[Amended effective 1-26-2015]
3.03.100 
Purpose and intent. The intent of this zone is to allow affordable housing in mixed-use developments at locations with adequate transportation and utility services, in order to provide housing choice and variety for those working in Newtown, single-parent households and aging households, among others. It is a further intent of these regulations to protect open spaces and rural areas of the community by encouraging development in smart growth locations.
The purpose of this zone is to promote the inclusion of affordable housing units in mixed-use, mixed-income developments consistent with topography, soil types and infrastructure capacity. Another purpose is to ensure high-quality design that is sensitive to the rural character of the community and the neighborhood surrounding the development in particular.
As an overlay zone, the IHOZ offers additional regulations to the applicable underlying zoning district regulations. Except as modified in this Section 595-3.03, the provisions of the underlying district will govern.
3.03.200 
Location criteria. Applications for a IHOZ-permitted use must meet the following criteria:
(a) 
Application to amend Official Zoning Map to include IHOZ overlay zone to a particular parcel(s).
(b) 
Minimum lot size of 10 acres.
(c) 
All parcel(s) must have frontage on a principal arterial roads or State Route.
(d) 
Applicants must demonstrate that all parcels have access to public sanitary sewer and public water or that the applicant has the ability to acquire such access prior to construction.
3.03.300 
Permitted uses. In all IHOZ developments, not less than 20% of the dwelling units will be conveyed by deeds containing covenants or restrictions which shall require that, for at least 30 years after the initial occupation of the proposed development, such dwelling units shall be sold or rented at, or below, prices which will preserve the units as housing for which persons and families pay 30% or less of their annual income, where such income is less than or equal to 80% of the area median income. Each application will require an affordability plan, which shall describe in detail how the development will comply with these regulations, and how the affordability covenants and restrictions will be administered.
3.03.310 
The following IHOZ uses are permitted by special exception:
(a) 
The following uses are permitted by special exception in addition to the uses allowed in the underlying zone. The following uses shall be limited to the R-2, R-3 and business zones, provided, however, that the use or uses allowed in this overlay zone may not be in conflict with the primary uses allowed in the underlying zone, so that apartments and town houses will only be allowed in parcels zoned for residential uses and mixed-use buildings and developments will only be allowed in parcels zoned for business uses.
(b) 
Townhouses and garden apartments. There shall be no more than 12 units per usable acre based upon deduction of area as applicable. Such density shall be calculated as usable using the total site acreage. Acreage having a slope of 25% of more shall be calculated using 50% of such area. Acreage having wetlands, watercourses or area within base flood elevation as determined by the Federal Emergency Management Agency shall be calculated as usable using 25% of such areas. All other acreage is considered usable site and density shall be calculated at 100%.
(c) 
Mixed-use buildings. Mixed-use buildings must contain commercial and residential uses, and meet the following provisions:
1) 
Residential uses are not permitted on the first floor.
2) 
Commercial uses in such buildings are limited to retail, professional office, restaurant, financial institutions, and personal service establishments.
3) 
No more than 12 dwelling units per usable acre are allowed. Such density shall be calculated as usable using the total site acreage. Acreage having a slope of 25% of more shall be calculated using 50% of such area. Acreage having wetlands, watercourses or area within base flood elevation as determined by the Federal Emergency Management Agency shall be calculated as usable using 25% of such areas. All other acreage is considered usable site and density shall be calculated at 100%.
(d) 
Mixed-use developments. Mixed-use developments are developments of multiple buildings on a parcel or adjacent parcels under unified ownership or control that includes at least one building containing residential use and at least one building containing commercial use(s). Mixed-use developments shall meet the following provisions.
1) 
Residential units are permitted in townhouse and garden apartment structures only.
2) 
Commercial uses are limited to retail, professional office, restaurant, financial institutions.
3) 
No more than 12 dwelling units per usable acre are allowed. Such density shall be calculated as usable using the total site acreage. Acreage having a slope of 25% of more shall be calculated using 50% of such area. Acreage having wetlands, watercourses or area within base flood elevation as determined by the Federal Emergency Management Agency shall be calculated as usable using 25% of such areas. All other acreage is considered usable site and density shall be calculated at 100%.
Article VII, Area, Height and Yard Requirements, and all other applicable sections of these regulations apply, in addition:
(a) 
Street frontage. Each lot shall have a minimum frontage of 100 feet.
(b) 
Front yard setback. The minimum setback from the street shall be 75 feet from the street line and in the Hawleyville and Sandy Hook Design Districts, the front setback shall be in compliance with the applicable zone regulations. Adjacent parcels to the Design Districts could utilize the front setbacks for the specific Design District at the discretion of the Commission.
(c) 
Side and rear setbacks. The minimum side yards shall be 35 feet, and the minimum rear yard shall be 50 feet.
(d) 
Building height. No building shall exceed 36 feet in height above the average finished ground level to the midpoint of the roof at the side of the building closest to the street or private road and no portion of the structure shall be more 54 feet to the highest point of the ground level on any side of the building and no structure shall be more than 10 feet below the average finished ground level at the front of the building.
(e) 
Building coverage. Building coverage shall not exceed 30%.
(f) 
The Commission by a 4/5 vote can approve modifications to 3.03.400 on a project specific basis, including, but not limited to, the following parameters; topography, building design and aesthetics.
Each Townhouse dwelling unit shall have an entrance providing direct access to the exterior, which access shall not be shared in common with any other dwelling unit.
Affordable units shall be of a construction quality that is comparable to market-rate units within the development, and shall be dispersed throughout the development.
