For over 20+ years, Architects Rinki and Mihir Kotak of 4th Dimension have been redefining town planning, architecture, and luxury interiors with their visionary, design-forward approach. Read on to know more.
Design firm 4th Dimension has carved a niche for itself as an award-winning practice that elevates architecture into a refined art form. Renowned for creating transformative, enduring spaces, the firm—led by visionary architects Mihir and Rinki Kotak—brings over two decades of expertise in seamlessly blending architecture, interior design, and town planning to craft environments that are both thoughtfully functional and aesthetically timeless.
Their multidisciplinary services span residential, mixed-use, and institutional projects, each tailored with precision, creativity, and care. Every design is rooted in thoughtful detailing and a deep understanding of context, function, and lifestyle. 4th Dimension’s philosophy is driven by collaboration, creativity, and meaningful design. They foster a positive, people-focused work culture where innovation thrives, and client relationships are built on trust and transparency. Their longstanding clientele and repeat collaborations stand as a testament to their commitment to quality and satisfaction.
Rather than pursuing aggressive expansion, the firm believes in steady, organic growth, prioritising timely delivery and word-of-mouth recommendations. This approach ensures focused attention and excellence across all projects. Recognised with accolades like D’list India, FOAID, and Ace Tech, their work has also been featured in top publications such as Society Interiors and Design, Good Homes, and Architectural Digest, along with notable collaborations with brands like Grohe.
4th Dimension is more than a design studio – it is a collective of passionate minds dedicated to weaving timeless artistry into the spaces people inhabit.
Project Name: Kongoan
Project Typology: Mixed-use retail outlet designed for the Phoenix Group
Location: Kalyan
Area: 25 acres + land parcel
Timeline: Ongoing/Completed
Design Team: Ar. Yashasri Bhiwandkar and Ar. Niyati kothari
Project Description: Inspired by the terrace gardens of Babylon this structure is part of a complete township. This project is a self-contained area with all conveniences and amenities. There is retail shopping mall with food courts and restaurants,the largest banquet in the area, offices and co-working spaces. Residential hotel, school, hospital and residential tower with ample open spaces.
In an exclusive interview with Society Interiors and Design, the dynamic duo Ar. Mihir Kotak and Ar. Rinki Kotak shares their inspiring journey of pushing design boundaries through creativity, collaboration, and Innovation.
How would you define your design language today? In what ways has it evolved over the years, with experience, technological advancement, and changing design sensibilities?
At 4th Dimension, our design language today is best described as contextual, timeless, and experiential. It is deeply rooted in human-centric design, spaces that don’t just look beautiful but function intuitively and emotionally resonate with users. Over the years, experience has taught us to balance bold creativity with practical elegance. Technological advancements have empowered us to test ideas more fluidly. The changing sensibilities of society, toward minimalism, sustainability, and wellness, have naturally woven themselves into our design DNA.
How has material innovation influenced your architectural approach? Could you share a project where your choice or experimentation with unconventional materials significantly impacted the design outcome or user experience?
Material innovation plays a crucial role in how we shape environments. It’s not just about choosing new finishes, it’s about reimagining what materials can do. Whether it’s using perforated metal sheets to create light-filtering facades or exploring sustainable composites in interiors, we constantly push boundaries.
In one of our recent institutional projects, we experimented with compressed stabilized earth blocks and reclaimed wood. The result was a structure that not only blended into its natural context but also resonated with the users at an emotional level. The tactile quality of the materials, their environmental consciousness, and the interplay of light and texture enriched the experience of the space.
Sustainability is increasingly central to architecture today. How do you incorporate sustainable practices— be it passive design, local materials, energy efficiency, or adaptive reuse— into your projects? Can you share your views on the same?
Sustainability for us is not a trend, it’s a responsibility. We view it as a holistic mindset that begins at the drawing board. Our projects integrate passive design strategies such as optimal orientation, natural ventilation, and daylight harvesting. We also prioritize locally sourced materials, low-VOC finishes, and encourage clients to consider energy-efficient systems.
