2.1 Site
Attribute Descriptions
None at this time.
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IN THIS SECTION: Site Soils | Site Vegetation | Site Parking | Site Water | Site Materials | Sustainable Locations | Collaborative Design Process
Design for Public Use
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
|---|---|---|---|---|---|---|---|---|
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Site Soils | ||||||||
| Minimize Soil Disturbance in design and construction | Limit site disturbance to: 1. 60 feet beyond any new building perimeter, 2. 15 feet beyond proposed surface walkways, terraces, surface parking, and utilities less than 12 inches in diameter, 3. 20 feet beyond primary roadway curbs/roadway edges and main utility branch trenches, 4. 30 feet beyond constructed areas with permeable surfaces that requires additional staging areas in order to limit compaction in the constructed area. | Limit site disturbance to: 1. 60 feet beyond any new building perimeter, 2. 15 feet beyond proposed surface walkways, terraces, surface parking, and utilities less than 12 inches in diameter, 3. 20 feet beyond primary roadway curbs/roadway edges and main utility branch trenches, 4. 30 feet beyond constructed areas with permeable surfaces that requires additional staging areas in order to limit compaction in the constructed area. | Limit site disturbance to: 1. 40 feet beyond the building perimeter, 2. 10 feet beyond surface walkways, terraces, surface parking, and utilities less than 12 inches in diameter, 3. 15 feet beyond primary roadway curbs/roadway edges and main utility branch trenches, 4. 25 feet beyond constructed areas with permeable surfaces that require additional staging areas in order to limit compaction in the constructed area. | Limit site disturbance to: 1. 40 feet beyond the building perimeter, 2. 10 feet beyond surface walkways, terraces, surface parking, and utilities less than 12 inches in diameter, 3. 15 feet beyond primary roadway curbs/roadway edges and main utility branch trenches, 4. 25 feet beyond constructed areas with permeable surfaces that require additional staging areas in order to limit compaction in the constructed area. | The Sustainable Sites Initiative Site Design Credit 4.4 Option 2 | |||
| Create a soil management plan | SMP should include: 1. Site Plan/ Grading Plan identifying site soils that will remain, be altered significantly, and those that will be renewed. 2. Indicate all lay down areas respond to/exceed baseline soil disturbance criteria. 3. Describe how restored soils will be managed and how they will be protected during construction term. 4. Provide all typical soil treatment details. | See Baseline | See Baseline | See Baseline | The Sustainable Sites Initiative Site Design Credit 4.3 | |||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Site Vegetation | ||||||||
| Architectural Applications | No Requirement | 40% or more of the proposed architectural roof surface areas shall be covered with vegetation. This improvement should be quantified/projected and provided. | 70% or more of the proposed structure's roof surface areas shall be covered with vegetation to directly improve the performance of the building. This improvement should be quantified/projected and provided. | 80% or more of the proposed structure’s roof surface area shall be covered with vegetation. This improvement should be quantified/projected and provided. In addition a significant area of the architectural fa¸ade surface area shall be covered with vegetation to directly improve the heating/cooling performance of the building. This improvement should be quantified/projected and provided. | The Sustainable Sites Initiative Site Design Credit 4.10. 4.11, 4.12 | |||
| Native/Adaptive Plants | The site is to be planted at minimum 60% of the proposed vegetated area with native/adaptive species plants. No species known to be invasive is permitted to be proposed or remain on site within the project area. | The site is to be planted at minimum 70% of the proposed vegetated area with native/adaptive species plants. No species known to be invasive is permitted to be proposed or remain on site within the project area. | The site is to be planted at minimum 80% of the proposed vegetated area with native/adaptive species plants. No species known to be invasive is permitted to be proposed or remain on site within the project area. | The site is to be planted at minimum 90% of the proposed vegetated area with native/adaptive species plants. No species known to be invasive is permitted to be proposed or remain on site within the project area. | The Sustainable Sites Initiative Site Design Credit 4.7 | |||
| Management Plan | A brief landscape management plan is to be developed and provided for all plants, including a detailed explanation of special care instructions for any green roofs and walls, and the recommended management of invasive species likely to be present of persistent at the particular project site. | See Baseline | See Baseline | See Baseline | The Sustainable Sites Initiative Site Design Credit 4.4 | |||
