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Urban Design Portfolio

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Trisha A. Kawa Urban Planning + Design
Green Divide
Los Angeles County, United States
Solar Rise Bangkok, Thailand

Solar Rise 01

A study exploring iterative design strategies to achieve an optimized urban form in Bangkok, Thailand.

Group project, Fall 2024

Key Design Strategies:

Vertical density with efficient land use.

Integrated green spaces through sky gardens and rooftop parks

Strategic solar optimization with high-exposure panel placement

Enhanced livability via accessibility, view corridors, and sustainable forms.

Solar Rise is a sustainable urban development proposal that explores computational design strategies to balance high-density development with environmental sustainability and enhanced urban livability. Through an iterative process using Wallacei, multiple design variations were generated and analyzed based on floor area ratio (FAR), green area ratio (GAR), solar gain, and view accessibility to determine the most optimized urban form.

The final design integrates stepped-back podiums, sky bridges, cantilevered extrusions, and rooftop gardens to maximize solar energy capture, improve access to green spaces, and enhance passive cooling. By leveraging parametric tools and data-driven optimization, Solar Rise envisions a future urban landscape that is efficient, adaptable, and sustainable.

Rhino, Grasshopper, Wallacei

OUTPUT OF COMUTATED SIMULATIONS

SELECTION PROCESS

SELECTED ITERATION

FAR: 10

DESIGN

Cantilevered Extrusions
Solar Panels + Terrace Garden
Angled Roofs
Shading ability
Roof Terrace
More space for solar panels
Stepped Back Podium
Enables a greater dimensional ty to ground level
DEVELOPMENT
View of the sky bridge and cantilevered extension with integrated greenery.

Green Divide 02

Addressing green space inequity in Los Angeles County, United States through targeted interventions and urban design strategies.

Individual project, Spring 2025

ArcGIS, Felt Maps

Los Angeles faces a stark imbalance in green space distribution, with marginalized communities experiencing limited access to parks and urban greenery. Unequal Greens is an urban design research and proposal that identifies and addresses these disparities through spatial analysis, community-driven solutions, and sustainable interventions. By utilizing GIS mapping, the project highlights priority zones where green infrastructure is most needed. The proposal explores transforming schoolyards into shared public spaces, integrating eco-friendly materials such as permeable pavements and myceliumbased structures to create resilient, inclusive environments.

7. Climate Change & Future Risks

Increased risks of extreme weather, flood ng, and air pollution disproportionately impact already vulnerable areas, exacerbating social inequal ties and making future adaptat on more difficult

It integrates eco-friendly materials such as permeable pavements and mycelium-based structures to create resilient, inclusive environments. Additionally, the study advocates for policy changes that ensure equitable green space development, improving air quality, reducing heat island effects, and fostering biodiversity Through a data-driven and community-centric approach, Unequal Greens envisions a more just and sustainable urban landscape, where access to nature is a fundamental right rather than a privilege.

6. Policy & Funding Gaps

Green init atives favored wealthier areas, neglecting vulnerable communities

5. Health & Air Quality Issues

Poor air quality and extreme heat led to higher asthma and heat-related illnesses

The Chain Reaction of Green Space

Inequity

1. Redlining & Displacement

Historical zoning and highway expansion restricted

m nority communities, limiting green space access

4.

Lack of trees ncreases temperatures, worsening climate resil ence

3. Unequal Green Space Access
Low-income neighborhoods remained park-poor, while wealthier areas thrived.
2. Lack of Green Investment Marginalized areas received little fund ng for parks, worsening disparit es
Urban Heat Islands

Neighborhoods of color in Los Angeles have Only

less park space per person than white neighborhoods.

of residents live within a 10-minute walk to a park.

10-MINUTE WALKABILITY &TREE CANOPY COVERAGE ANALYSIS

POPULATION BY RACE

LosAngelesResidents

Residents in park-poor neighborhoods of Los Angeles live, on average, 5 3 years less than those in areas with abundant green space. The highest life expectancies (84+ years) are found in West LA, where green space is abundant, while South LA, with limited parks, has life expectancies as low as 75

When park space per person n high-income areas is 100%, it drops to 70% for average-income and just 27% for low-income neighborhoods, highlighting green space disparities in Los Angeles. Neighborhoods with low green space coverage see higher rates of renter displacement, with gentrification increasing in areas where new parks are introduced without affordability protections.

Communities in South LA and East LA face the highest UHI impact, with 40% more direct heat exposure compared to greener West LA areas.

