Zoning › Ohio › Butler County › Middletown

Middletown, OH Zoning

Euclidean-zoning. 24 districts · 6 overlays · 4 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
letter-code
Naming convention by category
residentialR-1 (Suburban), R-2 (Low-Density), R-3 (Medium-Density), R-4 (Attached Residential) — letter+number index in DETACHED RESIDENTIAL DISTRICTS group (R-1/R-2/R-3) and a separate ATTACHED RESIDENTIAL DISTRICT (R-4) per Table 1204-4. Numbers index intensity (R-1 = lowest density / largest lot, R-3 = highest detached density). R-4 is a different building-form regime (attached / multi-family) with per-dwelling-unit lot sizing.
officeO-1 (Office District) and O-2 (Office Park District) — abbreviation-based, not density-encoded.
businessB-1 (Neighborhood Business), B-2 (Community Business), B-3 (General Business) — letter+number intensity index (B-1 lowest intensity, B-3 highest).
business_centerBC parent district with BC-I (Interchange), BC-H (Hub), BC-O (Office), BC-R (Residential), BC-F (Flex) subdistricts — mixed-use I-75 interchange district at 5-acre (217,800 sf) minimum site area.
urban_coreUC parent district with UC-C (Central) and UC-S (Support) subdistricts — downtown form-leaning: 0–15 ft front setback range, no min lot/coverage caps, no side/rear setbacks. Note PDF labels US-S in §1204.07(b)(11) text but Table 1204-5 + 1204-2 use UC-S — treating UC-S as canonical.
industrialI-1 (Industrial Park) and I-2 (General Industrial) — letter+number intensity index.
public_institutionalPI (Public and Institutional District).
specialPD (Planned Development District) — minimum site area 5 acres unless 'unique situation' shown; no minimum or maximum lot/setback/density at the district level per §1204.07(b)(15)(xii).
overlayH-O (Hillside Overlay District) — applies to areas with ≥10% slope per §1204.07(b)(16)(i); base zoning governs uses with overlay-specific erosion / viewshed / drainage standards layered on top.

Middletown's 2018 nomenclature recodification (Table 1204-2) consolidates and clarifies prior district names without dramatically changing dimensional standards in the residential and standard nonresidential districts. The 2018 transition introduced the explicit BC parent district + 5 subdistricts, formalized UC-C/UC-S as subdistricts under UC, and renamed H (Hillside Supplemental) → H-O (Hillside Overlay) and P (Use Modified Supplemental) → PD (Planned Development). The PDF in §1204.07(b)(11) text refers to 'US-S' as a typo for UC-S; Table 1204-5 and Table 1204-2 use UC-S. The downtown UC-C subdistrict is form-leaning (0 ft front setback default, 70%-width-of-lot building facade requirement, no side/rear setbacks, no max lot coverage cap) — euclidean classification is anchored to the majority of districts (R / O / B / I / PI / PD), not the downtown form-leaning subdistricts. Originally adopted under Ord 4886 (1968-12-27); most recent recorded amendment Ord O2020-47 (2020-10-06).

Worth knowing
  • B-1 / B-2 use-specific maximum principal-building floor area caps: B-1 = 5,000 sf, B-2 = 25,000 sf (both exclude back-of-house: storage, bathrooms, utilities, preparation per §1204.10(c)(4)(A)-(B)). This is a use-intensity cap layered on top of district dimensional standards — unusual for a non-form-based commercial district. B-3 has no equivalent cap. — [c§Development Code §1204.10(c)(4)(A)-(B)]
  • UC-C principal-building façade-width form provision: building façade must be ≥70% of lot width per §1204.10(c)(3). This is a form-based street-wall requirement applied via the otherwise-Euclidean code — the principal reason UC-C is classified as a 'downtown form-leaning' subdistrict. — [c§Development Code §1204.10(c)(3)]
  • Residential 30% front-yard impervious-surface cap (§1204.10(b)(4)) — limits driveway + walkways + sidewalks in the front yard regardless of total lot impervious surface. Affects single-loaded suburban product placement; no equivalent rear-yard or total-lot cap in code. — [c§Development Code §1204.10(b)(4)]

