Governing Framework Overview
Your house sits under four stacked layers of regulation. When they conflict, the most restrictive controls (Appendix G §7(d)(2)g).
Layer 1 — State enabling law
Texas Local Government Code (zoning authority, Ch. 211) and the Open Meetings Act (Gov't Code §551, which governs how the Historic Preservation Commission must meet and vote). These matter mostly as background — and as procedural leverage: commission action taken without proper posting/quorum is voidable.
Layer 2 — The Historic Preservation Ordinance
Historic Preservation Ordinance (Appendix G) (Ord. 91-73, 1991, as amended through 2025). Creates the Commission, the Certificate of Appropriateness Process, the Demolition and Economic Hardship procedure, Ordinary Maintenance Exemption, Minor Exterior Alterations (Staff-Level), penalties, and Appeals to City Council.
Layer 3 — Zoning overlays (where the teeth are)
- Zoning Sec 39 - HL Historic Landmark Overlay — the "H"/HL overlay mechanism. Your district was designated through it (Ord. 93-58, 1993). Each designation ordinance adopts district-specific criteria as binding zoning conditions.
- Zoning Sec 28A - HGT Township District — separate zoning district covering the Historic Grapevine Township area.
Layer 4 — Design standards applied in review
- College Street Preservation Criteria (Ord 93-58) — your district's own criteria (Exhibit B of the ordinance — these are law, not guidance)
- Secretary of the Interior Standards — the Commission must follow these for HL-overlay properties (Appendix G §7)
- Grapevine Pattern Book (2025) — adopted into Appendix G §7(d)(2) in 2025; binding for residential work Township-wide
- Design Guidelines Manual — the interpretive manual the Commission and staff use day-to-day
Who decides what
| Decision | Decider | Timeline | Authority |
|---|---|---|---|
| Is it "ordinary maintenance"? | Director of Community Development | informal | App. G §6 |
| Minor exterior alteration CA | City staff | 5 working days | App. G §8 |
| Standard CA (incl. all new construction, additions) | Historic Preservation Commission | ≤60 days, public hearing | App. G §7 |
| Demolition CA | Commission | ≤60 days + hardship track | App. G §9 |
| Appeal of any CA/hardship denial | City Council | 30-day window to file | App. G §13 |
| New/changed district designation | Council (after HPC + P&Z) | months | App. G §5 |
Practical hierarchy for a College Street project
- Check Ordinary Maintenance Exemption — if yes, no process at all.
- Check Minor Exterior Alterations (Staff-Level) — if it fits, 5-day staff approval.
- Otherwise: full Certificate of Appropriateness Process before the Commission, judged against College Street criteria + SOI Standards + Pattern Book + Sec 39/28A dimensional rules — most restrictive wins.
Sources: Source Index §Municode, §Ord-93-58.