An office fitout is handed over on a specific date, and from that date the tenant’s finance and legal teams treat the project as closed. Inside the tenancy, the real test starts the week after. The space has to perform for staff who were not there during construction, against working patterns that were estimated in a brief written months earlier, and under daily use that quickly reveals what the design assumed and what the site actually delivered. The office manager is the person who sees this reveal first, and the first 90 days are when most of what will matter for the rest of the lease is surfaced.
The first 90 days are not a grace period; they are a working shakedown. Systems get properly loaded, defects appear under real use, and parts of the design that looked fine on plan turn out to create daily friction. A structured post-handover process in the tenant’s hands catches these while the original project documentation is fresh, while the contractor is still inside the defects liability period for any workmanship issues, and while the business has the attention budget to resolve them.
What The First 90 Days Are For
Two things happen in parallel across the first 90 days. The fitout itself is being proved under real use, and the business is adjusting to the new space. Both produce useful information, and the office manager’s job is to capture it in a form that can be acted on, rather than letting it disperse into individual staff complaints that never reach a resolution.
The shakedown perspective covers every system that was installed: lighting, HVAC, data, AV, security, door hardware, plumbing, joinery, and any integrations between them. Some of these will have been commissioned at handover but not tested under full occupation. Others will perform correctly at handover and fail once they are used at scale, in peak conditions, or across a full business day.
The adjustment perspective covers how people are actually using the space. Meeting rooms that looked adequate on plan turn out to be too small for the meetings the team runs, or too big. Breakout zones get used in patterns that were not anticipated. Storage decisions made during the brief are either vindicated or exposed. This is not defect information but it is operational information, and the office manager can route it into whatever minor adjustments will help the space fit its real use.
Week One: Systems Performance Under Peak Load
Week one is when the site goes from a quiet, lightly loaded environment (the last days of construction, commissioning and handover) to a fully occupied workspace. The load change reveals things that commissioning does not.
HVAC is the most common first-week issue. HVAC constraints are routinely discovered after handover rather than during design, and the first week is when most of them surface. A system that was zoned for an assumed layout may run too warm in some zones and too cold in others under actual occupancy. Diffuser positions that looked balanced on plan may blow directly onto a seated position. The office manager should capture comfort feedback by zone over the first five working days and raise specific patterns with the fitout team, who can usually adjust airflow and zoning without major works.
Lighting levels, particularly in meeting rooms, often need early adjustment. Rooms designed to a standard illuminance level can feel under-lit during AV-heavy meetings with the screen on, or over-lit for video calls. Sensor sensitivity and timeout settings in open-plan zones sometimes need tuning; an occupancy sensor calibrated to a walking pace can leave a seated concentrator in darkness until they wave.
Data and AV connections get their first real workout in week one. Some data outlets that passed commissioning may intermittently fail under load. Some AV presets may not match how the meeting rooms are actually being booked. These are usually small items but are cheaper to correct inside the defects liability period than outside it, and the office manager’s early log is what gets them into the contractor’s punch list.
Weeks Two To Four: Occupation-Driven Defect Identification
The second phase of the shakedown is when occupation-driven defects start to appear. These are not construction defects in the strict sense; they are items where the combination of workmanship and real use produces a failure that neither commissioning nor week-one load could surface.
Door hardware is a typical example. The commercial door and hardware decisions that were made during design reveal their consequences in the first few weeks of real use. A meeting-room door hinge that performs correctly on initial installation may begin to bind after the first few hundred cycles, particularly if the door has heavy closers or tight hinge tolerances. Door closers themselves often need adjustment once the HVAC is running at typical pressures, because the pressure differential between zones changes how the closer has to work. The office manager records the specific rooms affected and routes them for contractor attention.
Paint finishes can reveal their edges in these weeks. High-touch areas (around door handles, light switches, desk edges) start to show wear patterns. Any areas where the finish was under-specified or the substrate was inadequately prepared will flag themselves. These are boundary cases on the defects conversation; some are fair wear, some are workmanship issues, and the office manager’s role is to record the evidence rather than to adjudicate.
Plumbing and wet-area fittings sometimes show issues in these weeks. Kitchen tap seals, coffee-machine plumbing connections, dishwasher drainage, and toilet fittings installed by the fitout team all get first real use. Drips and loose fittings show up quickly under daily use and should be routed for contractor attention.
Weeks Four To Eight: Defects Liability Period Management
Commercial fitout contracts typically include a defects liability period running for a defined number of months after handover, during which the contractor is obliged to address workmanship defects that emerge. The period length is stated in the contract, and the practical window for resolving issues is usually the first few months when site evidence is freshest.
