Single-family detached dwellings.

Single-family attached dwellings (duplex, town/row houses, patio homes, cluster homes).

Public parks, playgrounds and open space.

Customary accessory uses and buildings, excluding outdoor storage, incidental to any permitted uses, including:

No-impact home-based businesses, subject to the definition in Part 2, and as prescribed in Home Occupation Regulations (see § 26-134 of this chapter).

Professional offices, conducted in a residential district, but not as a home occupation, subject to the definition in Part 2, and providing there is limited external evidence of such use, including signs as allowed in a residential zone and necessary off-street parking.

Necessary public utility structures and buildings providing that they do not include materials storage, storage for trucks, repair facilities or housing quarters for repair crews.

Private swimming pools as an accessory use to a dwelling (see § 26-132B) of this chapter.

Uses which, in the opinion of the Planning Commission, are of the same general character as those listed as permitted uses and which will not be detrimental to the intended purpose of this district.

The following use, after approval by the Zoning Hearing Board as a special exception:

The following uses, if approved by the governing body as a conditional use:

Lot regulations. A lot width, lot area and setback of not less than the dimensions shown on the following table shall be provided for every dwelling unit and/or principal nonresidential building hereafter erected or altered for any use permitted in the districts. These standards are minimums per lot/parcel and do not increase the total permitted dwellings beyond nine per net development acre in an R-3 District. [Note: R-3 Districts allow a maximum of nine dwellings per acre of "net development area." (See § 26-155B and Table 155.B.1 of this chapter.)]

Building height. No principal building shall exceed 2-1/2 stories or 35 feet in height; and no accessory building shall exceed one story or 18 feet in height.

All residential dwellings, whether attached or detached, must meet or exceed 24 feet in width, not inclusive of garages or accessory storage areas.

As a means to facilitate development flexibility, the above standards, subject to density per acre, may be applied to all approved PRDs regardless of zoning district. (See Table 155.B.1[1] for density by zoning district.)

In those instances where several principal buildings, subject to approved conditional use, are located on the same lot, the separation distances shall be in accordance with § 26-136H of this chapter.

When newly constructed R-3 dwellings are to be situated within 100 feet of existing R-1 dwellings, the R-3 dwellings shall be limited to the following single-family construction formats: detached/individual and attached duplex dwellings up to two stories, and/or other attached dwellings (such as patio style homes) up to 1.5 stories with four or fewer attached dwellings per row/cluster. (See § 26-137 for more on attached dwellings.)

The minimum habitable floor area of any new dwelling unit hereafter utilized shall be 700 square feet except as noted below.

Multiple-family and apartment dwelling units in buildings containing two or more dwelling units shall have a floor area of not less than that listed above and in no case shall the floor area ratio (total floor area divided by the lot area) exceed 1.0; providing, further, that there shall be not less than 2,000 square feet of land area per dwelling unit.

No newly constructed or expanded multiple-family dwellings subject to conditional use approval, may exceed six units total or if constructed as attached linear or cluster format dwellings with the appearance of five linear or clustered units (see § 26-137 of this chapter).

To limit the appearance of building mass, no multiple-family dwelling in the R-3 District may exceed 10,000 square feet habitable floor area in total, unless granted a variance by the Zoning Hearing Board, or if approved by the governing body as a conditional use at the outset or amendment of a PRD.