Dwelling units shall contain no less than one bedroom and no more than three bedrooms.
Affordable units shall be of a construction quality and design that is comparable to market-rate units within the development, and shall be dispersed throughout the development. The set-aside units shall contain at least 20% of the total bedrooms proposed for the project.
3.03.605 
Appearance.
(a) 
Facades.
1. 
Building greater than 60 feet in length shall be visually broken into smaller elements and incorporate architectural details in order to add visual character and human scale.
2. 
Ground floor "front facing" facades shall incorporate projecting covered entries at least three feet in depth.
a. 
Entrances should be designed to reflect a scale for the number of dwellings/tenants served.
b. 
Entrances serving multiple dwellings/tenants may use a variety of detailing to provide identity within a building and a complex.
3. 
No uninterrupted length of any facade, except as noted below, shall be permitted to exceed the lesser of 40% of total length of the facade or 40 feet without incorporating a change in color, material, texture/pattern, projection, recess, window, balcony, trellis, or similar architectural feature.
a. 
Exception. Accessory structures less than 20 feet in height and 24 feet in depth used for housing automobiles; for example, carports and garages that are designed to complement the building and site and that incorporate like materials. Clubhouse is not an accessory structure. Cupolas are also allowed on top of the roofs of carports and garages.
4. 
Front facade design may incorporate a distinction between ground floor and upper stories through the use of masonry water-tables, entry features, and other architectural elements appropriate to the scale and design of the building.
5. 
Placement of windows and other major architectural elements/features on upper stories shall to the extent practicable be arranged with a balanced spacing and evident rhythm.
6. 
Blank wall surfaces greater than 20 feet along the horizontal plane of the building are prohibited at the street level on any building facade adjacent to a sidewalk or public way.
7. 
Where blank wall surfaces are permitted and deemed necessary, wall panels, pilasters, building bays, or other architectural elements shall be carried across the blank surface to relieve uninteresting facades. A waiver may be granted by the commission to this requirement for facades that are within, or will be within, 10 feet of an adjacent building and therefore not visible from the public ways.
8. 
Residential side and rear facades which are visible from the public ways shall be articulated in a manner compatible with the design of the front facade.
(b) 
Materials and colors.
1. 
New building materials shall be selected to convey a sense of quality, durability and permanence, and shall be economically maintained and able to retain their appearance over time.
2. 
Building facade materials permitted within the district include brick, stone, wood, cementitious fiberboard, cast stone, manufactured limestone, PVC trim and vinyl.
a. 
Artificial/faux materials can be used provided they are of good quality and consistent with "natural"/traditional materials.
3. 
Stone, cast stone, cultured stone or brick veneers can be used as an accent material to provide scale to a building. It is encouraged to use stone water-tables at the first floor and to establish a horizontal datum for the building to grow from the site. These veneer materials are encouraged to be used as architectural elements such as piers, columns, column bases, chimneys, stepped vertical material offsets, etc., to provide scale and detail to larger building(s).
4. 
Poured-in-place concrete or pre-cast concrete are appropriate as a basic building material provided special consideration is given to formwork, pigments, and aggregates to create a rich surface.
5. 
A limited but consistent pallet of materials is encouraged to be used to establish both uniformity and variety at human scale with-in the zone.
(c) 
Roofs.
1. 
Roof forms shall complement the buildings in terms of style, detailing and material.
2. 
Roof forms may vary within a building and shall include sloped roofs, parapets, decorative cornice treatments, soffits, overhangs from six inches to 36 inches, dormers, cupolas, or other architectural element to complement the building without creating a cluttered visual appearance. Cupolas, parapets, bulkheads and mechanical screening can range from four feet to 17 feet and are in addition to maximum building height.
3. 
Flat roofs shall be screened from public view using parapets or other architectural elements.
4. 
Mechanical equipment, metal chimneys, chimneys, elevator shafts and stair bulkhead roofs shall be encouraged to be screened from public view using parapets or other architectural element.
3.03.610 
Parking. Parking shall conform to the requirements of Article VIII, Section 3, in general.
Shared parking for mixed-use buildings and mixed-use developments is encouraged to reduce impervious surfaces. Applicants should submit a Parking Demand Study conducted by a qualified firm, which details peak parking demand by uses and recommends a shared parking arrangement.
The minimum number of parking spaces required shall generally comply with Section 595-8.03.600. The Commission may reduce parking requirements where the applicant submits data or a plan demonstrating the adequacy of the lower number.
3.03.620 
Private roads. Private roads within IHOZ developments shall be 22 feet wide with a surface that meets Town standards (may want to encourage/incentivize pervious surfaces).
3.03.630 
Pedestrian circulation. In all developments, sidewalks and pedestrian pathways shall be constructed on frontage roads to connect with proposed or existing Town sidewalks. Internal on-site sidewalks constructed at the Commission's discretion.
3.03.640 
Landscaping. Existing vegetation and natural changes in topography shall be maintained to the greatest extent possible in designing site development. Screening from adjacent properties shall be enhanced by maintaining existing vegetation and topography shall be supplemented with fences, walls, berms and dense landscaping which will adequately screen MUMI developments from adjacent properties year round.
3.03.650 
Lighting. Lighting Plan shall conform to Article VIII, Supplemental Regulations, Section 5, Exterior Lighting.
3.03.660 
Design Advisory Board. The project shall be reviewed by the Design Advisory Board in compliance with Newtown Zoning Regulation Section 595-2.02.330.
3.03.670 
Traffic report. A traffic impact analysis shall be completed by a certified traffic engineer.