Portfolio_Architecture Urban Design

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Portfolio

Architectural & Urban Design

-Rajiv de Santana Ribeiro

+1 9292902877

rdr2146@columbia.edu

www.linkedin.com/in/rajiv-ribeiro

https://silkroute4.substack.com/

Introduction

Architectural and urban designer & researcher, recently graduated from Columbia GSAPP’s MS Architecture and Urban Design program. My work focuses on climate adaptation, with an emphasis on how social capital, culture, identity, and traditional knowledge can shape resilient public realms and city policy. With five years of professional experience across architecture, urban design, adaptive reuse, and interiors, I bring both detail-oriented precision and strategic vision. My cross-scalar practice ranges from architectural detailing and material experimentation to master planning and public realm frameworks. I have contributed to projects in the USA, India, and Europe, engaging diverse communities to reimagine more inclusive and climate-resilient urban futures.

DUNAS VIVAS

Spring Semester 2025- Columbia GSAPP Chile| Landscape of Repair | Urban Design

WILKINSBURG RESILIENCE NETWORK

Fall Semester 2024- Columbia GSAPP USA| Community Change | Urban Design

DESIGNING WITH INFORMALITY

2019|Goa College of Architecture India| Informal Settlments | Urban Design

MONTAGNANA REGEN

2017|Edoardo Narne Architects India| Urban Regeneration| Urban Design

COMMUNIDADE

2019|Goa College of Architecture India| Agro Futures| Institutional

OFFICE A

2019-2022|Collective Project India | Sustainable Materials| Office

TALARICHERUVU RURAL SCHOOL

2019-2022|Collective Project India | Learning Spaces | Institutional

NANDI HILLS HOUSE

2019-2022|Collective Project India | Material Experimentation | Homes

COUTYARD HOUSE

2017|Collective Projects India| Interior Design

Architectural and urban designer & researcher, recent graduate of Columbia GSAPP’s MS Architecture and Urban Design program. Focused on reshaping public realm design and policy through social capital, culture, identity, and traditional knowledge within climate adaptation. With five years of experience across architecture, urban design, adaptive reuse, and interiors, I combine detail-oriented precision with strategic vision. My work spans from material experimentation and architectural detailing to master planning and public realm design, contributing to projects in the USA, India, and Europe to foster inclusive, resilient urban futures.

DUNAS VIVAS

[Living Coast, Breathing Dunescape] Concon, Chile

2025| Spring- Columbia GSAPP | 200 Ac

Team: Rajiv Ribeiro, Seunghu Kim, Bimo Wackasana & Jiali Jia

Role: Storytelling, design strategy, renders and diagrams

Chile’s coastline, once continuous, has been fragmented by speculative development following the 1915 construction of the Concon Coastal Road. This project proposes transforming that coastal road into a regenerative trail and park system that reconnects the landscape, beginning at the nowisolated Concon Dune. Through rezoning and ecological restoration, the project blurs the boundaries between city, dune, and road, thus redirecting development away from ecological sensitive areas. The Coastal Brace Program will transform abandoned buildings into public spaces; create no-go zones in the dunes that support biodiversity; and build educational nodes tha promote awareness. A public-private-community consortium will ensure long-term success through inclusive urban design, shared pathways, job creation, and integrated maintenance. The road that once divided will become a lifeline for ecological and social regeneration.

“We believe we are a country, but the truth is we are just a landscape.” —Nicanor Parra.

Concon Coastal Brace

-Dune Stabilization Strategy

To prevent the further de-stabilization of the dunes, the Coastal Braces project envisions a plan consisting of designated trails, no-go zones, a coastal road park , repurposing of buildings in high risk zones and a series of elements that make the dune a public space and economic booster for the citizens of Concon while promoting sustainable tourist destination for the world.

Concon Coastal Brace

-Dune Stabilization Plan

Re-purposed Building

Signage/Wayfinding

Seating

Train

Fence

Coastal Brace

Buggy Transportation System

We’re a Dune city! Lets make our transport unique.

No-Go Fences

Better not disturb the Burrowing Owl

Sandcatcher Park

Have fun with sand and protect the dune too!

Wildlife Viewpoints

Look there! Its the owl of Concon!

Re-purposed buildings

Finally! A way to get down to the coastal road

Such a great day to fish, and

Entry Pavilion Oh! So this is where we enter the dune from.

