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Definition
Base-building works generally provide the permanent structure, envelope, common areas and shared infrastructure. A tenant fit-out adapts the leased space for a business through internal construction, finishes, equipment and service distribution. However, the lease and project schedules determine the final boundary, whether planning office fit-outs, hospitality fit-outs or high-end shop fit-outs.
Key Takeaways
- The lease, agreement for lease, landlord work schedules and approved drawings override broad industry assumptions about responsibility.
- A service connection is not proof of adequate capacity, suitable condition, compliance or permission for the tenant to alter it.
- Record supply, connection, modification, payment, approval, maintenance and make-good duties separately before design and pricing.
Practical distinction
The Practical Difference Between Base Building And Fit-Out
The base building is the permanent platform within which individual tenancies operate. It commonly covers the structure, façade, roof, common corridors, lifts, shared amenities, central plant and incoming utilities. The fit-out creates the operational space inside that platform.
Landlord works are items the owner agrees to deliver, which may extend beyond the normal base building. Tenant works are items allocated to the occupier. Enabling works prepare the premises for either party, such as isolating services, removing an old fit-out, forming a penetration or upgrading central infrastructure.
These labels vary between projects. A detailed commercial office fit-out may cross the lease line to reach a riser, while a hospitality fit-out may require roof-level exhaust work in a landlord-controlled area.
The lease line is a property boundary, but it is rarely a complete construction responsibility boundary.
Typical comparison
Who Usually Handles The Building Fabric And Services?
These allocations are common starting points, not guaranteed rules. The lease, schedules and approved project scope may divide them differently.
| Factor | Base Building | Tenant Fit-Out |
|---|---|---|
| Structure And Envelope | Usually includes foundations, slabs, primary framing, columns, roof, façade and external weatherproofing. | Usually avoids structural alteration unless approved, documented and allocated as part of the tenant works. |
| Common Facilities | Common corridors, lifts, loading areas, shared toilets and principal accessible routes are commonly owner-controlled. | The tenant normally protects these areas during work and may fund changes triggered by the proposed tenancy use. |
| Central Services | May provide central HVAC plant, incoming power, hydraulic mains and principal fire-safety infrastructure. | Usually includes tenancy distribution, controls, outlets and modifications needed for the layout and equipment. |
Internal scope
Who Usually Handles Internal Construction And Handover?
Responsibility may be split even within one item. One party might own a system while another pays for its alteration, testing and reinstatement.
| Factor | Base Building | Tenant Fit-Out |
|---|---|---|
| Internal Construction | May provide a bare shell or agreed shell finishes, depending on the tenancy delivery schedule. | Commonly covers partitions, ceilings, doors, flooring, wall finishes, joinery and operational layouts. |
| Equipment And Signage | Usually excludes tenant workstations, appliances, specialist equipment and branded signs unless expressly agreed. | Typically includes business equipment, furniture, displays, security, data systems and approved tenancy signage. |
| Testing And Records | Retains records for landlord-owned systems and may control testing that affects shared building infrastructure. | Usually provides certificates, commissioning results, as-built drawings, manuals and access information for tenant work. |
Contract documents
The Lease And Responsibility Matrix Decide The Actual Boundary
Start with the lease and agreement for lease, then review the landlord works schedule, tenant works schedule, tenancy design guide, base-building drawings, approval conditions and make-good clause. These documents may set different obligations for possession, construction and lease expiry.
A responsibility matrix turns broad wording into practical questions. For every item, state who owns it, supplies it, pays for changes, performs the work, approves access, commissions it, maintains it and reinstates it. This is more useful than stating that everything within the tenancy belongs to the tenant.
Conflicts should be resolved in writing before relying on a quote. Guidance on residential construction quote inclusions also illustrates why assumptions and exclusions matter, while building permit responsibilities should remain distinct from contractual allocation.
Convert verbal assumptions into a written matrix that can be checked against drawings, pricing and the construction programme.
Complex interfaces
Services Are Where Fit-Out Responsibility Becomes Complicated
Building services rarely stop neatly at the tenancy boundary. Electrical responsibility may be divided between the incoming supply, main switchboard, tenant distribution board, metering, circuits and equipment connections. Each part needs a named owner and scope.
For HVAC, confirm central plant capacity, tenancy ductwork, controls, zoning, outside air, balancing and after-hours operation. Hydraulic checks should cover water, drainage, hot water, isolation points, grease arrestors and trade waste. Fire-service coordination may include sprinklers, detectors, alarms, emergency lighting and treatment of penetrations.
The same principle applies to communications, security and access control. Planning an office fit-out or shop fit-out should therefore begin with verified service information, not outlet counts marked on an old leasing plan.
Service presence, usable capacity, connection rights and maintenance responsibility are four different questions.