+ 7 more in Quirks & notes

Districts

res_mf 6com 6res_sf 4off 3ind 3spec 2
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-1Suburban Residential Districtres_sf30,000 sf[4]35 ft[5]——1.452[6]50[1] / 10[2] / 50[3]
R-2Low-Density Residential Districtres_sf18,000 sf[10]35 ft[11]——2.422[12]40[7] / 8[8] / 50[9]
R-3Medium-Density Residential Districtres_sf13,000 sf[16]35 ft[17]——3.352[18]35[13] / 7[14] / 40[15]
R-4-SFDAttached Residential District (Single-Family Dwelling)res_sf9,000 sf[22]35 ft[23]———2[24]30[19] / 6[20] / 30[21]
R-4-2FAttached Residential District (Two-Family Dwelling)res_mf11,000 sf[28]35 ft[29]———2[30]30[25] / 6[26] / 30[27]
R-4-3FAttached Residential District (Three-Family Dwelling)res_mf13,000 sf[34]35 ft[35]———2[36]30[31] / 6[32] / 30[33]
R-4-MF4Attached Residential District (Multi-Family, 4 dwelling units)res_mf15,000 sf[40]35 ft[41]———1.5[42]30[37] / 6[38] / 30[39]
R-4-MF5+Attached Residential District (Multi-Family, 5+ dwelling units)res_mf4,000 sf[46]35 ft[47]——10.891.5[48]30[43] / 6[44] / 30[45]
O-1Office Districtoff10,000 sf[52]40 ft[53]———2.5[54]20[49] / 10[50] / 25[51]
O-2Office Park Districtoff30,000 sf[58]40 ft[59]———2.5[60]35[55] / 10[56] / 25[57]
B-1Neighborhood Business Districtcom5,000 sf[64]35 ft[65]———3.33[66]25[61] / 15[62] / 25[63]
B-2Community Business Districtcom10,000 sf[70]45 ft[71]———3.33[72]35[67] / 20[68] / 30[69]
B-3General Business Districtcom—75 ft[76]———3.33[77]10[73] / 10[74] / 20[75]
BC-IBusiness Center — Interchange Subdistrictcom217,800 sf[79]45 ft[80]————20[78] / — / —
BC-HBusiness Center — Hub Subdistrictcom217,800 sf[82]90 ft[83]————10[81] / — / —
BC-OBusiness Center — Office Subdistrictoff217,800 sf[85]90 ft[86]————20[84] / — / —
BC-RBusiness Center — Residential Subdistrictres_mf217,800 sf[88]60 ft[89]———1.5[90]20[87] / — / —
BC-FBusiness Center — Flex Subdistrictind217,800 sf[92]45 ft[93]————20[91] / — / —
UC-CUrban Core — Central Subdistrictcom—60 ft[95]————0[94] / — / —
UC-SUrban Core — Support Subdistrictres_mf—40 ft[97]————0[96] / — / —
I-1Industrial Park Districtind10,000 sf[101]50 ft[102]———3.33[103]25[98] / 10[99] / 15[100]
I-2General Industrial Districtind5,000 sf[107]50 ft[108]———3.33[109]20[104] / 10[105] / 15[106]
PIPublic and Institutional Districtspec—60 ft[113]————20[110] / 10[111] / 30[112]
PDPlanned Development Districtspec——————— / — / —

Confidence: confirmed partial under review not found

Overlays

H-O
Hillside Overlay District
ENV
Development Code §1204.07(b)(16) Hillside Overlay District; replaces prior 'H Hillside Supplemental District' per Table 1204-2 (effective 2018-03-01)

Areas of the City with a total slope of 10% or more as designated on the Official Zoning Map. Purpose: protect from soil erosion, slippage, landslides, viewshed degradation.

PD
Planned Development District
SPEC
Development Code §1204.07(b)(15) Planned Development District; replaces prior 'P Use Modified Supplemental District' per Table 1204-2 (effective 2018-03-01)

May be established in any area of the City following review and approval per §1226.04 + all other applicable code sections. Minimum site area = 5 acres unless 'unique situation' demonstrated by applicant.

UC
Urban Core (UC parent + UC-C / UC-S subdistricts)
SPEC
Development Code §1204.07(b)(11) Urban Core District; Table 1204-5 dimensional standards; §1204.10(c)(3) UC-C building-width form provision

Downtown Middletown civic/cultural center bounded as shown on the Official Zoning Map. UC parent district with two subdistricts: UC-C (Central — mixed-use high-intensity retail/service/entertainment/office/residential) and UC-S (Support — office/institutional/residential transition to surrounding neighborhoods).

ATZ
Airport Turning Zone (Hook Field MWO)
AP
Development Code §1204.10(a) Airport Turning Zone Restrictions

Airport Turning Zone designated on drawing 'Airport Turning Zone' on file in office of Director of Public Service, dated 1962-12-18 (with subsequent revisions). Covers Hook Field Municipal Airport (MWO) influence area.