Dune Ropeways

Im exhausted! Thank goodness for this ropeway.

Plaza + Landmark

Lets commemorate the history of the Dune

Dune Pause-points

Such a good spot to take in the views.

Coastal Boardwalk
walk by the ocean.
Intertidal Ponds Storm surges averted once again!
Sand Reservoir Throw sand here to save the Dunes!

Sanday Trail

The Sanday Trail invites public interaction through playful sand-based spaces like the Sand Catcher, encouraging community-led dune restoration and memory-making through events like Sand Day and everyday engagement.

The biodiversity education trail winds along natural contours and no-go zones, offering scenic viewpoints and quiet learning moments that reveal the dunes as thriving ecosystems rich in wildlife, plants, and sunset beauty.

The Coastal Trail reconnects dunes and shoreline through scenic nodes, repurposed coastal buildings, and a rooftop bridge, while restored vegetation and seamless circulation create a vibrant, resilient, and accessible coastal landscape.

Nature Trail
Coastal Trail

Community Presentation & Discussions

WILKINSBURG RESILIENCE NETWORK

[Building Connections for Learning & Civic Engagement]

Wilkinsburg, Pennsylvania, USA

2024| Fall- Columbia GSAPP | 87 Ac

Team: Rajiv Ribeiro, Maissa Eid, Yasmina Hamdan & Zhongyang Huang

Role: Story-telling, research and mapping, design framework, axonometric drawings, renders

The Wilkinsburg Resilience Network aims to empower the borough of Wilkinsburg to address long-standing issues such as blight, population decline, and socioeconomic disparities while preserving its identity as a tight-knit, independent community. By engaging with stakeholders such as the borough council, land bank, and young community leaders, the project proposes a sustainable, ground-up approach to urban realm revitalization to complement the work done by the land bank in acquiring titles for vacant housing. Central to the initiative is the formation of the Wilkinsburg Innovation and Resilience Collective, brings together existing community groups and universities under a common umbrella to leverage digital innovations in public space to improve the public realm.

CONNECTIVITY

Resilience

Through Learning Resilience Through Sharing Resilience Through Growing Resilience Through Bonding

Learning by enhancing outdoor learning and work spaces around the Public Library

Sharing through pooling resources. Community Kitchens, markets, toolcoops, public creches.

The public school becomes a resilience hub for programs to grow native vegetation

Bonding by providing a space for citizens to voice their opinions and needs- Re-vitalizing the public library.

RESILIENCENETWORK

DYNAMIC URBAN SPACES

WILKINSBURG

03

DESIGNING WITH INFORMALITY

[A Footprint for Changing Informal Settlements] Pune, India

2019| Academic- Goa College of Architecture | 8 Ac

Slum upgrade programs have evolved tremendously over the years. Strong political will, organization at various levels, community participation, and flexible designs are essential for the success of these programs which not only provide basic services and infrastructure but also socio-economic benefits to residents. In India government schemes such as JNNURM and RAY have increased the number of such programmes, out of which the insitu slum upgrade of Yerwada is the most prominent. There is a need to find a model of upgrading informal settlements in the Indian context which can be applied on a large scale and which provides maximum benefits with minimum holistic inputs.

Netaji Nagar is one of the informal settlments of Yerwada slum. Upgraded in 2012, the settlement was the pilot project for the in-situ slum upgradation program in the slum. The ‘Designing with Informality’ publication critiques this pilot project and suggest a toolkit to improve such programs.

Netaji Nagar In-situ Upgrade (Credits:Filipe Balestra)
Community Meetings (Credits:Filipe Balestra)

Tenure

Strengthening tenure security directly motivates residents to invest in their homes and communities. In settlements like Yerwada, this leads to vertical expansion, improved sanitation, and beautification demonstrating how secure tenure catalyzes both incremental upgrading and a deeper sense of belonging.

Extended Domesticity

In-situ slum upgradation preserves ground-sky connections, enabling residents to extend domestic life. Street-facing staircases and otlas reclaim space, support multifunctional use, and foster community through adaptable, residentdriven spatial interventions.

Complexity

Retaining the existing urban fabric preserves not just structures, but the intricate networks, relationships, and cultural patterns that shape daily life. This complexity is not incidental, it actively sustains the identity, agency, and continuity of each resident’s lived experience.