EMERGENCY VISITS FOR ASTHMA

Neighborhoods with less than 20% tree coverage have significantly h gher levels of airborne pollutants, exacerbat ng asthma symptoms.

zones n Los Angeles where low income, commun ties of color, high urban heat, and asthma emergencies overlap, highlighting urgent need for targeted green infrastructure intervention.

CALL FOR ACTION

SUSTAINABLE & INCLUSIVE PLAY ENVIRONMENTS

School grounds have the potential to serve as climate-resilient, health-conscious, and community-driven green spaces. By opening schoolyards dur ng non-school hours, these spaces can function as public parks, enhancing access to green infrastructure n underserved areas. Th s approach maximizes land use, fosters social connections, and provides safe, engaging environments that promote environmental sustainability and community well-being.

FOCUSED ENVIRONMENTAL IMPACTS

Stormwater Management Air Quality Improvement Urban Heat Reduction Biodiversity Promotion

SUPPORTING MATERIALS

Permeable Pavement Mycelium based Structures Cork Flooring & Play Surfaces Bamboo & Reclaimed Timber

CONCEPTUAL VISION

“Cities have the capability of providing something for everybody, only because, and only when, they are created by everybody ” – Jane Jacobs

Elevated Commons 03

Transforming underutilized land beneath the Queensboro Bridge into a dynamic arts and cultural hub in Long Island City, Queens, United States.

Group project, Fall 2023

Rhino, Grasshopper, ArcGIS

Key Design Strategies:

Creating a livable community through residential spaces that support diverse urban living.

Supporting small businesses through commercial spaces.

Emphasizing public plazas and green spaces to encourage social interaction and urban connectivity.

Providing artist studios and galleries to promote cultural expression and creative engagement

The Bridgeside Arts and Cultural Community is a proposal aimed at transforming Long Island City into a vibrant hub for arts, culture, and community engagement. By integrating residential, commercial, and public spaces, the project seeks to foster a dynamic and livable environment that supports artists, small businesses, and local residents.

Key objectives include activating the space beneath the Queensboro Bridge, enhancing connectivity, and maximizing green and public plazas. Through innovative urban design, the proposal reimagines the underutilized site as an inclusive and sustainable cultural destination.

QUEENSBRIDGE PARK

QUEENSBOROBRIDGE

QUEENSBRIDGE NORTH
Long Island City, Site Context

MASTERPLAN

Paths and Circulation
Views & Main Circulation

RESPONSE

Podiums Tower Height Twist Cut Outs Green Roofs
Entrance View below the Bridge

Lot to Living 04

A research-driven study exploring vacant lot utilization in Philadelphia, United States to develop affordable, modular housing solutions for urban infill and the missing-middle housing market.

Research Assistantship, Masters 1st Year

This research explores vacant lot utilization in Philadelphia, aiming to transform underutilized urban spaces into modular, affordable housing solutions. Using GIS mapping, the study identifies vacant parcels and classifies them based on size, zoning, and development potential. The research then develops prefabricated housing typologies, integrating passive solar strategies and CLT mass timber construction to create energyefficient, adaptable housing.

By matching housing typologies to available lots, this proposal offers a scalable, costeffective model for increasing urban density while maintaining livability The findings contribute to ongoing discussions on affordable housing and sustainable urban development, demonstrating how small-scale interventions can collectively reshape the urban fabric.

About the Image: Each rectangle represents a vacant residential lot (approx 900) or row house and each color correlates to the dimensional depth of the lot to reveal how many housing units can fit per site

Rhino,

Data Collection

Used GIS tools to map vacant parcels across Philadelphia. Site Identification

Identified underut lized land using city plann ng records and aerial magery. Lot Categorization

Classified parcels based on dimensions, zon ng regulations, and development potent al. Typology Matching

Aligned vacant lot sizes with appropriate housing typologies to maximize dens ty and livability. Design Integration

Developed modular housing solutions to fit within urban constra nts while enhancing community spaces

VACANT LOT TYPOLOGIES

HOUSING TYPOLOGIES

DESIGN DEVELOPMENT & VISUALIZATION UNIT ALLOCATION BASED ON LOT SIZE

Segregation of potent al res dential unit sizes according to available vacant plots.

A research-driven housing model integrating passive solar design, modular prefabrication, and CLT mass timber construction to enhance energy efficiency, affordability, and adaptability. Scalable for diverse urban and suburban sites, it offers a sustainable and cost-effective solution for the missing-middle housing market

www.linkedin.com/in/trishakawa

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