| Special Status | All special status vegetation located on the development site is to be preserved. If preservation is not possible at the proposed location, an offset location, onsite or off-site, is to be identified, and the cost to re-establish the vegetation at the scale of impact should be set aside as a cost of the project. | See Baseline | See Baseline | See Baseline | The Sustainable Sites Initiative Site Design Credit 4.5 | |||
| Valuation and replacement of trees lost as a result of the construction process and or design intent. | Trees that are unable to be avoided/incorporated in the proposed design, and are of substantial size, require offset plantings. Existing trees greater than 5" DBH shall be replaced by an equivalent 5" minimum caliper specimen at a 1 to 1 replacement value. Trees greater than 12" DBH shall be replaced by an equivalent 5" minimum caliper specimen at a 2 to 1 replacement value. | See Baseline | See Baseline | See Baseline | The Sustainable Sites Initiative Site Design Credit 5.4 | |||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Site Parking | ||||||||
| Purpose: This goal is intended to provide minimum design standards for parking field spatial design that factor-in sustainability goals. Applicability: All landscape project types that contain 18 or more spaces or are greater than 6,000 square feet in area. Parking fields by definition include the parking stalls, drive isles, planted islands, and immediately adjacent landscape spaces that are in service to the parking field function. | Tree plantings must meet requisite rooting requirements. The open parking area shall be graded to allow stormwater runoff to drain into all required perimeter landscaped areas and/or planting infiltration islands. One three-inch caliper tree shall be provided for every 1250 SF of parking area. No more than 18 parking stalls shall be allowed between planting islands and/or planting islands and a perimeter landscape. Each tree shall have a minimum planting zone of 150SF of pervious area and spaced no closer than 20'oc. Any space less than 2' in width shall not contribute to the square footage requirement of the trees requisite planting zone. | Achieved when coupled with one high performance subject area acheivements, such as "site materials, water or vegetation." | Achieved when coupled with two high performance subject area acheivements, such as "site materials, water or vegetation." | Achieved when coupled with three high performance subject area acheivements, such as "site materials, water or vegetation." | ||||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Site Water | ||||||||
| Protect and enhance on-site water resources. | If project property bounds a watercourse, rehabilitate 25% of shoreline length to improve the overall function of the watercourse. | If property bounds a watercourse, rehabilitate 50% of shoreline length to improve the overall function of the watercourse. | If property bounds a watercourse, rehabilitate 75% of shoreline length to improve the overall function of the watercourse. | If property bounds a watercourse, rehabilitate 100% of shoreline length to improve the function of the watercourse. | The Sustainable Sites Initiative Site Design Credit 3.6 | |||
| Maintain site water storage capacity. | Maintain the pre-development water storage capacity of the project site. (computations required) | See Baseline | See Baseline | See Baseline | The Sustainable Sites Initiative Site Design Credit 3.5 | |||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Site Materials | ||||||||
| Pervious Pavements | 20% of the hardscape area proposed for the project need be pervious. | 30% of the hardscape area proposed for the project need be pervious. | 40% of the hardscape area proposed for the project need be pervious. | 50% of the hardscape area proposed for the project need be pervious. | The Sustainable Sites Initiative Site Design Credit 3.5 | |||
| Wood Products | Only wood products from non-threatened tree species are allowable for use. | Only wood products from non-threatened tree species are allowable for use. | Wood products shall be certified from a sustainable third-party management organization. | Wood products shall be certified from a sustainable third-party management organization. | The Sustainable Sites Initiative Site Design Credit 5.1 | |||
| Solar Reflective Index | More than 20% of flatwork materials for hardscapes, including walkways and public gathering areas with an SRI index of 29 or greater. Parking fields are excluded. | More than 40% of flatwork materials for hardscapes, including walkways, parking fields, and public gathering areas with an SRI index of 29 or greater. | More than 60% of flatwork materials for hardscapes, including walkways, parking fiields, and public gathering areas with an SRI index of 29 or greater. | More than 80% of flatwork materials for hardscapes, including walkways, parking fields, and public gathering areas with an SRI index of 29 or greater. | The Sustainable Sites Initiative Site Design Credit 4.12 | |||