Shell conditions
How Shell Condition Changes The Expected Fit-Out Scope
Shell labels are not standard specifications. Confirm the actual finishes, service capacities, connection points, approvals and testing included at handover.
Cold Shell
Usually provides a basic structural enclosure with limited internal finishes or distribution. Substantial services and internal construction may remain.
Warm Shell
May include ceilings, lighting or basic service distribution, but each inclusion and its capacity must be checked rather than assumed.
Refurbished Shell
May contain renewed finishes or services intended for reuse. Their condition, suitability, documentation and warranties still require review.
Existing tenancies
Previously Occupied And Partly Fitted Tenancies
Existing elements may look ready to use, but reuse should be based on condition, operational needs, compliance, maintenance access and landlord acceptance.
Existing Fit-Out
Partitions, ceilings and services may be retained if suitable, although changes can affect fire coverage, air distribution and accessibility.
Changed Business Use
A new use may demand different power, ventilation, drainage, amenities, fire provisions or approvals from the previous occupant.
Partial Strip-Out
Some items remain while others are removed. The documents must identify isolation, damage repair, disposal and preparation for new work.
Victorian requirements
Approvals, Compliance And Landlord Consent Are Separate
Landlord approval, statutory approval and construction coordination are different processes. A landlord may consent to a layout, but that does not confirm whether planning permission, a building permit or sector-specific approval is required.
In Victoria, the pathway depends on the premises, approved use, building classification and work. Changes may affect accessibility, fire safety, egress, sanitary facilities, essential safety measures or occupancy documentation. External signage, heritage controls and a change of use may also introduce planning questions.
A building surveyor, relevant consultants and authorities should confirm project-specific requirements. Our guides to planning permits versus building permits and occupancy permits explain why construction completion and permission to occupy are not the same milestone.
Commercial cost allocation does not remove statutory duties held by owners, designers, builders, surveyors and licensed trades.
Building management
Landlord Rules Affect Access, Shutdowns And Shared Systems
Building management may require design submissions, contractor inductions, insurance records, work-method information and bookings for lifts or loading areas. Rules can also restrict noisy work, deliveries, waste removal and activities that create dust or odour.
Shared-system alterations often need an authorised contractor and a formal shutdown procedure. This can apply to fire alarms, sprinklers, water, power, mechanical systems and security. The fit-out programme should include review periods, access bookings, isolation windows and reinstatement testing.
Protection of common areas also needs a clear owner and standard. These constraints are especially relevant to office fit-out programmes and hospitality fit-out programmes within operational buildings in Port Melbourne and inner Melbourne.
Straightforward construction work can become programme-critical when it relies on a short, landlord-controlled shutdown window.
Why A Detailed Responsibility Matrix Is Worth Preparing
Advantages
- It exposes missing work and duplicated allowances before quotations are compared or contracts are finalised.
- It separates asset ownership from payment, installation, approval, maintenance and reinstatement obligations.
- It gives designers, consultants, the landlord and builder a consistent basis for coordination and change control.
Trade-Offs
- Preparing it requires early access to lease documents, service records and decision-makers from both parties.
- Some items remain provisional until investigation, consultant design or intrusive inspection confirms the conditions.
- The matrix must be updated when approved designs, landlord requirements or construction conditions change.
Cost and programme
What Changes Fit-Out Cost And Opening-Date Risk?
Cost and timing depend on the agreed boundary, tenancy condition and operational brief. A floor-area rate cannot account for these project-specific interfaces.
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01
Existing Conditions
Surveys, service testing, hazardous-material checks and opening-up work may reveal conditions not shown on available plans.
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02
Service Upgrades
Additional power, cooling, exhaust, drainage or fire work can require consultant redesign and landlord-controlled alterations.
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03
Structural Interfaces
Penetrations, heavy equipment, wet areas and roof-mounted plant may need engineering, waterproofing and acoustic coordination.
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04
Access Restrictions
Limited work hours, lift bookings, small delivery windows and common-area protection can change sequencing and site costs.
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05
Specialist Procurement
Custom joinery, switchboards, mechanical equipment and commercial appliances need coordinated information before ordering.
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06
Testing And Make-Good
Commissioning, close-out records, retained defects and future reinstatement obligations belong in the wider project budget.
Commercial impact
How Unclear Boundaries Affect Cost, Programme And Operations
An unclear boundary can create both omissions and duplication. The tenant may allow for a distribution board that the landlord is already supplying, while neither party includes the cable upgrade needed to feed it. These gaps often become visible only after design or construction has started.
Late clarification can lead to variations, consultant redesign, revised approvals, service shutdowns and new procurement. It can also disrupt neighbouring tenants if work needs access through ceilings, risers, roofs or common corridors.
