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K–12 Retrofit · Waste Management & Reuse

Desert Meadow Preschool — Construction Waste & Material Reuse Case Study

Graduate studio concept LEED v4.1 Construction waste management Building & material reuse

Project Location

Desert Meadow Preschool · Laveen Village, Arizona

Aerial view of Desert Meadow Preschool site in Laveen Village, Arizona

Address: 6855 W Meadows Loop E, Laveen Village, AZ 85339

Desert Meadow Preschool sits within a fast-growing suburban neighborhood in Laveen Village. The retrofit study focuses on aligning day-to-day operations and future upgrades with high-performance waste management, material reuse and healthy indoor environmental quality for young learners.

Street-side view of Desert Meadow Preschool with surrounding neighborhood context
Neighborhood context of the preschool campus and surrounding residential streets.
Overall site map and circulation diagram for Desert Meadow Preschool

Overall site organization, highlighting drop-off loops, play yards and service access zones used for waste collection.

Diagram showing outdoor recycling locations at Desert Meadow Preschool
Concept locations for outdoor recycling and waste stations integrated with student circulation.

Strategies for Storage & Collection of Recyclables

Solar compactors & high-visibility placement

Install solar-powered compactors for outdoor recycling bins to minimize the frequency of waste collection and reduce energy consumption associated with hauling and compacting.

Place these compactors in high-traffic outdoor areas, such as playgrounds and sports fields, so that recycling is visible and convenient beyond the school building itself. Clear signage, color-coding and age-appropriate graphics reinforce good recycling habits for preschool students, staff and families.

Diagram showing safe e-waste collection points
Proposed locations for e-waste collection and back-of-house storage prior to off-site processing.

Safe Collection of Electronic Waste

Plan of Action

  • Use specialized containers or boxes for storing fluorescent and other mercury-containing lamps to prevent breakage.
  • Maintain a detailed log tracking the quantity and storage dates of all stored lamps.
  • Partner with certified hazardous waste handlers or recycling facilities equipped to manage mercury-containing waste safely.
  • Establish secure, easily accessible e-waste collection bins at designated locations on the campus.
  • Segregate various types of e-waste—such as batteries, circuit boards and screens—to streamline recycling and disposal.
  • Collaborate with certified e-waste recycling companies that comply with environmental regulations and data security standards.
Workflow diagram for safe collection and off-site processing of e-waste

High-level workflow mapping how electronic waste is collected, logged, stored and removed from the preschool campus.

Option 1 · Building & Material Reuse (up to 4 points)

Preserving existing fabric and reducing embodied carbon

Existing preschool building elements identified for reuse
Existing Desert Meadow Preschool components evaluated for structural and non-structural reuse.

Path 3: Incorporation of Reclaimed Building Materials (1 Point)

Utilize previously used components such as structural beams, flooring or partitions within the school facility. This approach requires early coordination and collaboration with vendors who specialize in reclaimed construction materials.

Benefits

  • Budget-friendly: Recovered materials can be more cost-effective than new products.
  • Reduced embodied energy: Limits the energy required to manufacture brand-new materials.

Challenges

  • Limited supply: Sourcing appropriate reclaimed materials can be difficult.
  • Adaptation requirements: Older materials may need customization to fit new construction needs.

Path 1: Repurposing Existing Structural Components (1–5 Points)

Preserve a minimum of 60% of the current building by performing an initial structural evaluation to determine which components—such as beams, columns and slabs—can remain in place.

Benefits

  • Resource efficiency: Reduces demand for newly manufactured structural materials.
  • Heritage value: Maintains buildings with architectural, cultural or community significance.

Drawbacks

  • Design constraints: Existing structure must be upgraded to meet current safety and performance standards.

Path 2: Repurposing Non-Structural Components (1–5 Points)

Reuse interior partitions, framing, doors and other non-load-bearing elements wherever feasible within the preschool retrofit.

Benefits

  • Minimized waste: Fewer demolition materials are sent to landfills.
  • Lower environmental footprint: Reduces extraction, manufacturing and transportation impacts.

Drawbacks

  • Design integration issues: Existing non-structural elements may not align with updated layouts or finishes.
Diagram highlighting new and reused components within the preschool retrofit
Overlay diagram showing where structural, non-structural and reclaimed elements are integrated into the retrofit.

Option 2 · Building & Material Reuse with Life-Cycle Assessment (up to 5 points)

Quantifying impact reductions using ISO-compliant tools

Diagram of baseline preschool building conditions
Baseline condition of the preschool building used as a reference in the LCA.
Illustration of retrofitted building envelope and materials
Retrofitted envelope and material palette developed for the Desert Meadow Preschool concept.
Comparison diagram of baseline vs. retrofitted preschool performance
Side-by-side comparison between baseline and retrofit scenarios to feed into the LCA model.

Goal of the Assessment

Evaluate and compare the environmental performance of the retrofitted preschool against a conventional baseline using ISO-compliant LCA tools such as OneClick LCA, Athena or Tally. Results guide material choices, reuse strategies and sequencing to achieve measurable reductions in embodied carbon and other impact categories.

Impact Reduction & Categories (1–4 Points)

The life-cycle assessment for Desert Meadow Preschool must address the following impact categories, measured per square foot of building area:

  • Global warming potential (GWP)
  • Stratospheric ozone layer depletion
  • Acidification of land and water
  • Eutrophication impacts on water bodies
  • Formation of tropospheric ozone
  • Depletion of non-renewable energy resources
Bar chart showing impact reductions across LCA categories
Conceptual representation of impact reductions for the retrofit across key LCA categories.
Interior concept sketch for Desert Meadow Preschool classroom
Interior concept focusing on natural light, durable finishes and flexible learning zones for preschool students.
Exterior rendering showing shaded outdoor learning and play areas
Exterior retrofit strategy including shaded outdoor learning areas, planting and improved thermal comfort.
Axonometric diagram of Desert Meadow Preschool retrofit strategy
Overall summary board for Desert Meadow Preschool case study