Zoning › Missouri › Crawford County › Sullivan

Sullivan, MO Zoning

6 districts. 2 overlays.
This profile is an earlier edition — some fields may be incomplete. An updated profile is in progress.

Overview

Worth knowing
  • Small town context (pop. ~6,200) with simplified zoning structure
  • Historic downtown preservation focus with design review overlay authority
  • Two-tier residential gradient (R-1/R-2 single-family + R-3 multi-family) without state preemption requirements

+ 5 more in Quirks & notes

Districts

res_sf 2com 2res_mf 1ind 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-1Single-Family Residential (Low Density)res_sf8,500 sf[4]35 ft[5]0.45[6]0.4[7]5.1[8]2[9]25[1] / 10[2] / 20[3]
R-2Single-Family Residential (Medium Density)res_sf6,500 sf[13]35 ft[14]0.5[15]0.5[16]6.7[17]2[18]20[10] / 8[11] / 15[12]
R-3Multi-Family Residentialres_mf12,000 sf[22]45 ft[23]0.65[24]0.8[25]15.2[26]1.5[27]25[19] / 15[20] / 25[21]
C-1Neighborhood Commercialcom3,000 sf35 ft0.7[30]0.75[31]—3[32]15 / 0[28] / 0[29]
C-2General Commercialcom5,000 sf45 ft0.75[35]1[36]—2.5[37]10 / 0[33] / 0[34]
M-1Light Industrialind10,000 sf40 ft———0.15[41]25[38] / 20[39] / 20[40]

Confidence: confirmed partial under review not found

Overlays

HD
Historic District Overlay
HP
Chapter 400-2(b)

Designated historic areas within city limits; mapped in Zoning Map Appendix

coverageApproximately 2-4 blocks in downtown core (small town context)
design_reviewRequired for exterior alterations (siding, windows, roofing, materials, paint)
new_constructionMust conform to design guidelines and architectural compatibility standards
demolitionSubject to Historic Preservation Commission approval; alternative reuse options explored
accessory_structuresSubject to design standards
signageExterior and projecting signage requires design review approval
FPO
Floodplain Overlay District
FP
Chapter 400-2(c)

FEMA-mapped Special Flood Hazard Area (SFHA) and 100-year floodplain boundary; mapped in FIRM for Crawford County

coverageTributary drainage areas; approximately 6-9% of city land area
minimum_freeboard1 foot above Base Flood Elevation (Missouri standard)
no_rise_certificationRequired for development affecting flood capacity
substantial_improvement_threshold50% of market value triggers elevation or floodproofing requirement
wet_floodproofingNon-residential uses with openings, vents, utility protection permitted below BFE + 1 foot
dry_floodproofingNot permitted for residential; elevation to BFE + freeboard required for habitable space
elevation_certificateRequired and filed with Building Official

Adopted building codes

Local adoption

IBC
Local adoption
IRC
2018
NEC
2017
IFC
Local
IECC (Residential)
Local
IECC (Commercial)
Local

Click a code label to open its state-by-state adoption atlas.

Quirks & notes

  • Small town context (pop. ~6,200) with simplified zoning structure
  • Historic downtown preservation focus with design review overlay authority
  • Two-tier residential gradient (R-1/R-2 single-family + R-3 multi-family) without state preemption requirements
  • Lot-coverage and FAR controls not explicitly documented; presumed controlled via setback requirements
  • No explicit transparency, ground-floor activation, or street-wall requirements for commercial districts
  • No accessory dwelling unit (ADU) provisions documented; not typical for small Missouri cities
  • Floodplain overlay triggers elevation and freeboard requirements affecting basement development
  • No zoning amendments or code rewrites documented as active or pending (as of April 8, 2026)

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.

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Setbacks (F / S / R)
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Parking
— /unit
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Max density
— du/ac
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Min lot size
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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

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Research status

Data quality

40%completeness2 confirmed18 partial24 inferred
Documented gaps
  • All principal residential, commercial, and industrial dimensional standards (lot area, width, setbacks, max height, FAR) confirmed to exist in Chapter 400 but specific numeric values NOT directly indexed from ordinance text
  • Historic District and Floodplain Overlay existence confirmed; specific design standards and flood thresholds inferred from state requirements and regional practice
  • Parking standards and sign regulations presumed in Chapter 400 but not indexed
  • PUD minimum size and approval process inferred from standard Missouri practice; specific ordinance language not indexed
  • Lot coverage and FAR standards not explicitly stated; values inferred from lot size controls
  • Commercial and industrial conditional use matrices not documented

Known issues

schema:v1-legacypriority:lowdata:gaps-present

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