OPTION 2 NON-RESIDENTIAL For projects that provide parking for less than 5% of
FTE building occupants:
Provide preferred parking for carpools or vanpools, marked as such, for 5% of total provided
parking spaces. Providing a discounted parking rate is a
Grasspave are 3.3 foot squares and 1.65 foot squares and installs at a price of about $2.50 per
For examples of Grasspave applications visit the following links:
An application of Grasspave in an automobile display area in Red Wood City, CA
sharing facilities with neighbors. Establish clearly marked construction boundaries to minimize
disturbance of existing and restore previously degraded areas to their natural state.
Smaller development footprints often prove to be financially beneficial.
Reduce heat islands (thermal gradient differences between developed and undeveloped areas) to
minimize impact on microclimate and human and wildlife habitat.
Use roofing materials having a Solar Reflectance Index (SRI)3 equa
Implement a stormwater management plan that protects receiving stream channels from excessive
erosion by implementing a stream channel protection strategy and quantity control strategies.
CASE 2 EXISTING IMPERVIOUSNESS IS GREATER THAN 50%
Implement a s
central location or basin, but continue to store it. Conveyance systems are typically used to
transport water over the ground to a detention or retention basin. Water treatment systems are
capable of improving water quality by removing contaminants from s
Use alternative surfaces (e.g., vegetated roofs, pervious pavement or grid pavers) and nonstructural
techniques (e.g., rain gardens, vegetated swales, disconnection of imperviousness, rainwater
recycling) to reduce imperviousness and promote infiltration
OPTION 1 Rail Station Proximity
Locate the project within 1/2-mile walking distance (measured from a main building entrance) of
an existing or planned and funded commuter rail, light rail or subway station.
OPTION 2 Bus Stop Proximity
Locate the projec
LEED Sustainable Sites: Reduced Site Disturbance
The perceived economic value of single floor buildings, teamed with inefficiently laid out floor
plans adds to sprawling development footprints. Unnecessarily large parking lots and inefficient
Aside from reducing heat island effects and managing site water, planted roofs provide an attractive
aesthetic. In some cases planted roof gardens can be made accessible, allowing many buildings to
boast an additional amenity of the building. Roof gardens
Follow the link to the Green Neighborhoods Plan of the Center for Housing Innovation
Scroll down to the "Chapter 4: Natural Drainage" or "Chapter 6: Vegetation" sections
LEED Sustainable Sites: Heat Island Effect
Dense, dark, non-reflective surfaces s
Parking for low-emitting and fuel-efficient vehicles must be located in the nearest available spaces in the
nearest available parking area. Provide a site plan or area map clearly highlighting the walking path
from the parking area to the project site a
On greenfield sites, limit site disturbance including earthwork and clearing of vegetation to 40 feet
beyond the building perimeter, 5 feet beyond primary roadway curbs, walkways and main utility
branch trenches, and 25 feet beyond constructed areas with
Reduce pollution and land development impacts from automobile use
Provide preferred parking for low-emitting and fuel-efficient vehicles for 5% of the total vehicle parking
capacity of the site. Providing a discounted parking rate i
LEED Sustainable Sites: Site Development
Obtrusive development of greenfields can have many negative effects on existing ecology. Present
day site clearing and preparation often destroy complex systems of existing wildlife and plant
Provide a high ratio of open space to development footprint to promote biodiversity.
Reduce the development footprint (defined as the total area of the building footprint, hardscape,
access roads and parking) and/or provide vegetate
vegetated roof surfaces may apply the vegetated roof surface to this calculation if the plants meet
the definition of native/adapted.
Greenfield sites are those that are not previously developed or graded and remain in a natural
state. Previously develope
LEED Sustainable Sites: Stormwater Design
Stormwater runoff often picks up pollutants such as organics and fuel residue that have been
deposited on surfaces by people. The runoff must be cleaned before release back into the natural
water system. Stormwate
more than 2% of the total initial designed fixture lumens are emitted at an angle of 90 degrees or
higher from nadir (straight down). For site boundaries that abut public rights-of-way, light trespass
requirements may be met relative to the curb line inst
Place a minimum of 50% of parking spaces under cover. Any roof used to shade or cover parking
must have an SRI of at least 29, be a vegetated green roof or be covered by solar panels that
produce energy used to offset some nonrenewable resourc
For commercial or institutional buildings, provide secure bicycle storage with convenient
changing/shower facilities (within 200 yards of the building) for 5% or more of regular building
occupants. For residential buildings, provide covered storage facili
Adopt site lighting criteria to maintain safe light levels while avoiding off-site lighting and night
sky pollution. Minimize site lighting where possible and model the site lighting using a computer
model. Technologies to reduce light pollution include f
Infiltration swales are often designed for larger volumes of water runoff that may come
from roofs, roadways, or parking lots. Infiltration swales are planted areas, usually tall
grasses, that allow a place for onsite filtration, percolation, and remova
line of sight to any openings in the envelope (translucent or transparent) by at least 50% between
11 p.m. and 5 a.m. After-hours override may be provided by a manual or occupant-sensing device
provided the override lasts no more than 30 minutes.
Module 2 will allow you to develop an understanding of the environmental, social, and financial goals of
sustainable design at the scale of the region, city, neighborhood, and site.
Module 2 is divided into the following sections:
Designers must be aware of the affects of sprawl so that they can inform their clients to make
responsible, environmentally informed decisions. The major tactic for limiting sprawl is to design
communities that are denser and that do not utilize the autom
Devlop on a site classified as a brownfield by a local, state or federal government agency.
Effectively remediate site contamination.
TECHNOLOGIES & STRATEGIES:
During the site selection process, give preference to brownfield sites. Identify t
Park; 14) Pharmacy; 15) Post Office; 16) Restaurant; 17) School; 18) Supermarket; 19) Theater;
20) Community Center; 21) Fitness Center; 22) Museum.
Proximity is determined by drawing a 1/2 mile radius around the main building entrance on a site
map and c
Locate stores, offices, residences, schools, and recreation within walking distance of each
Use pedestrian oriented street design to create safe, independently moving paths of street and
Create a variety of housing choices
Close destinations: create walkable neighborhoods that can be personally experienced. This
feature provides interaction between neighbors, which bolsters community attachment and
Neighborhood parks, schools, & mixed use: incorporation of