| Recycled Content | More than 20% of new site materials should be specified to include recycled content to avoid the extraction and use of virgin material. | More than 40% of new site materials should be specified to include recycled content to avoid the extraction and use of virgin material. | More than 60% of new site materials should be specified to include recycled content to avoid the extraction and use of virgin material. | More than 40% of new site materials should be specified to include recycled content to avoid the extraction and use of virgin material. | The Sustainable Sites Initiative Site Design Credit 5.5 | |||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Sustainable Locations | ||||||||
| Site Development Supports Federal Sustainable Location Goals | 1. Site selection process addressed Relevant Policy Directives or equivalent. 2. Meets LEED ND Prerequisites for 'Smart Location and Linkage' or equivalent. 3. Qualifies for 30% of points under LEED ND 'Smart Location and Linkage' or equivalent. | 1. Meets Baseline Requirement AND 2. Qualifies for 60% of points under LEED ND 'Smart Location and Linkage' or equivalent. 3. Meets LEED ND 'Neighborhood Pattern and Design' Prerequisites or equivalent. | 1. Meets Tier 1 Requirement AND 2. Qualifies for 90% of points under LEED ND 'Smart Location and Linkage' or equivalent. 3. Meets LEED ND 'Compact Development' and 'Reduced Parking Footprint' criteria or equivalent. | 1. Meets Tier 2 Requirement AND 2. Qualifies for 90% of points under LEED ND 'Smart Location and Linkage' or equivalent. | Ref. to relevant LEED ND criteria or equivalent. | Policy Directives: - Executive Orders 12072, 13006, 13514; - Implementing Instructions for Sustainable Federal Locations (CEQ, 9/2011) Reference Standard: - LEED ND 2009, and as updated or equivalent. | ||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Collaborative Design Process | ||||||||
| Design Process Considers Input of Local Officials | 1. Prior to Design Kickoff meeting, PM and A/E meet with local planning/land use officials to share project info; get officials input, local plans, etc. 2. At 1st Peer Review, project team presents input from meeting with local officials; explains resulting design strategy; 3. Prior to approval of Final Design Concept, project team shares design strategy with local officials, addresses their feedback prior to design approval; 4. Above design concept includes detail regarding materials and strategy for perimeter security and landscape design; | 1. Prior to Design Kickoff meeting, PM and A/E meet with local planning/land use officials to share project info; get officials input, local plans, etc. 2. Prior to 1st Peer Review, project team shares preliminary concepts with local officials and presents their input at Peer Review; 3. Prior to approval of final concept, project team shares design with local officials, addresses their feedback prior to design approval; | 1. Meets Tier 1 HP Requirements AND 2. Project is based upon a Feasibility Study that included input from local officials; | 1. Meets Tier 2 HP Requirements AND 2. Project design and development is based upon a neighborhood plan process that was developed in partnership with local officials; | PM document in Proj Management Plan; A/E document in design narratives | Policy Directives: - Urban Policy Act of 1949; - Public Buildings Amendments of 1988; - Executive Orders 12072, 13006, 13514; - Implementing Instructions for Sustainable Federal Locations (CEQ, 9/2011) | ||
| Attribute | Baseline | ★ Tier 1 High Performance | ★★ Tier 2 High Performance | ★★★ Tier 3 High Performance | Verification | |||
| Measurements & Verification | Plans & Specifications | Calculations & Analysis | Reference Standard | |||||
| Design for Public Use | ||||||||
| Design Explores Potential for Public Use - Interior | 1. Assembly areas in client program are designed to allow for manageable public access for after hours use. | 1. Assembly areas in client program are designed for manageable public access for after hours use. 2. Assembly areas in client program are positioned within the building and enhanced to better support public use. | 1. Meets Tier 1 Requirements AND 2. Design provides interior spaces that will be outleased for private commercial or other mixed use. | 1. Meets Tier 2 Requirements AND 2. Design provides interior spaces that will be outleased for private commercial or other mixed use. 3. Interior public use spaces have street presences and access. | A/E document in design narratives | Policy Directives: - Public Buildings Cooperative Use Act | ||
| Design Explores Potential for Public Use - Exterior | 1. Public grounds and building approaches are designed to allow for passive public use 2. Design response includes adequate outdoor seating, shade, and other features to create comfortable public spaces; | 1. Meets Baseline Requirements AND 2. Landscape design includes plaza or similar area designed for occasional programmed use. | 1. Meets Tier 1 Requirements AND 2. Design provides exterior spaces that are specifically designed for third-party use. | A/E document in design narratives | Policy Directives: - Public Buildings Cooperative Use Act | |||