The City of Trenton, Texas, is hereby divided into zoning districts as listed in this section.

Agricultural District: The A district provides for the continuance of farming, ranching, and gardening activities on land being utilized for these purposes. When land in an Agricultural District is needed for urban purposes, it is anticipated the zoning will be changed to the accordance with the Comprehensive Plan.

Single-Family Residential Estate: The R-E district provides for residential development on large lots, with a minimum building site of 32,670 square feet. Density in this district will usually be no greater than one (1) unit per gross acre.

Single-Family Residential District: The R-1 district provides for a minimum residential building site of 7,500 square feet. Density in this district will usually be no greater than four (4) units per gross acre.

Two-Family Residential District: The R-2 district permits residential development of densities ranging from four (4) to six (6) units per gross acre.

Manufactured Home Subdivision District: The MH-1 district provides an area for the placement of a manufactured home and modular home units in subdivisions in which most and [sic] housing units are owner-occupied. Densities in this district will be comparable to that of the R-1 District.

Manufactured Home and RV Park District: The MH-2 District establishes a category in which manufactured home and RV park development with a maximum density of approximately 5-6 units per gross acre can occur.

Multifamily Dwelling District: The MF district permits multifamily development of maximum densities of twenty (20) units per acre, except under special mitigation conditions.

Office, Light Retail, and Neighborhood Services District: Retail, commercial, and office uses developed under the standards of the B-1 District are designed to provide a compatible relationship between the B-1 development and adjacent residential areas.

General Business District: Uses, which require considerable space for display, sales, or open storage, or by the nature of the uses are generally not compatible with residential uses, are located in the B-2 Commercial District in addition to uses allowed in the B-1 district.

Central Business District: This district is intended to be a mixed-use area consisting of retail, commercial, office, and residential uses designed to provide a compatible relationship between business uses, residential uses, and adjacent residential areas.

Industrial District, Light: The Light Industrial District (I-1) is established to accommodate uses of a non-nuisance type located in relative proximity to residential and B-1 business areas. Development in the I-1 district is limited primary to certain wholesale, jobbing, and warehouse uses and certain specialized manufacturing and research uses of a type which will not create a nuisance.

Industrial District, Heavy: The Heavy Industrial District (I-2) is established to accommodate industrial uses not appropriate for inclusion in the I-1 district and likely to create noise, traffic, odor, and/or other conditions incompatible with most residential and commercial uses.

Planned Development District: The Planned Development ("PD") District is intended to provide for greater flexibility in the planning and development of projects by allowing a combination of land uses under a unified plan that protects contiguous land uses and preserves significant natural features. A PD District may be used to permit new and innovative concepts in land use. While great flexibility is given to provide special restrictions which will allow development not otherwise permitted, procedures are established herein to insure against misuse of the increased flexibility.