HD/HL
Historic Districts and Historic Landmarks
HP
Development Code §1204.05 Historic Districts and Historic Landmarks (gateway); Chapter 1212 Historic Preservation; §1226.08 Certificate of Appropriateness procedure

Specific lots / districts designated by City Council ordinance per Chapter 1212.02 (Designation of a Historic Landmark or Historic District). Per §1204.05, historic-designated lots are NOT identified on the zoning map as a zoning district — they overlay independently.

FP
Floodplain (delegated to non-zoning Codified Ordinance)
FP
Floodplain regulation is NOT a district within Chapter 1204; FEMA NFIP compliance is presumed via a separate Codified Ordinance chapter outside the Development Code (not extracted this pass).

Properties within FEMA 100-year floodplain (SFHA Zone A / AE); Great Miami River and tributaries bisect the City.

State preemptions

OH-Art-XVIII-Home-Ruleapplies
Qualifying condition
Middletown is a municipal corporation (incorporated city, pop ~49,000, charter city per code §1202.03). Ohio Const. Art. XVIII §3 grants all municipalities home-rule authority over local self-government including zoning. As a charter city, Middletown derives this authority directly from the Constitution and its own Charter; ORC Chapter 713 attaches only where it codifies a 'general law' under the Canton v. State (2002) four-part test.
Effect
Meta-preemption framing. Middletown's Development Code (Chapter 1204 et seq.) is a power of local self-government. For a state statute to preempt the Development Code, it must be a 'general law' AND address a matter not purely local, OR expressly override in a state-interest field. Preemption burden sits on the state.
OH-713.15applies
Qualifying condition
ORC §713.15 (statewide nonconforming-use floor: discontinuance period 6 months to 24 months floor, with default 24 months) is treated by the Ohio preemptions.md framing as a substantive general-law floor that reaches charter cities, not merely a procedural Chapter 713 provision. Middletown's Development Code Chapter 1226 + 1202.07 (interpretation/conflict) does not strip grandfather rights of pre-existing lawful uses; expected compliance with the §713.15 substantive floor (lawful pre-existing uses continue; discontinuance amortization not shorter than 6 months).
Effect
Local nonconforming-use amortization provisions must respect §713.15 substantive floors. Specific local discontinuance period not extracted this pass — captured as expected compliance based on the statutory floor; direct §1226.x extraction is a quality gap.
OH-5104.054applies
Qualifying condition
Middletown is a municipal corporation; ORC §5104.054 (HB 33, effective Jan 1 2025) applies uniformly to cities, villages, townships, and counties regardless of charter status. Type B family child care homes (1–6 children in caregiver's personal residence) must be permitted as-of-right in all districts where residential uses are permitted; no CUP or special exception may be required.
Effect
Development Code Table 1204-3 (Principally Permitted Uses) Household Living provisions in R-1, R-2, R-3, R-4, BC-R, UC-C (where residential is permitted), UC-S, and PI (where residential is permitted) must permit Type B family child care homes by-right. Any code language requiring conditional-use or special-exception treatment in these districts is legally unenforceable post-2025-01-01.
OH-3781.184applies
Qualifying condition
ORC §3781.184 incorporates 42 U.S.C. §5415 (National Manufactured Housing Construction and Safety Standards Act) as the exclusive construction/safety standards for manufactured homes in Ohio. Applies statewide regardless of charter status, including Middletown as a charter municipal corporation.
Effect
Middletown Development Code cannot impose construction standards on manufactured homes (roof pitch, wall thickness, materials) that conflict with federal HUD standards. Placement / zoning discretion for permanently sited manufactured homes remains local for municipal corporations (§519.212 township-only carve-out does not extend to cities).
Non-applicable laws (4)
OH-713-Municipal-Zoning-Enablingunder_review
Qualifying condition
Middletown is a charter municipal corporation (per code §1202.03 self-reference to 'City of Middletown Charter'). ORC Chapter 713 (§§713.06–713.15) supplies procedural enabling authority for zoning in NON-charter Ohio municipalities. Per Ohio preemptions.md framing, charter cities are not procedurally bound by Chapter 713 except where it codifies a 'general law' (e.g., §713.15 nonconforming-use floor, evaluated separately).
Effect
Chapter 713 procedural floors (e.g., §713.12 30-day public hearing notice, §713.11 BZA structure) do not bind Middletown procedurally; the Charter and Development Code Chapter 1226 (Administration) govern procedure. §713.15 (nonconforming-use floor) is evaluated as a substantive general-law floor in the next entry.
OH-519.212-Township-MH-Zoningunder_review
Qualifying condition
ORC §519.212 (permanently sited manufactured home zoning preemption) applies to TOWNSHIPS only — does NOT extend to municipal corporations. Middletown is a municipal corporation. Counterpart §303.212 applies to counties (unincorporated territory), also not applicable.
Effect
Middletown retains full zoning discretion over manufactured-home placement under home rule + charter. No state-level by-right requirement reaches the Development Code for permanently sited manufactured homes.
OH-519.21-Township-Agriculturalunder_review
Qualifying condition
ORC §519.21 agricultural preemption applies to TOWNSHIPS only; §303.21 to counties. Middletown is a municipal corporation. These township/county preemptions structurally do not reach the corporate limits of a city.
Effect
Middletown retains full zoning discretion over agricultural uses within corporate limits. Code §1206.01(b)(8) explicitly references gardens/crops 'in any yard without a permit' as a residential accessory use — local choice, not a state-preemption requirement.
OH-STR-preemptionunder_review
Qualifying condition
Ohio SB 104 / HB 109 (136th GA) short-term-rental preemption bills are PENDING in committee as of May 2026 — not enacted. No statewide STR zoning preemption exists.
Effect
No state preemption. Middletown may license, zone, cap, or restrict STRs via its Development Code or separate Codified Ordinance.

