Entitlement Timeline Calculator

This calculator models the phases that most commonly run in parallel with earlier approvals in practice -- utility plan review and building permit review can often start once zoning and plat approvals are far enough along, without waiting for those earlier phases to fully close out. Pre-application, environmental review, zoning, and plat approval are modeled as strictly sequential, since each of those typically depends on a decision or document from the phase before it.

Its declared range (up to 36 months) is far wider than any other phase, since environmental review timelines vary enormously depending on scope -- a categorical exclusion can clear in weeks, while a full Environmental Impact Statement with extensive public comment and agency coordination can take years. When environmental review runs long, it tends to dominate the overall Effective Timeline more than any single other phase in this model.

The time saved scales with how many months are in the two phases it applies to (Utility Approvals plus Building Permit) -- a higher Concurrent Processing % applied to two short phases saves less absolute time than the same percentage applied to two long phases. Months Saved (Concurrent) is calculated as that percentage times the sum of those two phase durations.

It's this calculator's default illustrative assumption, not a guarantee for any specific jurisdiction or project. How much utility and permit review can genuinely overlap with earlier approvals depends on your local planning department's process, whether your utility provider allows plan submission before final plat recording, and how proactively your project team pursues parallel-track approvals. Confirm what's realistically achievable with your civil engineer and local planning staff.

It doesn't model appeals or legal challenges to an approval, a resubmittal cycle if an application is rejected and must be revised and refiled, seasonal hearing-calendar gaps (some jurisdictions' planning commissions meet monthly or less), or site-specific complications like wetland delineation disputes or utility capacity upgrades. Real entitlement timelines commonly run longer than an optimistic straight-line estimate for exactly these reasons.