The settlement exhibits two distinctly contrasting systems of growth. One follows a formal and regulated construction system, which is seen in the upgraded units while the other is informal and unregulated. Both rely on local vendors and craftsmen. Tenure, type of building (Kaccha or Pucca) and size of family determine the type of expansion systems residents deploy for their units.

Street Staircase
Verandah Plugin
Terrace Shelter Verandah Staircase Storage Overhang Terrace Plugin
Terrace Utility
Terrace ShelterFacade Structure
Street Toilet
Addition
Plugin
Growth of Netaji Nagar after In-situ Slum Upgrade

MONTAGNANA REGEN

[Bastion Reclaimed]

Montagnana, Italy

2017| Edoardo Narne Architect | 2 Ac

Montagnana Regen is a project in the historic fortified town of Montagnana developed with the commune to boost tourism, enhance public spaces, and expand housing while creating sustainable funding.

The first proposal converts a former parking site into a boutique hotel and tasting center celebrating Montagnana’s renowned ham. By linking the fort walls and entrance plaza, it becomes a civic connector that integrates public space, hospitality, and heritage. The second proposal repurposes the abandoned barracks into lowcost co-housing. Modular units slot into the existing structure, preserving its fabric while enabling affordable living. Shared gardens, workshops, and communal services foster collaboration, while cycling and pedestrian networks connect the site back to the town.

Together, the proposals position Montagnana Regen as a catalyst for cultural and social renewal, transforming underused sites into resilient community assets.

2.Regeneration of the

FormerTrevisianMilitaryBarrack s

1. Regeneration ofPiazzaTriesteandFortWalls
Connection to the Historic Fort Walls
Cultural & Heritage Tourism
Public Spaces
the Town Scale Art to Regenrate Public Spaces
Families Housing
Oriented Spaces Capacity Building Re-purposing the Historic Barracks
Pedestrian Oriented Design
Extending the existing Plaza
Easy Connection to the Fort Walls
Maintaining the Town Scale
Art to Regenerate Public Spaces
Boosting Cultural Tourism
Boutique Hotel
Completed Piazza Triestre
Trevisian Barracks
Existing Barrack Walls
Timber Structure Slotted in
Double Height Living Space
Existing Barrack Walls

05

COMMUNIDADE

[Replenishing Goa’s Agri-Commons]

Panjim, Goa

2019| Academic- Goa College of Architecture| 4 Ac

Goa is a small state located on the west coast of India. A former Portuguese colony, vast swathes of Goa consisted of lowlands were primarily marshy. To make this marshy land habitable and suitable for farming, Goans found a unique system of land and water management which accounted for biodiversity and waterflow. Nearly 18,500 ha of marsh land was converted into farmland, known in the local language as khazans. In most cases these Khazans are administered by cooperatives known as Comunidades. Local knowledge of the tidal clock and principles of salinity regulation played a key role in the maintenance of the khazan infrastructure. This network of bunds, sluice gates, agricultural land, and mangroves were built with the natural contours of the land and served as a protection against both coastal and stormwater flooding. The Khazans serve as an early example of a nature-based solution for storm protection. In recent years, climate change and urbanisation has threatened this landscape and this project aims to strengthen the Communidades in order to repair this vital ecosystem while maintaining the urbanisation demands of Goa.

Communidade Land- A Sponge for Goa
Communidade Center- Strengthening Traditional Knowledge and Systems

Allowing Streams to Flow

Creating Public Access

Blocks= Function

Building an AgriCommons

A New Agri-Commons

With climate change affecting agricultural production in Goa due to the unpredictable nature of the monsoons, the need for providing controlled environments that can sustainably maximize production is the need of the hour. The triangular grid enables the administration of communidades to allocate/ lease land to farmers or researchers according to their needs. The triangles provide contained units where water and soil content can be controlled.

1 Convention Center

2

3 Mangrove Park

1 Agri-Research Labs

2 Co-working spaces

3 Training & Skill Center

4 Car Entry

5 Lobby

6 Canteen

In-between Spaces and Circulation Paths

1 Agri-Roof

2 Admin

3 Labs

4 Archives

5 Library

1 Museum 2 Food Bazaar (Market)

Scaling Up- Communidade Public Spaces

This project proposes a new landscape vision for Goa. It offers a two-part framework: first, a new approach to building on communidade land that balances agriculture, urban life, and ecosystem health; second, the transformation of bunds (embankments) and waterways into public spaces that reconnect communities with their landscapes and shift how Goans perceive and engage with their environment.