The office manager’s practical task during this window is to maintain the defects log, to categorise entries by type (workmanship versus wear versus operational adjustment), and to route workmanship items to the contractor in clear batches rather than piecemeal. Contractors are usually willing to address a properly documented list on a single site visit; they are usually less willing to engage with a stream of individual requests over weeks. Batching entries also reduces the coordination cost on the tenant side.
The defects liability period is also the window during which any substantial issues are most likely to become evident. Ceiling grid movement that was not apparent at handover may show up after a few thermal cycles through the building. Partition joints may exhibit hairline cracking as the tenancy settles. Flooring edges may lift. None of these are automatic emergencies, but each should be documented with a photograph, a location reference and a date. The record is what makes the subsequent conversation straightforward.
Weeks Eight To Twelve: Post Occupancy Space Tuning
By the eight-week mark, the staff have fallen into their working patterns in the new space, and the patterns are usually not identical to what the brief anticipated. This is the window to capture operational adjustments that will improve how the space serves the business over the lease term.
Meeting-room utilisation is the most consistent source of adjustment. The four-person huddle room may be consistently used for six-person meetings with people perched on the edges; the twelve-person boardroom may run at four-person capacity for 80 per cent of bookings. Neither is a defect, but both are useful data. Where the mismatch is severe, small adjustments to furniture or AV fitout can correct it. Where the mismatch is fundamental, the office manager at least has information to feed into the next fitout decision.
Breakout and collaboration zones usually reveal their real use in this window. Breakout spaces fail in predictable ways when size, placement and services were not matched to how the team would actually use them. Zones that were specified as informal breakout sometimes become de-facto meeting rooms, particularly if enclosed rooms are consistently booked out. Zones specified for quiet focus sometimes become noisy if adjacencies were underestimated. Some of these are design issues; some are cultural and will self-correct. The office manager records the patterns and flags them.
Signage and wayfinding sometimes need small adjustments once real traffic flows are observed. Rooms that everyone was going to by memory during the first week may need labels by week ten when visitors arrive regularly. Directional signs placed in positions that looked reasonable on plan may not read at the angle people actually approach them.
Documentation Standards And Reporting Protocols
A practical defects and observations log needs four fields per entry: location, description, photograph where applicable, and date observed. Entries are categorised into workmanship defects (for the contractor), minor adjustments (for the facilities team or building management), operational observations (for the sponsor or fitout lead), and supplier issues (for furniture, AV, or IT vendors).
The log is the single source of truth across the first 90 days. It prevents the same item from being raised multiple times, it preserves evidence for contractor conversations, and it produces a clean handover from the post-occupation window into business-as-usual facilities management at the end of the 90 days. An office manager who maintains the log from day one has an easier 90th day than one who starts it late.
Reporting cadence through the period is usually a short weekly summary to the sponsor covering new items, closed items, and any items escalating. Contractor-routed items run through whatever channel the fitout firm provided at handover, typically a single project manager contact. Building management-routed items run through the building’s usual tenant request process.
Identifying Defects Indicating Systemic Issues
Most of what emerges in the first 90 days is minor. A subset is not, and the office manager should be alert to the patterns that indicate something more structural.
Cracking along partition heads or across ceiling tiles that repeats after rectification may suggest a deflection or movement issue rather than a finish issue. Repeated door-closure problems across multiple doors may suggest a building pressure or HVAC balance issue rather than individual hardware faults. Water staining at ceiling tiles, if it appears in week one and was not present at handover, may suggest a services issue that needs urgent attention rather than a cosmetic item.
These are not conclusions the office manager should draw, but they are patterns the office manager should flag to the fitout team early rather than late. A cluster of small items that share a root cause is worth raising as a cluster, because the investigation and the fix are typically different from what a single-item log would suggest.
Final Handover And Project Closeout
At the 90-day mark the office manager usually runs a closing review. The defects log is reviewed, any outstanding items are escalated, a formal list is issued to the contractor for final defects liability attention, and the log transitions into the ongoing facilities record. The sponsor and the finance lead are briefed on the state of the fitout as it settles into routine use.
By this point the space is no longer the new office. It is the office the business works in, and its performance from here on is a facilities matter rather than a project one. The closing review is the moment to note what the fitout did well, what it did less well, and what the business would do differently on its next fitout. That record, kept somewhere the next office manager can find it, is one of the most useful legacy documents a tenant can produce.
If you are an office manager running a post-handover period on a Sydney commercial fitout and want the defects conversation and operational tuning supported by the team that actually delivers these spaces, we can help. We stand behind our work through the defects window and beyond, across full fitouts and standalone scopes, which means the post-handover conversation is informed by what was built rather than what was drawn.
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