Investors often use "variance" and "special permit" interchangeably, but they are fundamentally different tools that operate under different legal standards, go before different decision-makers, and have very different odds of approval. Confusing them leads to bad underwriting, miscommunication with attorneys, and projects that collapse because the investor pursued the wrong approval path.
The Core Distinction
A variance is relief from a specific dimensional or use rule in the zoning code because strict application of that rule would cause an unusual hardship — typically due to a peculiar physical characteristic of the land itself. A variance is a departure from what the code says. The applicant is asking the board to acknowledge that the normal rule does not fit this particular situation.
A special use permit (also called a special permit, conditional use permit, or special exception depending on the jurisdiction) is permission to operate a use that the zoning code already anticipates and allows — but only after review confirms that the specific proposal meets defined criteria. The applicant is not asking for an exception; the use is written into the code as permissible. The question is whether this particular project, in this particular location, meets the conditions the code requires.
In plain terms: a variance changes the rules for your property; a special permit applies the rules that already exist for conditional uses.
Types of Variances
Variances come in two forms, and the distinction between them matters enormously for approval odds.
Area (Dimensional) Variances
An area variance is relief from a dimensional standard — a setback, a height limit, a minimum lot size, a lot coverage percentage. Area variances are the more common and more achievable type. The legal standard is typically whether strict application of the dimensional rule would cause practical difficulty. Courts and boards apply this standard with some flexibility: if a parcel has an unusual shape or topography that prevents compliance with a setback requirement without sacrificing buildable area, an area variance is a reasonable ask.
Use Variances
A use variance is relief from a use restriction — permission to operate a use that the code does not allow in the district at all. Use variances carry a much higher legal burden: the applicant must typically show that the land cannot yield a reasonable return under any permitted use, that the hardship is unique to this parcel and not self-created, and that the variance will not alter the essential character of the neighborhood. This is a demanding standard. Use variances are rarely granted and are frequently challenged on appeal. Many states (New York among them) require proof of unnecessary hardship, not just practical difficulty, for use variances.
The Special Permit Standard
Special permits do not require a showing of hardship. The applicant must demonstrate that the proposed use meets the criteria listed in the code for that use type. Typical criteria include:
- The use is compatible with surrounding uses.
- Traffic generated by the use will not unduly burden adjacent streets.
- Adequate parking and loading facilities exist.
- Noise, lighting, and operational hours will not adversely affect neighboring properties.
- The use is consistent with the town's comprehensive plan.
Because the criteria are specific and the board's role is to check whether the criteria are met (not to exercise pure discretion), a well-prepared special permit application with supportive evidence has a high approval rate. A variance application, by contrast, asks the board to deviate from the written law, which triggers more political resistance and closer legal scrutiny.
Who Decides: ZBA vs. Planning Board
In most jurisdictions, variances are decided by the Zoning Board of Appeals (ZBA) — a quasi-judicial body whose job is to hear appeals from zoning decisions and grant relief from strict application of the code where legal standards are met. The ZBA applies a legal standard; its decisions are reviewable by courts for compliance with that standard.
Special permits may go to the ZBA, the planning board, or both, depending on the jurisdiction and the use type. Many states assign special permits for higher-impact uses (cell towers, large retail, certain industrial uses) to the planning board, while assigning simpler special permits (home occupations, small accessory uses) to the ZBA or even to the building official as an administrative approval.
Knowing which body has jurisdiction over your application matters for preparation: planning boards generally hold more formal hearings with traffic studies, site plans, and public comment periods. ZBA hearings for area variances are often shorter and more focused on the physical hardship narrative.
Which Is Harder to Get?
For investors, the practical ranking is:
- Special permit / conditional use permit: Achievable with a well-prepared application if the use is listed in the code and you can satisfy the criteria. Approval rates in well-documented cases are high.
- Area variance: Achievable, but requires a genuine dimensional hardship tied to the land. Not automatic. Boards push back on applications that feel like convenience requests rather than genuine hardship.
- Use variance: Very difficult. Avoid building a project that depends on a use variance unless you have a strong legal record and are prepared for the possibility of denial and appeal.
What Investors Should Know
Before purchasing a property that requires any discretionary approval, ask three questions. First, is the required approval a special permit for a contemplated use, or a variance from a prohibited use? Second, how many of these approvals has the board granted in the past three years, and for what types of projects? Third, what conditions have been attached to prior approvals that might affect how you can operate the property if approved?
Approvals with conditions attached — hours of operation, parking minimums, screening requirements, noise limits — run with the land and bind future owners. A property that looks clean on its face may have a special permit with conditions that significantly constrain its use. Pull the approval records, not just the zoning map.