments simultaneously.

What this means for developers designing new buildings today

If your development is assigned FTTB today, the internal cabling infrastructure you install will determine how disruptive any future FTTP upgrade is for your building's future owners and occupants. There are two practical design decisions that make an eventual upgrade materially simpler:

1. Use Cat6A internal horizontal cabling instead of copper pairs. Cat6A runs can carry VDSL2 for FTTB today and are also suitable pathways for blown fibre microduct installation during a future FTTP upgrade.
2. Oversize your conduit routes. Spare conduit capacity in risers and horizontal pathways means NBN Co technicians can install additional fibre without opening walls or creating new penetrations.

These are not expensive decisions at construction stage. They become expensive if they are not made, and a body corporate later needs to fund a full recabling project to accommodate an FTTP upgrade.

The design philosophy for internal cabling in new developments should always be fibre-ready, even if the initial NBN technology is FTTB. For more detail on specifying cabling systems correctly from day one, see our guide on structured cabling design for apartment buildings.

Consequences of Not Registering with NBN Co

This section is direct for a reason. Developers occasionally deprioritise NBN Co registration on the assumption it can be handled closer to completion, or delegate it without confirming it has been actioned. The consequences of this approach are severe.

A building that has not completed the NBN Co registration and build process will not be Ready for Service at handover. Residents moving in will have no access to NBN-based broadband. In Australia, virtually all retail broadband services — including those from Telstra, Optus, TPG, Aussie Broadband, and every other major provider — are delivered over the NBN network. Without NBN, residents have no fixed broadband option.

This is not a minor inconvenience. In practice:

• Residents in a newly completed apartment cannot work from home, stream, or access internet services
• The developer faces potential breach of contract claims where the apartment sale or lease implied functional telecommunications infrastructure
• The body corporate inherits a defect that may take months and significant additional cost to rectify
• NBN Co's minimum lead times mean the remediation cannot be fast-tracked simply by paying more

The regulatory and commercial risk associated with non-compliance with TIND far exceeds the programme management effort required to register and complete the process correctly.

Common Developer Mistakes — and How to Avoid Them

Based on the types of issues that arise during NBN Co design reviews and post-completion remediation, these are the mistakes that cause the most damage to programme and budget.

Registering too late

NBN Co requires a minimum of six months from registration for standard developments. For larger or multi-stage projects, 12 months is the practical minimum. Developers who register at the six-month mark to practical completion frequently run out of schedule when design revisions, external network delays, or construction issues consume that buffer. Register as early as your development approval allows.

Under-sizing the communications room

NBN Co publishes minimum room dimensions for MDU buildings. A common failure mode is where the communications room is designed to the minimum footprint without accounting for the developer's own building management equipment — patch panels, MATV head-end equipment, access control, CCTV management — that also needs to live in the same space. When NBN Co's equipment is added on top of a room that is already tight, the installation either cannot proceed or requires expensive room modifications.

Plan the communications room holistically from the earliest design stage, accounting for all occupants of the room, not just NBN Co's requirements.

Inadequate conduit routes from entry point to MDF

The conduit run from the Building Entry Point to the MDF must be a clean, accessible, unobstructed pathway. Developers who route this conduit through congested plant rooms, around water infrastructure, or via routes that require entry into occupied or restricted areas create ongoing problems for NBN Co installation and maintenance. The pathway needs to be dedicated, clearly labelled, and accessible by NBN Co technicians without escort requirements.

Using standard copper pairs on new builds

Where FTTB is the assigned technology, some developers install minimum-specification copper horizontal cabling to each apartment. While this satisfies current FTTB requirements, it limits actual speeds achievable in each apartment and forecloses fibre upgrade options without full recabling. Specifying Cat6A costs marginally more at construction stage and pays significant dividends in performance and future flexibility.

Not coordinating the conduit build with the construction programme

NBN Co's internal conduit and cabling installation must be completed before walls, ceilings, and floor coverings are in place in the areas the conduit traverses. If the NBN Co registration and design approval process is running behind the construction programme, the builder may close up walls before conduit has been installed. Retrofitting conduit through completed building fabric is one of the most expensive and disruptive outcomes in telecommunications remediation.

Refer to the telecommunications planning checklist for a construction programme integration framework.

Frequently Asked Questions

Q: When do I need to register my apartment development with NBN Co?

A: For most multi-dwelling developments, NBN Co requires a minimum of six months from registration to Ready for Service. In practice, you should register as early as possible after development approval — ideally 12 months before your target practical completion date. This allows buffer for design reviews, any external network works, and the construction of your internal infrastructure without programme pressure.

Q: Does my development get FTTB or FTTP?

A: This depends on the NBN network footprint covering your site, your development size, and NBN Co's current rollout policy. NBN Co's TIND policy has been moving toward FTTP as the default for new developments, but FTTB remains the assigned technology in some areas. You will be informed of the technology type during the application assessment phase. Regardless of which technology is assigned, your internal infrastructure obligations are broadly similar — the difference is in what NBN Co installs at the MDF level and in each apartment.

Q: What happens if the building is completed and NBN Co hasn't declared it Ready for Service?

A: Residents will have no access to NBN-based broadband services. No retail provider can activate a service without an RFS declaration from NBN Co. This is a practical defect that can expose developers to claims from purchasers and tenants. It cannot be resolved quickly — NBN Co's processes have fixed lead times that cannot be compressed by urgency alone. The only mitigation is completing the registration and build process correctly before practical completion.

Q: Can I choose FTTP instead of FTTB for my new development?

A: In many cases, yes. Developers can request FTTP through the TIND application process, and NBN Co's current policy increasingly favours FTTP for new multi-dwelling builds. The internal infrastructure requirements are slightly different — you will need individual fibre pathways from the communications room to each apartment rather than copper horizontal cabling. Discuss technology preference early in the application process to understand what is available in your development's NBN footprint.

Q: Who is responsible for installing the NTDs in each apartment?

A: NBN Co is responsible for procuring and installing the Network Termination Device (NTD) in each apartment. The developer's responsibility is to provide the physical mounting location and the cabling back to the riser that NBN Co's NTD will connect to. You need to provide the pathway; NBN Co installs the device.

How Pickle Can Help

Pickle works with apartment developers, project managers, and construction teams across Australia to coordinate every stage of the NBN Co new development process.

We handle NBN Co portal registration and correspondence, design the MDF and communications room layout to meet NBN Co's published standards, and specify the internal cabling infrastructure for FTTB and FTTP buildings. We also coordinate the engagement of NBN-accredited cablers and manage the design submission, review, and revision cycle with NBN Co on your behalf.

Getting your telecommunications infrastructure right from design stage — not as an afterthought at lock-up — is the single most effective way to avoid programme delays, costly remediation, and liability at practical completion.

To discuss your development's NBN Co obligations, contact Pickle on 1300 688 588 or email [email protected].

Sources:

• Government policy for new developments | nbn
• nbn process guide for new property development | nbn
• New Developments FAQs | nbn
• What you'll need to apply | nbn
• Upgrade your building's nbn technology to full fibre | nbn
• Fibre to the Building (FTTB) explained | nbn
• NBN upgrades are coming to apartments - but not those with FTTB | WhistleOut
• How Strata Managers Can Help Bring Full Fibre to the Buildings You Manage
• NBN in New Builds: Essential Guide for Developers
• NBN Fibre to the Building (FTTB): Everything you need to know | WhistleOut