OFFICE A

Jubilee Hills, Hyderabad

2019-2022| Collective Project| 20000 sqft Budget: $ 2 mil

Role: Lead architect. Managed the architecture team from concept design to completion of civil work. Coordinated with clients, vendors, and consultants.

Although the project is titled “Actors Office,” the building represents much more than a workspace. Completed till the civil works, the building is designed to embody the persona of its client, a renowned Tollywood actor. The structure is tailored to accommodate a diverse range of activities: professional, creative, and recreational. It serves not only as an office but also as a dynamic hub for collaboration and leisure for the actor and their staff.

The complex program led to a design characterized by an interplay of spatial hierarchies and relationships. At its core, the structure features a largespan waffle slab supported by composite columns, lending strength to the upper levels. These upper floors, which house the actor’s main office and recreational spaces, are enveloped in cement blocks punctuated by jalis and thoughtfully positioned openings. This interplay of solid and perforated surfaces allows light and ventilation to flow seamlessly while maintaining privacy, adding an architectural rhythm that resonates with the client’s creative essence.

Concrete Lattice

One of the client’s key requirements was a large, column-free space serving as both a parking area and an event venue. A waffle slab supported by composite steel columns provided the necessary height and span.

Play of Volumes

The client requested a variety of spaces with differing heights, materials, and textures to create visual and spatial diversity, while still maintaining a cohesive sense of uniformity throughout the design.

Light-filled Spaces

To balance the client’s request for abundant natural light with the need to mitigate Hyderabad’s intense heat, a series of post-tensioned concrete skylights were strategically integrated, providing both illumination and thermal protection.

TALARICHERUVU RURAL SCHOOL

Andhra Pradesh, Goa

2019-2022| Collective Project| 15400 sqft

Budget: $1.5 mil

Role: Finishing, site coordination, final design detailing & studies

Located in rural Andhra Pradesh, our proposal reimagines an existing L-shaped school building for the children of cement plant workers into a vibrant, inclusive, and climate-responsive learning environment. A lightweight bamboo canopy weaves together new program pavilions and the existing structure, blurring the boundary between inside and outside while providing shade from the intense sun. Bamboo, a fast-growing and renewable resource with a high strength-toweight ratio, is central to the design, offering a low-impact, carbon-sequestering alternative to conventional materials. Its use supports sustainable construction practices and local economies.

Color activates the existing façade, while new jalis ensure ample crossventilation in all classrooms. Strategically placed “tree islands” create moments of shade and respite, transforming a once-barren site into a lively, nurturing campus rooted in ecological sensitivity and human dignity.

Bamboo Canopy- Shaded Outdoor Spaces
Cooling Retrofit

NANDI HILLS HOUSE

Bengaluru, India

2019-2022| Collective Project| 6500 sqft Budget: $1.2 mil

Role: Conducted material studies and sampling as well as assisted in design studies and concept presentation

Granite is a stone that is local to Bengaluru and the regions surrounding it. Mostly used as a construction material in flooring, it is highly sort after and the hills surrounding the city have become large sites of extraction and destruction of the local ecosystem. A large amount of the stone debris after extraction goes to waste. But is there a way to use this discarded material ? The project reimagines a way of using this wasted granite.

This residential project is located in the scenic Nandi Hills Valley in the outskirts of Bangalore. The design strategy revolves around opening the building up to its surroundings and creating framed views of the hills beyond. The waste granite is integrated into the facade of the structure to create a monolithic design that blends into its surroundings.

Play with Form
Granite- A Sustainable Material
Granite- Waste to Wealth

Light, Form and Granite

Through strategically positioned openings, jalis and skylights, the project aimed to open up the surrounding house to the surrounding hills and greenery.

Courtyard House

Hyderabad, India

2019-22|Collective Project | 150 sqft

Role: Conducted material studies, material sourcing as well as assisted in design studies and rendering.

Designed as a contemporary reinterpretation of the traditional courtyard house, this project integrates the landscape into every aspect of the interiors. Throughout the home, an interplay of patterns, textures, and materials creates a dynamic yet harmonious interiors. Every design element is thoughtfully curated to reflect the user’s aesthetic sensibilities while reinforcing the home’s intrinsic connection to its lush, planted courtyards.

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