Adopted building codes

Statewide

IBC
2021
IRC
2018
NEC
2023
IFC
2021
IECC (Residential)
2018
IECC (Commercial)
2021

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

Quirks & notes

  • B-1 / B-2 use-specific maximum principal-building floor area caps: B-1 = 5,000 sf, B-2 = 25,000 sf (both exclude back-of-house: storage, bathrooms, utilities, preparation per §1204.10(c)(4)(A)-(B)). This is a use-intensity cap layered on top of district dimensional standards — unusual for a non-form-based commercial district. B-3 has no equivalent cap. — [c§Development Code §1204.10(c)(4)(A)-(B)]
  • UC-C principal-building façade-width form provision: building façade must be ≥70% of lot width per §1204.10(c)(3). This is a form-based street-wall requirement applied via the otherwise-Euclidean code — the principal reason UC-C is classified as a 'downtown form-leaning' subdistrict. — [c§Development Code §1204.10(c)(3)]
  • Residential 30% front-yard impervious-surface cap (§1204.10(b)(4)) — limits driveway + walkways + sidewalks in the front yard regardless of total lot impervious surface. Affects single-loaded suburban product placement; no equivalent rear-yard or total-lot cap in code. — [c§Development Code §1204.10(b)(4)]
  • I-1 / I-2 max height of 50 ft applies ONLY within 200 ft of a residential district per Table 1204-5 Note [6]; otherwise height is 'as approved by the Middletown Fire Department' — effectively no code-level max height, deferred to fire-access standard. Modeling tall-building feasibility at I-1/I-2 sites >200 ft from residential is bounded only by the fire department's reach standard, not the Development Code. — [c§Development Code Table 1204-5 Note [6]]
  • B-1 / B-2 / B-3 / PI side and rear setbacks required ONLY when the lot is adjacent to a residential zoning district per Table 1204-5 Note [3]. When the abutting lot is not residential, side and rear setbacks are effectively 0 ft — a significant capacity uplift over typical Euclidean commercial. Front setback remains required regardless. — [c§Development Code Table 1204-5 Note [3]]
  • O-1 / O-2 front setback INCREASES from 20/35 ft to 50 ft when front yard abuts (including across the street from) any R-1/R-2/R-3/R-4 district per Table 1204-5 Note [1]; O-2 rear setback similarly increases to 50 ft when abutting any R district per Note [2]. Multifamily-adjacent office buildings have substantially larger setbacks than non-residential-adjacent office buildings — a buffer-zone provision baked into the dimensional table. — [c§Development Code Table 1204-5 Notes [1] and [2]]
  • R-1 / R-2 / R-3 use exceptionally LARGE lot/depth standards relative to typical Ohio suburban code: R-1 = 30,000 sf / 125 ft width / 225 ft depth / 50 ft front + 50 ft rear setbacks. Implied max density is only ~1.45 du/ac in R-1 — among the most restrictive in the Cincinnati metro per the bulk of the lot, regardless of explicit density cap. R-2 (~18,000 sf, 2.42 du/ac) and R-3 (~13,000 sf, 3.35 du/ac) are stepped intensities. Multifamily reach is concentrated in R-4 (≥4,000 sf/du) and BC-R / UC-S / UC-C. — [c§Development Code Table 1204-4]
  • Middletown spans BOTH Butler County and Warren County (Butler is the primary; Warren is secondary). Code §1206.01(b)(8) references 'public park lands owned by the City, Butler County, Warren County, or the State of Ohio' — confirming the two-county span. Downstream consumers should join against both county records when applying county-level overlays. — [c§Development Code §1206.01(b)(8)]
  • Hook Field Municipal Airport (MWO) is a city-owned general-aviation airport at or near corporate limits; Development Code §1204.10(a) Airport Turning Zone Restrictions reference an on-file drawing from 1962-12-18 with subsequent revisions. Above-height structures may not occupy >25% of lot area within the zone. Drawing itself not retrieved this pass — boundary is a known data gap. Federal 14 CFR §77 Part 77 imaginary surfaces apply independently as federal floor. — [c§Development Code §1204.10(a); c§14 CFR §77.9]
  • Code was ORIGINALLY adopted 1968-12-27 (Ord 4886), but zoning-district nomenclature was COMPREHENSIVELY recodified effective 2018-03-01 per Table 1204-2 (Transition Table). Prior DS/D-1/D-2/D-3 residential, P-1/P-2/CP office, C-1/C-2/C-3/C-4 commercial, BCI/BCH/BCO/BCR/BCF Business Center, UCC/UCS Urban Core, P (Use Modified Supplemental), and H (Hillside Supplemental) districts were renamed to current R-1/R-2/R-3/R-4, O-1/O-2, B-1/B-2/B-3, BC-I/BC-H/BC-O/BC-R/BC-F, UC-C/UC-S, PD, and H-O. Most recent amendment per amlegal: Ord O2020-47 effective 2020-10-06. — [c§Development Code Table 1204-2; c§§1202.04]

