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City of Yes for Economic Opportunity: The Use-Group Rewrite, and What It Breaks

By Ankit Founder, PearlAudit · Last reviewed 2026-07-26 · reviewed quarterly (this topic is still rolling out)

The economic half of City of Yes rewrote the vocabulary the entire Resolution uses to describe what a space may be used for. The old numbered list of use groups was consolidated into ten Roman-numeraled families, and every district's eligibility table was rewritten against them. The map did not move. What moved is the meaning of a use-group number quoted in a lease, a certificate of occupancy, or a decade-old zoning opinion.

Ten families where a long numbered list used to be

Zoning describes permission in two dimensions: where you are, and what you want to do. The first is the district. The second is the use group — a taxonomy that sorts every activity a building can host into named categories, so that a district's rules can grant or withhold permission wholesale rather than activity by activity. That taxonomy is the piece the economic amendment replaced.

The current text carries ten groups, numbered in Roman numerals rather than Arabic. In order they cover agriculture and open uses; residences; community facilities, meaning the educational, religious, health and comparable services; public service facilities and infrastructure; transient accommodations; retail and services; offices and laboratories; recreation, entertainment and assembly spaces; storage; and production uses. Read as a list it looks like tidying. Read against the old taxonomy it is a genuine reorganization: activities that used to sit in separate groups now share one, and the boundaries between commerce, service, and production were redrawn around what the activity is rather than the era it belonged to.

The Resolution's own descriptions carry the logic. Retail and services is defined by goods or services being conveyed directly to consumers. Offices and laboratories is defined by administrative and research workspace. Production uses is defined by the mechanical, physical or chemical transformation of materials into new goods. Those are functional tests, and they are the tests a modern use question gets decided on.

The renumbering is a translation problem

Use-group numbers live almost entirely outside the Resolution. They are written into certificates of occupancy, which describe what a building is legally permitted to contain. They appear in lease use clauses, which define what a tenant may operate. They are quoted in permit applications, in title work, in estoppels, and in the zoning opinions that lenders rely on at closing. Every one of those documents drafted before the rewrite still says exactly what it said. What changed is the table it points into.

This produces a specific and avoidable diligence failure. Someone reads a use-group reference off an old certificate of occupancy, looks the number up in the current text, and reports the result as the building's permitted use. The number is real and the lookup is real, but the two are describing different taxonomies. A correct reading treats a pre-rewrite use-group citation as a historical description that must be translated by identifying the activity it actually referred to, then locating that activity in the current groups — not as an index into today's table.

The same trap runs the other way in leasing. A use clause drafted today against a current group grants a range of activities defined by the current text. If a later amendment reshapes that group, the clause's practical scope moves with it unless the drafting pinned the activity rather than the label. That is a drafting question rather than a zoning one, but the rewrite is what made it live.

Permission is not a yes-or-no field

One structural feature of the eligibility tables is worth stating plainly because summaries routinely flatten it. For a given district and a given use group, the Resolution does not simply say permitted or not permitted. A use can be allowed as of right. It can be allowed only by special permit, which is a discretionary approval with stated findings. It can be allowed by authorization, a lighter discretionary route. It can be allowed only in a community-facility capacity rather than a commercial one. Or it can be excluded outright.

Those distinctions carry very different costs and timelines, and collapsing them into a single permitted flag is how a screening tool produces a confident wrong answer. A use that is available by special permit is genuinely available — to a project that can afford the process and can meet the findings. It is not available to a tenant who wants to open next quarter. Any honest report of a use question names the permission class, not just the outcome.

The eligibility tables also carry conditions in text: floor-area thresholds above which a use changes class, ground-floor or upper-story restrictions, and use-specific carve-outs. Those conditions are where most real answers live, and they are the reason a district-plus-use-group lookup is a starting point rather than a conclusion.

What did not change

The zoning map did not change. A lot in a commercial district before the amendment is in the same commercial district after it. Commercial overlays sit where they sat. Special purpose districts continue to modify the underlying rules exactly as their own chapters provide, and where a special district's text speaks to a use question, it continues to govern over the underlying district's table.

Existing lawful uses did not become unlawful. A use that was permitted when it was established and has operated continuously generally continues under the Resolution's non-conforming-use provisions, whether or not today's table would permit it anew. The reverse is also true and less often noticed: a use the current table permits cannot simply be installed in a building whose certificate of occupancy describes something else. The certificate is its own gate, administered by the buildings department, and zoning permission is a necessary condition for changing it rather than a substitute.

How to check a space against the current text

Start with the activity, described concretely — what will physically happen in the space, who it serves, and how goods or people move through it. That description, not a label inherited from a prior tenant, is what the functional tests in the current group definitions are applied to. Then identify the district and any overlay or special purpose district, since each can change the applicable table. Then read the eligibility entry for that district and group, including its conditions, and note the permission class rather than a yes or no.

Finally, reconcile against the building itself: what the certificate of occupancy says the space is, and whether the intended activity requires changing it. A use question answered from the zoning text alone is half an answer. The half most deals actually turn on is whether the paperwork on the building matches the plan, and that is a records question with a definite answer.

Frequently asked questions

Does an old certificate of occupancy's use group still mean what it says?
It still describes what it described when issued, but the number no longer indexes into the current table. Treat a pre-rewrite use-group citation as a historical description: identify the activity it actually referred to, then locate that activity in the current groups. Reading the old number straight into today's text is the most common error in this area.
Did the use-group rewrite change what my district permits?
Possibly, because every district's eligibility table was rewritten against the new categories, and the categories were reorganized rather than relabelled. The district itself did not change. Whether the permissions attached to it did is answered by reading the current entry for that district and use group, including its conditions.
Is 'permitted' the only outcome a use table reports?
No. A use can be as of right, allowed by special permit, allowed by authorization, allowed only in a community-facility capacity, or not permitted. Those carry very different timelines and costs. A report that collapses them into permitted or not permitted is discarding the part that matters.
Can an existing business be forced to close because its use group moved?
Generally no. A use lawfully established and continuously maintained is addressed by the Resolution's non-conforming-use provisions, which is a separate body of rules from the current eligibility table. Continuity and the scope of the original use both matter, which is why this is a question for counsel on a specific record rather than a lookup.

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Educational content, not legal advice. Zoning Resolution citations refer to the text in force at the review date — verify against the current Resolution and consult licensed professionals before relying on any rule. See our methodology.