Most commercial paving projects happen on properties that remain open during construction. Tenants need access. Customers need parking. Deliveries must continue. The phasing plan determines how all of this works — and getting it wrong creates problems that are difficult to fix mid-project.
This guide covers phasing strategies for active commercial properties.
Why Phasing Matters
Phasing divides the project into sections that are completed sequentially, allowing the rest of the property to remain operational. Without phasing, the entire lot would be closed for the duration of construction — which is rarely acceptable for commercial properties.
The phasing plan balances two competing goals: construction efficiency (larger work areas = faster production = lower cost) and property access (more open area = less disruption to tenants). The optimal balance depends on the specific property and its operational requirements.
A good phasing plan is developed collaboratively between the property manager and the contractor. The property manager understands tenant needs and operational constraints. The contractor understands construction sequencing and production requirements. Together they find the approach that works for both.
Common Phasing Strategies
Half-lot phasing divides the property into two halves. One half is paved while the other remains open. After the first half is complete, operations shift and the second half is paved. This is the simplest approach and works well for rectangular lots with adequate parking capacity.
Zone phasing divides the property into 3–5 zones based on operational priority. High-priority zones (building entrances, fire lanes, delivery areas) are scheduled during low-traffic periods. Lower-priority zones are scheduled during normal operations. This approach is more complex but minimizes disruption.
Night/weekend phasing performs all work during off-hours when the property is unoccupied. This eliminates operational disruption entirely but increases construction cost (night premiums, reduced production rates) and extends the project timeline.
Communication Planning
Tenant communication is as important as the construction plan itself. Tenants need advance notice of: which areas will be closed, when closures will occur, where alternative parking is available, and how long each phase will last.
Provide notices and place traffic-control devices early enough for tenants, deliveries, emergency access, and property operations to adjust. The property manager and approved traffic plan should set the timing.
Daily communication during construction keeps everyone informed of progress and any schedule changes. A simple daily update — 'Today we're working in Zone B, Zones A and C are open' — prevents confusion and complaints.
Communication Rule
Set the notice period with property management, tenants, emergency access needs, lease obligations, and the approved phasing plan. Communicate confirmed closures early and repeat them as the work approaches.
Maintaining Access
Fire lane access must be maintained at all times — this is a code requirement, not a preference. The phasing plan must ensure fire apparatus can reach all buildings throughout construction. Coordinate with the local fire marshal if access routes are affected.
Delivery access is critical for retail and restaurant tenants. Identify delivery schedules and ensure truck access is maintained or alternative delivery arrangements are made. A tenant who can't receive deliveries may have a lease claim.
Pedestrian safety requires clear, well-marked paths from parking to building entrances. Temporary walkways, barricades, and signage direct pedestrians safely around the work zone. ADA-accessible routes must be maintained throughout construction.
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Frequently Asked Questions
How much longer does phased work take?
The applicable percentage or tolerance must come from the project plans, specifications, testing requirements, and site-specific production plan.
Does phasing cost more?
Phasing, night work, restricted access, and repeated mobilization can reduce production and increase cost. The actual effect must be calculated from the site plan and proposed work sequence.
Who decides the phasing plan?
It's a collaborative decision. The property manager defines operational constraints (what must stay open, when). The contractor defines construction requirements (minimum work area, sequencing logic). Together they develop a plan that satisfies both.