Formulas

Definitions

lot_area
Minimum area of a lot required for the use established in the applicable zoning district per Table 1204-4 (residential) or Table 1204-5 (nonresidential). For R-4 multi-family containing ≥5 units, lot area is expressed PER DWELLING UNIT (4,000 sf/du) per Table 1204-4.
lot_width
Minimum horizontal distance between side lot lines, expressed as 'lot/corner' pairs in Table 1204-4 (e.g., R-1: 125 ft interior / 175 ft corner). Nonresidential Table 1204-5 expresses single values.
max_height_ft
Maximum vertical height of any building per Tables 1204-4 / 1204-5. Note Table 1204-5 [6]: in I-1 / I-2 the 50 ft maximum applies only within 200 ft of a residential zoning district; otherwise height is as approved by Middletown Fire Department (effectively unlimited at the code level).
front_setback_ft
Minimum distance from front lot line / right-of-way to building per Tables 1204-4 / 1204-5. Note Table 1204-5 [1]: O-1 / O-2 front setback increases to 50 ft when abutting (or across the street from) R-1/R-2/R-3/R-4. Note [4]: UC-C / UC-S front setback is a range 0–15 ft, defaulting to 0 (back of sidewalk) unless outdoor dining / public art / pedestrian amenities are provided.
side_setback_ft
Per Tables 1204-4 / 1204-5. Note residential side setback is per-side; R-1 = 10 ft each, R-2 = 8 ft, R-3 = 7 ft, R-4 = 6 ft. Nonresidential B-1/B-2/B-3 [3]: side and rear setbacks required ONLY when lot is adjacent to a residential district; otherwise none. I-1/I-2 [5]: 10 ft single-side / 20 ft combined when not adjacent to residential; 20 ft single / 40 ft combined when adjacent.
rear_setback_ft
Per Tables 1204-4 / 1204-5. R-1 / R-2 = 50 ft, R-3 = 40 ft, R-4 = 30 ft. Nonresidential O-2 [2]: rear setback increases to 50 ft when abutting R-1/R-2/R-3/R-4. B-1/B-2/B-3 [3]: rear setback required only when adjacent to a residential district.
lot_depth_ft
Minimum depth required for residential lots per Table 1204-4 (R-1 = 225 ft, R-2 = 160 ft, R-3 = 135 ft, R-4 = 125 ft for all attached-residential subtypes).
max_floor_area
Two specific use-modified caps in Table 1204-5 §1204.10(c)(4): B-1 max principal-building floor area = 5,000 sf (excl. back-of-house); B-2 max principal-building floor area = 25,000 sf (excl. back-of-house). No equivalent cap for B-3 / BC / UC.
uc_c_building_width_pct
UC-C subdistrict requires principal-building façade width ≥70% of lot width per §1204.10(c)(3) — a form-based street-wall provision applied via the otherwise-Euclidean code.
front_yard_impervious_pct
Front-yard impervious surface (driveway + walkways + sidewalks) capped at 30% of front yard area per §1204.10(b)(4) — applies in residential districts only.
min_livable_floor_area
Per §1204.10(b)(3): single-family detached ≥1,700 sf (≥2 stories) or ≥1,500 sf (<2 stories); 2- and 3-family ≥1,000 sf per du; multi-family ≥500 sf per du.
parking_household_living
Per Table 1218-1: 2.0 spaces per dwelling for single-family / two-family / three-family. 1.5 spaces per du for multi-family and for du's above nonresidential uses.
parking_office
1.0 space per 400 sf of floor area (minimum 5 spaces) — applies to Business and Professional Offices.
parking_retail
1.0 space per 300 sf of floor area — applies to Retail and Service Commercial Uses, Multi-Tenant Development, Financial Institutions, Convenience Stores (min 5).
parking_industrial
Cumulative by function per Table 1218-1: office/admin = 1/300 sf; indoor sales = 1/300 sf; storage/warehousing/assembly bracketed by size (1/250 at 1-3,000 sf; 1/500 at 3,001-5,000; 1/750 at 5,001-10,000; 1/1,250 at 10,001+); outdoor storage 1/750 (≤3,000 sf) or 1/1,000 (>3,000 sf).
far
not_found — Development Code does not express maximum FAR per district. Capacity is expressed via min lot area + max height + setbacks; nonresidential lot coverage is implicit (Table 1204-5 has no lot-coverage column for nonresidential districts) and bounded by setbacks + max-floor-area caps in B-1 (5,000 sf) and B-2 (25,000 sf).
lot_coverage_pct
not_found — Tables 1204-4 / 1204-5 do not include a lot coverage column for any district. Residential implicit cap via the 30% front-yard impervious limit (§1204.10(b)(4)); building coverage is bounded only by setbacks.
max_density_du_ac
not_found_explicit — Density is implicit in R-4 (multi-family ≥5 units): 4,000 sf/du = 43,560 / 4,000 = 10.89 du/ac equivalent at lot-utilization saturation. For R-1/R-2/R-3 (single-family detached), implicit max density from lot-area minimums: R-1 = 43,560/30,000 = 1.45 du/ac; R-2 = 43,560/18,000 = 2.42 du/ac; R-3 = 43,560/13,000 = 3.35 du/ac. PD §1204.07(b)(15)(xii) — there is 'no minimum or maximum lot, setback, or density standards' at the PD district level; density is set per approved master plan.

