Overview
Worth knowing
- Historic wine country preservation focus (established 1837) with German vernacular architecture dominance
- Historic overlay likely primary regulatory mechanism rather than density/parking standards in downtown core
- Height differentiation R-1/R-2 (35 ft) to R-3 (45 ft) reflects graduated density allowing multifamily near downtown
+ 5 more in Quirks & notes
Districts
ind 2res_sf 1res_th 1res_mf 1cbd 1com 1
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| R-1 | Single-Family Residential | res_sf | 9,000 sf | 35 ft | 0.45 | 0.62 | 5 | 1.75 | 22 / 6.5 / 15 |
| R-2 | Two-Family Residential | res_th | 7,200 sf | 35 ft | 0.55 | 0.88 | 7.5 | 1.75 | 17 / 5 / 15 |
| R-3 | Multi-Family Residential | res_mf | 7,200 sf | 45 ft | 0.65 | 1.35 | 18 | 1.12 | 15 / 10 / 15 |
| C-1 | Central Business / Downtown Commercial | cbd | 5,000 sf | 40 ft | 0.8 | 1.25 | — | 3 | 0 / 0 / 0 |
| C-2 | General Commercial | com | 10,000 sf | 50 ft | 0.75 | 1.75 | — | 2.5 | 10 / 0 / 0 |
| I-1 | Light Industrial | ind | 20,000 sf | 50 ft | — | — | — | 0.15 | 30 / 20 / 20 |
| I-2 | Heavy Industrial | ind | 40,000 sf | 60 ft | — | — | — | 0.1 | 50 / 50 / 50 |
Confidence: confirmed partial under review not found
Overlays
HP
Historic Preservation Overlay
HPHermann wine country historic district designation (municipal determination); German-heritage architecture core established 1837+
| coverage | Downtown historic core and adjacent residential neighborhoods reflecting 1837+ German-heritage architecture |
|---|---|
| design_review | Required for exterior alterations, additions, demolition |
| architectural_standards | German vernacular and 19th-century character emphasis |
| restrictions | Roofline, window, and door replacement restrictions |
| demolition | Subject to design review approval; alternative reuse options explored |
| accessory_structures | Subject to design standards |
FPO
Floodplain Overlay
FPFEMA Flood Insurance Rate Map (FIRM) Zone A/AE (100-year floodplain); Missouri River proximity
| coverage | Missouri River riparian corridor and mapped 100-year flood zones; confirmed present via regional hydrology |
|---|---|
| elevation | Elevation requirements for structures in mapped floodplain (typically lowest finished floor at or above Base Flood Elevation) |
| wet_floodproofing | Wet floodproofing standards for non-residential uses |
| cumulative_impact | Development impact analysis for fill and encroachment |
| basement_restriction | May preclude basements and underground parking |
ENV
Environmental / Wetlands Overlay (Potential)
ENVState-protected wetlands and tributary streams flowing to Missouri River
| buffers | 25-50 foot buffer zones around wetlands |
|---|---|
| restrictions | No-fill restrictions; mitigation required for unavoidable impacts |
Adopted building codes
Local adoption
Click a code label to open its state-by-state adoption atlas.
Quirks & notes
- Historic wine country preservation focus (established 1837) with German vernacular architecture dominance
- Historic overlay likely primary regulatory mechanism rather than density/parking standards in downtown core
- Height differentiation R-1/R-2 (35 ft) to R-3 (45 ft) reflects graduated density allowing multifamily near downtown
- Missouri River floodplain constraint may limit basement development and underground parking in significant portions of city
- R-1 minimum lot area (9,000 sf) vs. R-2/R-3 (7,200 sf) represents moderate density gradient without state preemption
- No state residential preemptions; full local control over density, height, parking, and ADU permissions
- Small municipality scale (pop. ~2,800) suggests lean Chapter 420 focused on historic preservation and floodplain management
- Wine tourism and mixed-use incentive; C-1 likely permits wine tasting rooms, bed-and-breakfast inns, residential-over-retail
Formulas
Definitions
- height
- Grade to highest point of structure
- lot_coverage
- Building footprint / lot area. Principal + accessory.
- far
- Gross floor area / lot area
- du_ac
- Dwelling units per gross acre
- impervious_cover
- setback_front
- Front property line to nearest building face
- setback_side
- Side property line to nearest building face
- setback_rear
- Rear property line to nearest building face
- parking
- Spaces per dwelling unit unless noted
Capacity calculations
- max_footprint_sf
lot_area_sf * lot_coverage- max_gfa_sf
lot_area_sf * far- max_units_from_density
lot_area_sf * du_ac / 43560- buildable_width_ft
lot_width_ft - setback_side_ft * 2- buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_rear_ft- parking_required
units * parking
Massing explorer
Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.
Sort by
Max height
— ft
——
Floor area ratio
—
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Lot coverage
—%
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Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
Copy zoning profile
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| District | Category | Height | FAR | Coverage | Setbacks | Parking | Density | Min lot | Overlays |
|---|
Research status
Data quality
55%completeness9 confirmed31 partial19 inferred
Documented gaps
- Specific residential (R-1, R-2, R-3) lot coverage, FAR, and DU/AC standards require Chapter 420 verification
- Commercial district (C-1, C-2) height limits, FAR, and lot coverage specifications require code table review
- Industrial district (I-1, I-2) permitted use lists and complete setback requirements pending Chapter 420 review
- Historic district overlay geographic extent and specific design standards pending code review
- Floodplain overlay development standards (elevation requirements, cumulative impact thresholds) pending county review
- Environmental/wetlands buffer requirements and presence confirmation pending GIS verification
- Parking minimum ratios and any shared parking provisions require code verification
- Wine production facility classification and permitted uses in I-1 zone (inferred from historic context)
Known issues
schema:v1-legacypriority:lowdata:gaps-present
Other cities in this state
Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.