One of our core beliefs is that good design should outlive trends. In that sense, sustainability also means building spaces that age well and remain relevant over time. We’re also exploring adaptive reuse where appropriate, rethinking existing structures instead of starting from scratch when possible. Every small step contributes to a larger impact.
How does your design strategy shift between typologies? For example, while designing a personal residence versus a public or commercial architectural space?
Designing a personal residence is an intimate, collaborative journey, focused on the client’s personality, lifestyle, and daily rituals. It’s about creating a deeply personal space where privacy, comfort, and emotional resonance matter most. In contrast, public or commercial spaces prioritize broader user experience, efficiency, and brand identity. Here, design becomes more data-driven, with greater emphasis on movement patterns, accessibility, and stakeholder input. While the scale and audience differ, core values like clarity in planning, aesthetic cohesion, and material honesty remain constant, adapting to context whether it’s a private retreat or a high-traffic, multi-user environment.
What defines your work? What type of projects challenge you the most?
Our work is defined by a commitment to crafting spaces that elevate everyday experiences. Whether it’s a small urban apartment or a large institutional campus, we approach every project with the same intent: to create design that is responsive, refined, and resonant.
The most challenging projects are those with tight constraints, be it space, time, or budget. Yet, these often yield the most innovative solutions. Constraints push us to think differently, whether it means rethinking circulation, layering spaces for multiple uses, or using materials in unexpected ways.
What are your forthcoming projects?
We’re currently working on a diverse portfolio that includes a private residential villa, an educational campus, and a commercial co-working hub. Each of these projects offers a unique challenge and the opportunity to further our mission of design-led transformation.
What advice would you give to emerging architects today, especially those passionate about experimentation but still in the process of developing their distinct design voice?
Design is not just about standing out, it’s about standing for something. Our advice would be to stay curious, stay grounded, and never lose sight of the human aspect of architecture. Experimentation is vital, but it must be rooted in purpose. Immerse yourself in real-world contexts, learn from constraints, and don’t rush the process of finding your voice.
From 4th Dimension’s expansive body of work, we compile three core segments that define their expertise: Townships, Architecture, and Luxury Interior Design.
Holistic Township Design
At 4th Dimension, township design is about more than constructing buildings—it’s about shaping self-sustaining communities that encourage connection, functionality, and quality living. Inspired by Le Corbusier’s philosophy that “Architecture is the learned game, correct and magnificent, of forms assembled in the light,” the firm views each township as a complete ecosystem—designed to foster belonging and ease of life.
Their design emphasizes purposeful simplicity, with a focus on natural light, ventilation, and multifunctional open spaces. Amenities are thoughtfully placed to encourage interaction, while architecture supports daily rhythms. Each plan seeks a balance between density and openness, structure and spontaneity.
From compact developments like Balaji Classica to expansive nodes like Venus Skky City, every township reflects a people-first mindset—rooted in sustainability, functionality, and the lived experience. At its core, 4th Dimension’s township design creates environments that grow organically and adapt meaningfully to the people they serve.
Project Name: Balaji Classica
Project Typology: Township project by SSlifespace
Location: Uslaghar
Area: 5 acres
Timeline: Ongoing
Design Team: Ar. Niyati Kothari & Ar. Bhushan Telavane
Project Description: Balaji Classica is a 5-acre township thoughtfully designed by 4th Dimension to balance density with openness. The residential towers are oriented for optimal light, ventilation, and privacy, while the master plan promotes seamless circulation and social interaction. With integrated green zones and a central community spine, the design fosters a connected, breathable, and functionally rich living environment.
Project Name: Venus Skky City
Project Typology: Township project for Venus Nirvana
Location: Dombivali
Area: 30 acres
Timeline: Ongoing
Design Team: Ar. Niyati Kothari & Dr. shahbaaz Chaudhry
Project Description: Venus Skky City is a 30acre integrated township designed by 4th Dimension with a focus on phased growth, spatial clarity, and community integration. The masterplan balances high-density residential towers with well-connected public zones, green corridors, and walkable streets. Each phase is designed to evolve cohesively, ensuring long-term usability, visual harmony, and a strong sense of place for its residents.