Capacity calculations

max_units_r4_from_lot_per_unit
lot_area_sf / 4000 (for multi-family with ≥5 units)
implied_du_per_acre_r1
1.45
implied_du_per_acre_r2
2.42
implied_du_per_acre_r3
3.35
implied_du_per_acre_r4_mf
10.89
buildable_width_ft_r1
lot_width_ft - 10*2 (side setbacks 10 ft each)
buildable_depth_ft_r1
lot_depth_ft - 50 - 50 (front + rear setbacks both 50 ft)
uc_c_min_facade_width_pct
70
front_yard_max_impervious_pct
30
b1_max_principal_building_sf
5000
b2_max_principal_building_sf
25000
bc_subdistrict_min_site_acres
5

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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Sources & references

Citations
  1. [1] §Table 1204-4
  2. [2] §Table 1204-4 (each side)
  3. [3] §Table 1204-4
  4. [4] §Table 1204-4 (DETACHED RESIDENTIAL DISTRICTS row R-1)
  5. [5] §Table 1204-4
  6. [6] §Table 1218-1 Household Living Category (single-family detached)
  7. [7] §Table 1204-4
  8. [8] §Table 1204-4 (each side)
  9. [9] §Table 1204-4
  10. [10] §Table 1204-4
  11. [11] §Table 1204-4
  12. [12] §Table 1218-1 Household Living (single-family)
  13. [13] §Table 1204-4
  14. [14] §Table 1204-4 (each side)
  15. [15] §Table 1204-4
  16. [16] §Table 1204-4
  17. [17] §Table 1204-4
  18. [18] §Table 1218-1 Household Living (single-family)
  19. [19] §Table 1204-4
  20. [20] §Table 1204-4
  21. [21] §Table 1204-4
  22. [22] §Table 1204-4
  23. [23] §Table 1204-4
  24. [24] §Table 1218-1 Household Living (single-family)
  25. [25] §Table 1204-4
  26. [26] §Table 1204-4
  27. [27] §Table 1204-4
  28. [28] §Table 1204-4
  29. [29] §Table 1204-4
  30. [30] §Table 1218-1 Household Living (two-family)
  31. [31] §Table 1204-4
  32. [32] §Table 1204-4
  33. [33] §Table 1204-4
  34. [34] §Table 1204-4
  35. [35] §Table 1204-4
  36. [36] §Table 1218-1 Household Living (three-family)
  37. [37] §Table 1204-4
  38. [38] §Table 1204-4
  39. [39] §Table 1204-4
  40. [40] §Table 1204-4
  41. [41] §Table 1204-4
  42. [42] §Table 1218-1 Household Living (multi-family)
  43. [43] §Table 1204-4
  44. [44] §Table 1204-4
  45. [45] §Table 1204-4
  46. [46] §Table 1204-4 (per dwelling unit basis)
  47. [47] §Table 1204-4
  48. [48] §Table 1218-1 Household Living (multi-family)
  49. [49] §Table 1204-5
  50. [50] §Table 1204-5 (each side; 25 ft combined)
  51. [51] §Table 1204-5
  52. [52] §Table 1204-5
  53. [53] §Table 1204-5
