This pattern — the entitled-but-unadvanced high-capacity opportunity-site pattern — has a load-bearing finding: an advancement gap. A high-capacity Housing Element opportunity site holds an approved entitlement and continues to read as an active pipeline contribution, yet is operationally un-advanced — building permits have been filed but not issued over a multi-year horizon, and no units are completed. The static pipeline status does not distinguish "entitled and advancing" from "entitled and long-stalled"; the permit-and-completion record shows the latter.

A secondary cross-surface mismatch accompanies it: the entitled project has drifted from the adopted inventory snapshot — it is materially larger than the adopted capacity, and its income mix diverges from the adopted assignment. This inventory-vs-project drift is supporting texture that the same chain surfaces; it is not the core finding.

The condition the pattern names: formally alive but partially stale and operationally un-advanced — with the operationally un-advanced half load-bearing and the partially stale half secondary.

The method reads a single case across temporally distinct surfaces (see methodology.md §Surface-specific interpretation). Each draws on a class of public source; no surface alone is sufficient.

The basic visible form (see methodology.md §Living Implementation Consistency matrix). Row vocabulary: confirmed / weakened / contradicted / unresolved / not yet testable.

The finding-level reading is composite and is deliberately not collapsed to a single value (see object-model.md §Three-layer assessment treatment).

Each signal is source-anchored and assumption-anchored, typed and directional, and in the real run carries confidence and known/inferred/missing status (see data-dictionary.md).

• Project-larger-than-adopted (pipeline-class) — supports/exceeds the capacity-magnitude assumption.
• Income-mix divergence (pipeline / administrative) — weakens the income-tier assumption: the current project's affordability mix diverges from the adopted assignment.
• Entitlement-status ambiguity (administrative) — uncertain / weakens: an approved entitlement whose current status carries an ambiguity in the public record.
• Bounded absence of permit issuance (permit-class) — weakens the advancement assumption. The signal is a bounded absence, not absence in the abstract: it names the source searched (building-permit records at the site), the scope (new-construction permits), the horizon (from filing to the present, a multi-year span), and the expected-but-absent downstream record (permit issuance / construction-document date). Bounding parameters are part of the signal.
• No completion (production-class) — weakens / not-yet-testable: absence from completion records, a well-bounded absence.

Composite. The adopted inventory entry appears formally alive but partially stale and operationally un-advanced — the operationally un-advanced reading load-bearing. The core finding is that advancement and delivery are weakened: the entitlement is approved and the site reads as active pipeline, yet permits were filed years ago and remain un-issued and nothing is completed. The entitlement itself carries a public-record status ambiguity that compounds this.

Two secondary mismatches ride alongside, surfaced by the same chain but not the headline: capacity magnitude is supported (the entitled project is in fact larger than the adopted figure), and the income-tier assignment has drifted from the current project's affordability mix.

The non-obvious value: a progress-report or pipeline-status view would carry this site as so many active adopted units. The chain shows that the units are, in fact, at least one un-issued building permit and several years from any completion signal — the site reads as over-ready relative to its own permit record. (Secondarily, the inventory's unit count and income mix no longer match the current entitled project.)

This is an interpretation under uncertainty, framed as implementation sensitivity. It is not a determination that the site will or will not deliver, that the inventory is unreliable, or that any party is at fault.

Non-prescriptive, actor-typed, basis-cited (see data-dictionary.md). "Candidate," "possible," "may."

• City / inventory-maintenance. Possible candidate: refresh the site's inventory attributes (unit count and income-tier split) to reflect the current entitled project, so progress accounting matches the project on record rather than the older inventory snapshot.
• City + project sponsor. Possible candidate: a status check on what is gating permit issuance (entitlement-status questions, financing, phasing) would clarify whether the capacity should be treated as near-term or longer-horizon.
• Monitoring. Candidate: track permit issuance as a leading delivery indicator rather than relying on a static pipeline flag.

• The entitlement-record ambiguity is flagged, not resolved.
• The cause of the multi-year permit stall is not diagnosed — financing, market conditions, phasing, and entitlement-status questions all remain open. The method surfaces the bounded absence; it does not assert its cause.
• The inventory snapshot predates the current project state, so the unit/income divergence is assumption staleness over time, not error.
• This pattern draws only on core public-record sources; conditions such as infrastructure, financing, and market feasibility would require additional source classes not used here.

The real run from which this pattern is drawn followed the method's provenance discipline: every signal cited its source, retrieval date, and location within the source; the bounded-absence signal cited its bounding parameters. The source classes were the San Francisco Housing Element site inventory, the city development pipeline, building-permit records, and housing-production records.

This appendix abstracts the figures and withholds identifying detail to prevent re-identification of the parcel. As a result, the text here is a demonstration of the method's reasoning, not an independently re-runnable artifact — the full site-level citations are not reproduced. They are held operator-side.

This generalized pattern is derived from a real, fully sourced San Francisco case reviewed for internal planning-validity. Identifying details and full site-level citations are held operator-side because named-site publication has not been authorized.

This appendix is the concrete illustration of the chain that methodology.md, object-model.md, and data-dictionary.md describe: the four-surface reading, the consistency matrix, the bounded-absence signal, the three-layer assessment, and the composite finding — exercised once, on a real site, under uncertainty discipline. One worked pattern; not a general proof.