The Architectural Ethos of 4th Dimension
At 4th Dimension, architecture is a medium to craft spaces that are contextual, functional, and emotionally resonant. Every project is shaped in response to its environment, users, and the evolving demands of the future.
The firm’s design approach is rooted in clarity and purpose, favoring sitespecific solutions over formulaic design. Principles like natural light, ventilation, circulation, and adaptability anchor their spatial planning—ensuring each space feels intuitive and enriching.
A distinct architectural identity, climate-conscious thinking, and user-focused detailing guide their process, allowing the built form to enhance experience without overpowering it. 4th Dimension also emphasizes the seamless integration of architecture and landscape, softening boundaries to create holistic environments.
Institutional Architecture
Project Name: B.ED. COLLEGE, Sandip university
Project Typology: Institutional college building for Sandip University
Location: Sujol, Bihar
Area: 100 acres land parcel
Timeline: Ongoing/Completed
Design Team: Ar. Bhushan Telavane
Project Description: This project is part of a large project where we have also designed the sports arena, girls’ hostel and staff quarters and temple area.
Architecture – Commercial Architecture
Project Name: The Edge
Project Typology: Commercial architecture – Admin office for Dodhia group
Location: Surat
Area: 35,000 sq.ft. Timeline: Ongoing
Design Team: Ar. Niyati Kothari & Ar. Bhushan Telavane
Project Description: The Edge is a 35,000 sq.ft. commercial office space designed as the new administrative headquarters for the Dodhia Group in Surat. Conceived with sustainability at its core, the project is targeting Platinum LEED Green Building Certification. The design seamlessly integrates multiple levels to create a cohesive and visually connected workspace, fostering openness and collaboration. Through thoughtful planning, natural light, and energy-efficient systems, The Edge sets a benchmark for environmentally responsible and future-forward commercial architecture
Architecture Residential & Mixed use development
At 4th Dimension, residential and mixed-use architecture blends context, clarity, and community, prioritizing spatial efficiency, natural light, and human connection to create timeless, adaptable living environments.
Project Name: Alag One
Project Typology: Commercial project for Alag Developers
Location: Ghatkopar, Mumbai
Area: 87,000 sq.ft.
Timeline: Ongoing/Completed
Design Team: Ar. Jitendra Kori
Project Name: Advani
Project Typology: Mixed-use Architecture for Tridhev Developers
Location: Mulund West, Mumbai
Area: 2,97,000 sq.ft.
Timeline: Ongoing/Completed
Design Team: Ar. Niyati Kothari & Ar. Bhushan Telavane
Project Name: Shanti Heights
Project Typology: Residential Architecture for SKN Infra group
Location: Matunga, Mumbai
Area: 3,75,000 sq.ft.
Timeline: completed
Design Team: Ar. Bhushan Telavane
Architecture, Residential and Mixed Use Development
Project Name: Solitaire Edge
Solitaire Edge is a 4,25,000 sq.ft. residential tower located in Kandivali, Mumbai, designed by Ar. Niyati Kothari and Dr. Shahbaaz Chaudhry for Mahaveer Construction. The design reflects a modern, efficient approach to high-rise living, where architectural clarity meets functional precision. The building’s façade is kept clean and bold by smartly managing services through shared ducts at the rear, ensuring an uncluttered front elevation. Internal planning minimizes service shafts, optimizing usable space on every floor. The tower culminates in a landscaped terrace that brings nature into the vertical fabric—offering a serene outdoor environment at the city’s skyline.
Project Name: CurveX
Location: Raipur, This striking highrise designed by 4th Dimension exemplifies modern architectural finesse with a bold, curvilinear form and rhythmic facade composition. Clad in warm-toned materials, the building features alternating bands of full-height windows and textured panels, creating a dynamic play of transparency and solidity. The tower’s sculpted silhouette softens its mass while enhancing visual fluidity, making it a distinctive presence in the skyline. Smart integration of greenery on upper-level terraces adds a biophilic touch, while the ground floor’s transparent edge opens the structure to the street.