  54. [54] §Table 1218-1 Business and Professional Offices: 1 space per 400 sf = 2.5 / 1,000 sf (min 5 spaces)
  55. [55] §Table 1204-5
  56. [56] §Table 1204-5 (each side; 25 ft combined)
  57. [57] §Table 1204-5
  58. [58] §Table 1204-5
  59. [59] §Table 1204-5
  60. [60] §Table 1218-1 Business and Professional Offices: 1/400 sf
  61. [61] §Table 1204-5
  62. [62] §Table 1204-5 (each side; 30 ft combined)
  63. [63] §Table 1204-5
  64. [64] §Table 1204-5
  65. [65] §Table 1204-5
  66. [66] §Table 1218-1 Retail and Service Commercial: 1/300 sf = 3.33/1,000 sf
  67. [67] §Table 1204-5
  68. [68] §Table 1204-5 (each side; 40 ft combined)
  69. [69] §Table 1204-5
  70. [70] §Table 1204-5
  71. [71] §Table 1204-5
  72. [72] §Table 1218-1 Retail and Service Commercial: 1/300 sf
  73. [73] §Table 1204-5
  74. [74] §Table 1204-5 (each side; 20 ft combined)
  75. [75] §Table 1204-5
  76. [76] §Table 1204-5
  77. [77] §Table 1218-1 Retail and Service Commercial: 1/300 sf
  78. [78] §Table 1204-5
  79. [79] §Table 1204-5 (5 acres)
  80. [80] §Table 1204-5
  81. [81] §Table 1204-5 (range 10–30 ft)
  82. [82] §Table 1204-5 (5 acres)
  83. [83] §Table 1204-5
  84. [84] §Table 1204-5
  85. [85] §Table 1204-5 (5 acres)
  86. [86] §Table 1204-5
  87. [87] §Table 1204-5
  88. [88] §Table 1204-5 (5 acres)
  89. [89] §Table 1204-5
  90. [90] §Table 1218-1 Household Living (multi-family)
  91. [91] §Table 1204-5
  92. [92] §Table 1204-5 (5 acres)
  93. [93] §Table 1204-5
  94. [94] §Table 1204-5 + Note [4]
  95. [95] §Table 1204-5
  96. [96] §Table 1204-5 + Note [4]
  97. [97] §Table 1204-5
  98. [98] §Table 1204-5
  99. [99] §Table 1204-5 (10 ft each side / 20 ft combined when not adjacent to residential)
  100. [100] §Table 1204-5 (15 ft when not adjacent to residential)
  101. [101] §Table 1204-5
  102. [102] §Table 1204-5 (only applies within 200 ft of a residential district per Note [6]; otherwise as approved by Middletown Fire Department)
  103. [103] §Table 1218-1 Industrial — Office or administrative area: 1/300 sf
  104. [104] §Table 1204-5
  105. [105] §Table 1204-5
  106. [106] §Table 1204-5
  107. [107] §Table 1204-5
  108. [108] §Table 1204-5 (only applies within 200 ft of residential per Note [6])
  109. [109] §Table 1218-1 Industrial — Office or administrative area: 1/300 sf
  110. [110] §Table 1204-5
  111. [111] §Table 1204-5
  112. [112] §Table 1204-5
  113. [113] §Table 1204-5

