/sustainability-scoring

name: sustainability-scoring
description: >-
  Score urban designs against LEED-ND, BREEAM Communities, WELL Community
  Standard, Green Star Communities, CASBEE Urban Development, and Estidama Pearl
  Community Rating System. Generates detailed scoring reports with credit-by-credit
  analysis, achievability assessment, and optimization recommendations. Use when
  the user asks to score a design for sustainability, assess LEED-ND credits,
  evaluate BREEAM compliance, check WELL community criteria, calculate a
  sustainability rating, or optimize a design for green certification.

Sustainability Scoring Skill

This skill provides comprehensive sustainability certification scoring for urban designs and masterplans. It covers the six major neighborhood/community-scale rating systems used globally: LEED-ND (US), BREEAM Communities (UK/Europe), WELL Community Standard (global, health-focused), Green Star Communities (Australia/NZ), CASBEE Urban Development (Japan), and Estidama Pearl Community Rating System (Middle East). The skill generates credit-by-credit scoring analyses, identifies optimization opportunities, and produces professional scorecard reports.

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1. Certification System Selector

Use the following decision tree to select the appropriate certification system(s) for a given project. Geography is the primary driver, but project focus and client preference may override.

Decision Tree

START
  |
  |--> Where is the project located?
  |      |
  |      |--> North America (US, Canada) --> LEED-ND v4.1
  |      |      |--> Also health-focused? --> Add WELL Community Standard
  |      |
  |      |--> United Kingdom --> BREEAM Communities
  |      |      |--> Also health-focused? --> Add WELL Community Standard
  |      |
  |      |--> Europe (non-UK) --> BREEAM Communities (or local adaptation)
  |      |      |--> Also health-focused? --> Add WELL Community Standard
  |      |
  |      |--> Australia or New Zealand --> Green Star Communities
  |      |      |--> Also health-focused? --> Add WELL Community Standard
  |      |
  |      |--> Japan --> CASBEE for Urban Development
  |      |
  |      |--> Middle East (esp. Abu Dhabi, UAE) --> Estidama Pearl Community
  |      |      |--> Abu Dhabi specifically? --> Estidama Pearl is MANDATORY
  |      |
  |      |--> Other regions --> LEED-ND (most globally recognized)
  |             |--> Or BREEAM International New Construction (building scale)
  |
  |--> Does the client have a specific certification preference?
  |      |--> Yes --> Use client's preferred system
  |      |--> No --> Use geography-based recommendation above
  |
  |--> Does the project seek multiple certifications?
         |--> Yes --> Use Cross-Certification Comparison Matrix (Section 3) to
         |           identify strategies that earn credits across multiple systems
         |--> No --> Focus on single system for maximum point optimization

System Overview Comparison

| System | Origin | Scale | Points/Score | Certification Levels | Typical Cost | Timeline | |--------|--------|-------|-------------|---------------------|-------------|----------| | **LEED-ND v4.1** | USA (USGBC) | Neighborhood (multiple buildings + infrastructure) | 110 points | Certified (40), Silver (50), Gold (60), Platinum (80) | $30,000-100,000+ | 12-36 months | | **BREEAM Communities** | UK (BRE) | Community / masterplan | % weighted score | Pass (30%), Good (45%), Very Good (55%), Excellent (70%), Outstanding (85%) | $25,000-80,000 | 12-24 months | | **WELL Community** | USA (IWBI) | Community (public realm + buildings) | Points per concept | WELL Community (pass/fail prerequisites + optimization points) | $30,000-80,000 | 12-24 months | | **Green Star Communities** | Australia (GBCA) | Community / precinct | 100+ points weighted | 1 Star to 6 Stars (World Leadership) | AUD 40,000-120,000 | 12-24 months | | **CASBEE Urban Dev.** | Japan (JSBC) | Urban development area | BEE score (ratio) | C, B-, B+, A, S (Superior) | Varies | 6-18 months | | **Estidama Pearl** | Abu Dhabi (UPC) | Community | Credit points | 1 Pearl to 5 Pearls | Included in permitting | Ongoing |

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2. LEED-ND v4.1 Quick Scoring

LEED for Neighborhood Development (LEED-ND) v4.1 is the most widely used neighborhood-scale sustainability rating system. It evaluates the location, design, and construction of new or redeveloped neighborhoods.

Prerequisites (Mandatory -- all must be met)

| Category | Prerequisite | Key Requirement | |----------|-------------|-----------------| | SLL | Smart Location | Site must not be on prime farmland, floodplain (100-yr), habitat for listed species, public parkland, or within setback of water body. Must be on previously developed land OR adjacent to existing development on at least 75% of boundary | | SLL | Imperiled Species and Ecological Communities | Assessment of site for listed species; if present, habitat conservation plan required | | SLL | Wetland and Water Body Conservation | No disturbance to wetlands or water bodies; 15m (50 ft) buffer required; 30m (100 ft) for areas with slopes >15% | | SLL | Agricultural Land Conservation | Avoid converting prime or unique farmland | | SLL | Floodplain Avoidance | No development in 100-year floodplain (FEMA or equivalent); if floodplain present, development must be outside floodplain or meet FEMA requirements | | NPD | Walkable Streets | Continuous sidewalks on both sides of 90%+ of new streets; building entries face street; no blank walls >12m; functional entries at ground floor every 23m on retail streets | | NPD | Compact Development | Minimum 17 DU/ha (7 DU/acre) for residential; minimum FAR 0.50 for non-residential; mixed-use projects must meet both thresholds for their respective components | | NPD | Connected and Open Community | No gated streets; connectivity index of 54+ internal street intersections per sq km (140/sq mi); at least one connection to adjacent development every 240m (800 ft) | |