Project Name: Regalis – Not disclosed
Location: Worli, Mumbai, Standing tall in the upscale heart of Worli, Regalis is a tribute to timeless architectural elegance. Designed by 4th Dimension, the tower draws inspiration from classical proportions and vertical grandeur. Its regal façade, detailed with golden accents and bold geometry, brings together tradition and modernity in perfect harmony. The crown-like structure at the top adds a sculptural identity, while the clean elevation conceals a meticulously planned service core. A doubleheight lobby and refined street presence mark the beginning of a truly luxurious living experience.
Architecture – Villa
At 4th Dimension, villa architecture is driven by a deep respect for context, lifestyle, and spatial harmony. Each villa is designed to feel open, grounded, and timeless, blending luxury with warmth through seamless indoor-outdoor connections, natural light, and thoughtful spatial flow. Whether nestled in nature or set within a gated community, these homes reflect the unique aspirations of their inhabitants. Passive design principles, rich material palettes, and tactile finishes enhance both comfort and character. Every villa is more than a residence— it’s a personalized sanctuary, crafted with clarity and purpose to support mindful living and a deep, lasting connection to space.
Project Name: Suffuse Villa for Mr. Surendra Babu
Project Typology: Villa Architecture
Location: Anantpur
Area: 50,000 sq.ft.
Project name: Taisho, Twin bungalows for Agarwal brothers
Project Typology: Villa Architecture
Location: Bhubaneshwar, Odisha
Area: 50,000 sq.ft on 4 acres of land
SMPR – Educational Architecture
Initiated in February 2023, SMPR College is envisioned as a timeless institution built to stand strong for the next 100 years. Spanning 2,00,800 sq. ft., the design reflects the concept of timeless elegance through a bold, contemporary architectural language. A standout feature is the floating staircase, designed around a single central column with surrounding voids. Overall the institue is being redeveloped into a statement building that not only is aesthetic but also has interesting interactive spaces within the structure.
Luxury Interior Design
At 4th Dimension, luxury interior design is more than just visual appeal—it’s a narrativedriven process rooted in authenticity, emotion, and individuality. Each space, whether residential or commercial, is treated as a personal story, shaped by the people who will live or work within it. The firm’s philosophy centers on creating interiors that feel timeless and meaningful, not dictated by trends but by the lifestyle and aspirations of the users.
Residential Interiors
Espresso Elegance is a completed residential project located in Mulund, Mumbai, spanning 3,600 sq. ft. Designed by Sr. Interior Designer Irfan Khan, along with Rahul Rathod and Yash Sharma, the home is defined by its rich, warm tones and contemporary aesthetic. The design takes inspiration from the depth and sophistication of espresso hues, creating a space that feels both inviting and refined.
Alabaster Nest is a completed residential project located in Andheri, Mumbai, spanning 2,425 sq. ft. Designed by Sr. Interior Designer Irfan Khan, along with Rahul Rathod and Yash Sharma, the project showcases a refined approach to contemporary living. With a focus on elegant spatial planning and thoughtful detailing, Alabaster Nest offers a warm and sophisticated urban home that blends comfort with modern aesthetics.
Earthy Escape is a completed residential project located in Mulund, Mumbai, covering an area of 3,000 sq. ft. Designed by Sr. Interior Designer Irfan Khan and Rahul Rathod, the home embodies a warm, grounded aesthetic that lives up to its name. With a design language rooted in natural textures, Earthy tones, and serene spatial planning, the project offers a tranquil urban retreat that seamlessly blends comfort with contemporary elegance.
Timeless Roots is a completed residential project located in Thane, spread across 2,750 sq. ft. Designed by Sr. Interior Designer Manali Bhambere, along with Ziya Shaikh and Manasvi Patel, the home is a seamless blend of tradition and modernity. With a design narrative rooted in warmth and heritage, the space features natural textures, curated details, and a balanced layout that fosters both comfort and character. The result is a residence that feels grounded yet contemporary, reflecting its name with grace.