Research status

Publication gates

primary url presentpassedcode_source populated with amlegal Chapter 1204 URL https://codelibrary.amlegal.com/codes/middletownoh/latest/middletown_oh/0-0-0-44967 and code_source_pdf populated with city-hosted direct PDF URL https://www.cityofmiddletown.org/DocumentCenter/View/802/Middletown-Development-Code-PDF (fetched and content-extracted this pass).
no aggregator citedpassedScan clean: no Zoneomics, Steadily, SitePlanGuide, SitePlanCreator, Propwire, Zonara, or Unzoned references. Only primary sources cited: cityofmiddletown.org, codelibrary.amlegal.com, codes.ohio.gov, ecfr.gov (via 14 CFR §77).
confidence tags full formpassedAll confirmed numeric claims (24 districts × ~6-8 fields = ~150 confirmed atoms) carry c§Table 1204-4 / Table 1204-5 / Table 1218-1 / §1204.07(b)(N) / §1204.10(N) citations. All overlay parameters carry c§Development Code §-X-Y citations. v1's c/i/p shorthand fully replaced with status enum + citation pair. not_found / not_applicable / partial statuses each carry paired companion fields (search_performed / reason / what_is_confirmed+what_is_missing).
overlays have parameters trigger confidencepassedAll 6 overlays (H-O Hillside, PD Planned Development, UC parent + UC-C/UC-S, Airport Turning Zone, Historic Districts/Landmarks, Floodplain delegated) carry ordinance_ref, geographic_trigger, parameters[] (4+ elements each), interaction_with_base, status, citation, narrative_ref. H-O / PD / UC / Historic / Airport are confirmed (Development Code text directly extracted); Floodplain is partial with what_is_confirmed + what_is_missing populated explicitly pending Codified Ordinance fetch.
preempt section city specificpassedstate_preemptions_applicable[] lists 8 entries: 4 applies_fully (Home Rule meta, §713.15 nonconforming floor, §5104.054 Type B child care, §3781.184 HUD MH construction), 1 does_not_apply_charter_city (§713 enabling), 2 does_not_apply_municipal (§519.212 township-only MH, §519.21 township-only agriculture), 1 not_yet_law (STR). Each has qualifying_condition_checked with numeric inputs (population 49,000, governance_type municipal_corporation, charter status confirmed via code §1202.03) + vintage + threshold. v1 had no preemption block at all — fully created this pass.

Data quality

72%completeness
Documented gaps
  • Floodplain ordinance: separate from Chapter 1204; specific Codified Ordinance chapter number, freeboard above NFIP minimum, floodway prohibitions list, NFIP CID not extracted
  • Airport Turning Zone: 1962-12-18 on-file drawing boundary not retrieved; subsequent revision list not enumerated; specific elevation limits within zone unknown
  • Historic district / historic landmark roster: specific designated lots, district boundaries, and design guideline content (Chapter 1212.02 designations) not enumerated
  • Specific nonconforming-use discontinuance period in §1226 (or wherever local) not extracted — compliance with §713.15 6-month floor presumed
  • CRA boundary maps and specific district designations — flagged at city_attributes.has_cra_designation_note as partial
  • Table 1204-3 Principal Permitted Uses detail (which uses are P / U-S / C / -- in each district) not fully extracted by use
  • Front-setback averaging provision (if any) — not searched explicitly
  • Specific lot-coverage caps — code does not appear to have any (Tables 1204-4 / 1204-5 lack a coverage column); 30% front-yard impervious-only is the closest analog

Known issues

data:gaps-present

Verification

last_verified_at2026-05-18T09:25:00Z
verifier_specialistverification-pass
verifier_version1.0
verification_resultpassed
atomic_claims_checked52
atomic_claims_passed52
atomic_claims_failed0
notesAll dimensional standards for 24 districts/subdistricts × ~6-8 numeric fields were extracted directly from Tables 1204-4 (residential) and 1204-5 (nonresidential) in the city-hosted Middletown Development Code PDF (cityofmiddletown.org/DocumentCenter/View/802). Parking ratios cite Table 1218-1 directly. Overlay parameters cite specific §1204.07(b)(15)-(16), §1204.10(a)/(c)(3)/(c)(4) sections and §1204.05 Historic Districts gateway. State preemption entries cross-reference zoning/us/ohio/preemptions.md and the state-overlays/ohio.json roster. Charter-city status confirmed via code §1202.03 self-reference. The v1 record's R-1=10,000 / R-2=6,000 / R-4=4,000 / B-3=15,000 lot-area values were ALL fabricated (marked 'c':'i' for 'inferred'); actual values are R-1=30,000 / R-2=18,000 / R-3=13,000 (NEW) / R-4 stepped (9,000–15,000) / R-4-MF5+=4,000 per du / B-3=None. v1's UC / UC-C / PD / FP overlays were correctly identified by name but with fabricated parameter values; actual UC-C is form-leaning (0 ft front, 60 ft max height, 70% facade-width form) per §1204.10(c)(3) and Table 1204-5. v1 missed: R-3, R-4 subtype rows, B-1/B-2 max-floor-area caps, BC-I/H/O/R/F subdistricts, UC-S, PI, PD, H-O — all now captured. No aggregators cited.

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