Quote comparisons should therefore examine assumptions, exclusions and provisional scope rather than total price alone. The principles in provisional sums and variations are relevant, as is early onsite inspection where existing information is limited.
A missing interface item can affect several trades, approvals and the intended opening date, even when the item appears minor.
Office example
Scenario One: An Office With New Meeting Rooms
Consider a Port Melbourne office that appears to have usable air conditioning and sprinklers. The tenant proposes full-height meeting rooms, more workstations and separate temperature controls. The central plant may remain a landlord asset, but the new layout changes airflow, cooling loads and fire-service coverage.
The tenant may fund duct changes, controls, balancing, sprinkler relocations and detector adjustments. The landlord may still control system access, approve contractors and require testing through its nominated providers. Responsibility for any central plant upgrade must be confirmed rather than inferred.
Before pricing an office fit-out in Port Melbourne, the team should compare the operational brief with verified service capacity. The overview of what an office fit-out involves provides further context.
The landlord can own the central system while the tenant funds distribution, controls and upgrades caused by the proposed use.
Hospitality example
Scenario Two: A Café Without Enough Service Capacity
A café tenancy may be advertised with power, water and drainage, yet those services may suit retail rather than commercial cooking. The proposed equipment could require greater electrical capacity, dedicated exhaust, make-up air, hot water and an approved trade-waste arrangement.
The landlord may provide connection points but not guarantee their capacity for the new operation. Roof access, exhaust discharge, slab penetrations and grease-arrestor connections may cross landlord-controlled areas. Acoustic, odour and fire implications can also affect neighbouring premises.
A hospitality fit-out should therefore test equipment requirements before the kitchen layout is locked. Our explanation of what hospitality fit-outs involve outlines the wider operational scope.
A premises can contain every named service and still be unsuitable for the proposed hospitality operation without substantial modification.
Common Responsibility Mistakes To Avoid
These assumptions often create scope gaps, late redesign and disagreement about work that was never clearly allocated.
Assuming a warm shell has standard inclusions
Do this instead
Request a detailed delivery schedule covering finishes, service points, capacities, testing, approvals and the condition required at possession.
Treating landlord consent as full regulatory approval
Do this instead
Identify landlord, planning, building, authority and operational approvals separately, then assign responsibility for each submission.
Pricing before reviewing the lease and services
Do this instead
Issue the relevant documents and verified existing-condition information before comparing quotations and accepting exclusions.
Assuming visible services have enough capacity
Do this instead
Check electrical demand, HVAC loads, hydraulic requirements and fire-system implications against the proposed use and equipment.
Leaving make-good until the lease ends
Do this instead
Review removal and reinstatement obligations before design, then retain condition reports, approvals, photographs and as-built records.
What To Confirm Before Design And Pricing
Use written answers and attach the relevant evidence to the responsibility matrix, design brief and pricing documents.
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Collect Contract Documents
Obtain the lease, agreement for lease, work schedules, tenancy guide, approved plans and make-good clause.
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Record Tenancy Condition
Measure the space and document finishes, defects, retained items, service locations and evidence of previous alterations.
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Verify Service Capacity
Check power, metering, HVAC, water, drainage, exhaust, trade waste, fire systems, data and communications.
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Define Every Boundary
State who supplies, connects, modifies, pays, approves, commissions, maintains and reinstates each asset.
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Confirm Consultant Roles
Identify required design, structural, mechanical, electrical, hydraulic, fire, access and acoustic input.
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Map Approval Pathways
Separate landlord review, planning, building, authority, trade and occupancy requirements for the proposed work.
Construction, Handover And Lease-End Checks
Responsibility continues after design approval, so confirm site controls, testing, defects, maintenance and handback requirements.
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Plan Access And Shutdowns
Confirm work hours, inductions, loading access, lift bookings, isolation procedures and common-area protection.
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Allocate Temporary Services
Identify who provides temporary power, water, ventilation, security, barriers and business-continuity arrangements.
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Plan Testing Early
Schedule service testing, balancing, fire-system interfaces, authority inspections and any required retesting.
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Separate Existing Defects
Record pre-existing base-building defects separately from damage or non-conforming work caused by the fit-out.
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List Close-Out Records
Specify as-built drawings, certificates, commissioning results, manuals, keys, access controls and maintenance information.
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Review Make-Good Duties
Confirm what must be removed, repaired or reinstated at lease expiry and what the landlord has agreed may remain.
Defects and ownership
Defects, Warranties And Maintenance Need Clear Boundaries
A pre-works condition report helps separate existing base-building defects from fit-out damage. It should record visible water damage, cracked finishes, service faults, ceiling conditions and common-area damage before possession or construction begins.
