How to Build a Construction Budget That Can Handle Uncertainty: A SoCal Developer’s Playbook
Construction material costs in Southern California are being shaped by a level of policy uncertainty that shows no sign of settling. In February 2026, the Supreme Court struck down a broad swath of tariffs imposed under the International Emergency Economic Powers Act — offering what appeared to be a measure of relief. But the tariffs that matter most to commercial construction in our market, those on steel, aluminum, lumber, and copper, were enacted under separate statutes and remain fully in place. And the administration has already signaled its intent to pursue alternative legal pathways to reimpose the broader tariffs that were invalidated. The result is not resolution. It is a new layer of unpredictability on top of costs that are already elevated.
For the Southern California developers we work with, where margins were already thin before any of this started, that uncertainty is showing up in budgets today. Not as projections, but as line items.
A summer 2025 survey conducted by Allen Matkins and the UCLA Anderson Forecast found that 85 percent of California commercial real estate developers had adopted a more cautious stance on new development due to cost uncertainty and supply chain disruptions. Thirty-six percent reported that they had already delayed or canceled projects entirely.
Based on our experience in ground-up multifamily, mixed-use, and hospitality construction, we have identified four strategies that meaningfully reduce exposure to cost and policy uncertainty without compromising project quality or schedule integrity. Each one depends on a single prerequisite: getting a general contractor (GC) engaged early, under a formal pre-construction agreement, before drawings are complete and the clock is running.
1) Enter a Pre-Construction Agreement Before You Need One
Most developers bring a GC into the process after design is largely complete. While this approach is more costly even in stable cost environments, it’s especially consequential in our current environment.
A pre-construction agreement engages your GC as a collaborative partner during the design and planning phase — before construction drawings are finalized, before subcontractors are bid, and before procurement decisions are made by default rather than by strategy. The fee is modest relative to total project cost, but the value is not.
When a GC is at the table during pre-construction, the work that follows — cost modeling, material exposure analysis, procurement sequencing, subcontractor outreach — can actually influence outcomes. That same work performed after drawings are locked and entitlement is secured is largely reactive. It tells you what something will cost; it cannot change it.
The window between design completion and construction start is where the most consequential budget decisions get made. Developers who have a GC engaged during this window can move procurement commitments ahead of price increases, structure bid packages to take advantage of a softening subcontractor market, and build contingencies that reflect actual risk rather than rough estimates. Those who bring the GC in at the construction agreement stage inherit whatever the market has done in the interim.
The projects we’re seeing stay on budget in 2026 are almost universally ones where the GC was involved early. With regional construction demand expected to tighten in the months ahead, the window to engage on favorable terms is narrower than it looks. Early engagement is what creates the conditions for every strategy in this article to actually work.
2) Understand Which Materials Are Actually Exposed
Not all cost pressures are equal, and treating every line item as equally volatile leads to over-conservatism that can kill feasibility. The materials most directly affected by current cost pressures are steel, aluminum, and lumber, particularly products originating from Canada, Mexico, and China. Electrical components, plumbing fixtures manufactured abroad, and mechanical equipment with imported subcomponents are also carrying elevated lead times and pricing uncertainty.
By contrast, domestic concrete, locally sourced masonry, and certain site work materials have remained comparatively stable. During pre-construction, a competent GC should be able to walk through your project’s material composition and flag which components carry meaningful cost and policy exposure versus those that are largely insulated from it. This exercise alone often reveals that a project’s true risk surface is narrower than headline numbers suggest. It also allows teams to concentrate attention and contingency dollars where they matter most.
This analysis is most useful when it happens early enough to act on. A material exposure map produced two weeks before breaking ground is informational. That same map produced during schematic design — when substitutions are still feasible, when procurement lead times can be accommodated, and when subcontractor conversations can begin — is an actionable planning tool.
3) Front-Load Procurement on Long-Lead and High-Exposure Items
Lead times for imported mechanical equipment, electrical switchgear, elevator components, and specialty glazing have extended significantly over the past two years, and policy uncertainty has added another layer of volatility. Products that once carried 12-to-16-week lead times are now commonly running 20 to 28 weeks or longer.
The most effective hedge against both cost escalation and schedule disruption is early procurement. This is one of the clearest arguments for entering a pre-construction agreement with a GC before design is complete. Issuing purchase orders on critical-path, high-exposure items does not require full construction drawings. It requires identifying those items early enough to make the commitment before costs move again or availability tightens further.
A GC working under a pre-construction agreement can model procurement sequences, identify which items benefit most from early commitment, and structure phased purchasing that preserves flexibility on less-exposed components while locking in pricing where it counts. The cost of carrying a purchased-but-not-yet-installed item is almost always lower than the cost of repricing mid-construction. But that option only exists if the GC is engaged early enough to pursue it.
4) Separate Your Contingency Budget by Risk Type
In a stable cost environment, a single project contingency covering design changes, unforeseen conditions, and cost escalation is manageable. In our current environment, that approach muddles decisions that should be distinct. We often recommend structuring contingencies in three separate buckets: a design and scope contingency for changes that originate within the project team; a site contingency for unforeseen conditions that emerge during construction; and a market contingency specifically sized for external cost volatility, including cost and policy exposure and supply chain disruption. The market contingency is the one most developers are underestimating right now, and it’s also the one most dependent on knowing your specific project.
How large your market contingency should be depends on your project’s material composition and procurement strategy, which is precisely the kind of analysis that happens during pre-construction. For a multifamily project with significant structural steel and imported MEP equipment that has not been procured early, the exposure is meaningfully higher than for a project with primarily domestic concrete and wood framing. Separating these buckets forces an honest conversation about where risk actually lives. It also keeps the market contingency from becoming a slush fund that quietly gets drawn against design changes. A GC who has walked the material exposure analysis with you is the right person to help calibrate those numbers. And remember, that conversation is far more productive before you are committed to a construction contract than after.
The Compounding Benefit of Early GC Involvement
None of the strategies we’ve suggested above are complicated in concept. What makes them difficult in practice is timing. Material exposure analysis only changes outcomes if it happens before design is locked. Early procurement only works if a GC has enough lead time to identify and act on it. Contingency calibration is only accurate if it is grounded in real project data rather than industry averages.
A formal pre-construction agreement is what creates the conditions for all of these strategies to work together. It is not an additional cost so much as a reallocation of attention — moving planning effort to the phase of the project where it has the most leverage over outcomes.
In our experience working on multifamily apartments, mixed-use developments, hotels, and other commercial projects across Southern California, the developers who navigate cost volatility best share one characteristic: they treat pre-construction as the phase where budgets are protected, not just where designs are reviewed. Our current economic environment rewards that discipline, and it will reward it more as regional construction demand accelerates in the months ahead.
If you’re evaluating an active project or getting ready to move into pre-construction, we’d welcome the conversation. Reach out to our team and let’s talk through what these strategies look like for your specific project.