The landlord may remain responsible for an existing roof leak or central plant fault, subject to the lease. The tenant and its contractors may be responsible for defects in new partitions, finishes and service alterations within their scope. Where the cause crosses both systems, investigation may be needed before responsibility can be assigned.
Product warranties, workmanship obligations and maintenance duties are not interchangeable. Maintenance arrangements should align with the lease, system ownership and handover information. An onsite inspection can help document conditions, while post-inspection planning should allocate follow-up action clearly.
Clear records protect both parties by distinguishing existing conditions, fit-out defects, later damage and routine maintenance.
Project close-out
Handover And Make-Good Responsibilities
Handover should transfer the information needed to operate and maintain the tenancy. Depending on the scope, this may include approved and as-built drawings, certificates, commissioning records, equipment manuals, warranties, maintenance schedules, keys, access credentials and unresolved defect records.
The landlord may also require confirmation that shared systems have been tested and returned to normal operation. Practical completion under the building contract does not necessarily mean every landlord, occupancy or operational requirement has been satisfied.
At lease expiry, make-good may require removal of partitions, cabling, signage or equipment, plus repair and reinstatement. The lease controls the outcome. Early records are valuable when comparing the final condition with the agreed starting point. See occupancy permit guidance and our office fit-out service for related context.
Do not assume that a valuable tenant improvement will be accepted by the landlord when the lease ends.
Professional roles
Who Should Resolve Unclear Fit-Out Responsibilities?
The landlord or property manager can confirm building rules, owner-controlled systems and design-review procedures. The tenant representative defines operational needs and coordinates commercial decisions. A suitably qualified lease adviser should review unclear contractual rights and make-good wording.
Designers translate the business brief into coordinated documents. Services consultants assess capacity and design alterations. A builder contributes site, sequencing, buildability and pricing input, but does not replace legal advisers, engineers or the building surveyor. The building surveyor performs an independent regulatory role where appointed.
Professional input is particularly useful for changes of use, structural penetrations, wet areas, fire-service changes, accessibility issues, intensive equipment or work in occupied buildings. Related reading includes when a building permit may be required and what a construction quote should include.
Responsibility is clearer when commercial, design, construction and regulatory roles are identified rather than assigned to one party.
Our approach
How We Approach Commercial Fit-Outs In Port Melbourne
We approach commercial fit-outs by considering feasibility and existing conditions before finishes are locked in. Depending on the tenancy and agreed scope, this means reviewing access, service interfaces, operational requirements and the practical construction conditions that may affect delivery.
We aim to keep landlord works, tenant works, client-supplied items and exclusions visible within the project scope. Where approvals or specialist design are required, the relevant consultants and decision-makers need to be identified rather than leaving those interfaces unresolved.
Our recommendations account for the building, neighbouring occupants and expected disruption. Clients considering shop fit-outs, hospitality fit-outs or office fit-outs can discuss the premises and proposed use before committing to a construction scope.
A commercially useful scope explains not only what will be built, but also which assumptions and interfaces remain to be confirmed.
Have any questions?
Base Building And Fit-Out FAQs
Can't find what you're looking for? Feel free to get in touch with our team.
The tenant often pays for sprinkler, detector and alarm changes caused by its layout, while the landlord controls access to shared systems. The lease and landlord guide decide the allocation. Review office fit-out scope and hospitality fit-out scope for related service interfaces.
No. Landlord consent is contractual, while a building permit is a statutory approval where required. Planning permission may also be separate. Read about planning permits versus building permits and when building permits are required.
Responsibility depends on the defect, its cause and the lease. Record the condition before work and notify the relevant party before altering it. An onsite inspection and clear inspection follow-up can support factual allocation.
The make-good clause may require removal, repair or reinstatement, even where the fit-out remains usable. Retain approvals and as-built records from the office fit-out, hospitality fit-out or other commercial project.
Summary
Document The Boundary Before Committing To The Fit-Out
Base-building conventions help with early planning, but they do not settle responsibility. The lease, work schedules, design guide, approvals and project documents must explain who supplies, pays for, modifies, approves, maintains and reinstates each item.
The most important checks concern service capacity, landlord-controlled systems, approvals, defects, handover records and make-good. Written allocation before design and pricing reduces duplicated allowances, omissions and late decisions that can affect the opening programme.
If you are considering commercial shop fit-outs or office fit-outs in Port Melbourne, begin with the tenancy condition, intended use and available documents rather than relying on the shell label alone.
Typical practice starts the conversation, but a project-specific written allocation should finish it.
Related services
Discuss A Commercial Fit-Out In Port Melbourne
Talk to us when you need to assess tenancy conditions and define a practical construction scope. Explore our shop fit-outs, hospitality fit-outs and office fit-outs.