What Sanon Sen & Associates does

Sanon Sen & Associates is a Kolkata-based architectural and planning firm founded in 1958 by V P Sanon and P M Sen and currently led by Principal Architects Harsh Sanon and Seema Sanon. The firm operates as a private partnership with 11–50 employees from its headquarters at 5, Russel Street, Kolkata, delivering architecture, interior design, and engineering services across six service lines: residential, commercial, industrial, hospitality, educational, and a dedicated interior design practice branded 'Brick by Brick,' supplemented by renovation and conservation work.

The client base is enterprise-led and includes luxury hotel operators (JW Marriott Kolkata, Park Hyatt Kolkata, Park Hotel), industrial manufacturers (Vikram Solar, Landys & Gyr at Baddi, MACO at Dulagarh), warehousing/logistics operators (Arcadia at Uluberia), and premium residential developers (Sugam Homes). The firm extends its in-house capacity through collaborations with international architecture practices including Skidmore Owings & Merrill New York, Aedas, 10 Design, Lead 8, SRSS Singapore, Hafeez Contractor, and Piercy & Company, supplemented by specialist structural, MEP, geotechnical, and landscape consultants in India.

Revenue is generated through project-based professional services fees for architecture, interior design, engineering, and project management. The firm does not disclose pricing, does not publish revenue, and takes no external capital; it operates as an independent family-managed partnership. Geographic footprint is concentrated in Kolkata and West Bengal with evidence of project work in Jaipur, and no claimed global presence.

Name

Sanon Sen & Associates

Legal name

Sanon Sen & Associates

Website

https://sanonsen.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

11–50 employees

Short description

Sanon Sen & Associates is a Kolkata-based architectural and planning firm founded in 1958, offering full-service architecture, interior design, and engineering across residential, commercial, industrial, hospitality, and educational projects for enterprise clients in India.

Ownership category

akta.pro rank

Product category

Architecture Services

NAICS

Architectural Services (541310), Architectural Services (54131), Interior Design Services (54141), Interior Design Services (541410)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Engineering Services (8711)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Office & Corporate Building Construction (IMAFACAA), Hospitality & Entertainment Venue Construction (IMAFACAC), Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Architectural design services
• Residential architecture
• Commercial architecture
• Interior design services
• Hospitality architecture

Headquarters

HQ city

Kolkata

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural Design Services: Project-based fees for architectural design, interior design, and engineering services for residential, commercial, industrial, educational, and hospitality projects. Revenue generated through design fees, project management, and consulting services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Sanon Sen & Associates is an architecture and planning firm that designs residential, commercial, educational, industrial, and hospitality buildings for enterprise and developer clients, supported by structural, MEP, and landscape engineering consultants. The practice also runs a specialist interior design service called "Brick by Brick" and undertakes renovation and conservation projects. Services span concept design through construction documentation and project management, delivered primarily in Kolkata, West Bengal, and select pan-India locations.

Product overview

Sanon Sen & Associates is a Kolkata-based architectural firm founded in 1958, offering a unified suite of architectural and design services. The firm operates across six interconnected service lines: Residential Architecture (apartments, villas, bungalows), Commercial Architecture (offices, IT parks, malls), Educational Architecture (institutions, colleges), Industrial Architecture (factories, warehouses), Hotel Architecture (hospitality projects), and Brick by Brick (interior design services). The firm also provides renovation and conservation specialist services. Major projects include JW Marriott Kolkata, Park Hyatt Kolkata, The Summit in Salt Lake, and various residential developments across Kolkata.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture Services Design and architectural services for residential projects including apartments, bungalows, condos, and private residences across Kolkata and other locations, targeting developers and homeowners.
• Commercial Architecture Services Design and architectural services for commercial buildings including office towers, IT parks, tech parks, shopping malls, and business centers for commercial and corporate clients.
• Educational Architecture Services Architectural design services for educational institutions including academies, colleges, and cultural institutes.
• Industrial Architecture Services Design services for industrial facilities including factories, warehouses, manufacturing plants, and processing units for industrial and logistics clients.
• Hotel Architecture Services Architectural design services for hospitality projects including hotels and guest houses, with marquee projects such as JW Marriott Kolkata, Park Hyatt Kolkata, and Park Hotel.
• Brick by Brick (Interior Design) Interior design services for residential and commercial spaces including private lounges, spas, retail spaces, and guest houses, providing the firm's specialist interior design practice under the "Brick by Brick" brand.

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

14 partnerships are on record, tiered core, flagship and minor.

• Hafeez ContractorcoreStrategic or Co-development PartnerCollaboration with renowned architect Hafeez Contractor for architecture and design projects. The partnership enhances the firm's design capabilities and market credibility.
• 10 DesigncoreStrategic or Co-development PartnerCollaboration with international architecture firm 10 Design for design and development projects, bringing global design expertise to projects.
• Lead 8coreStrategic or Co-development PartnerPartnership with Lead 8, an international design and architecture firm, for collaborative design projects.
• SRSS SingaporecoreStrategic or Co-development PartnerCollaboration with SRSS Singapore for design and architecture projects, adding regional expertise.
• Skidmore Owings & Merrill New YorkflagshipStrategic or Co-development PartnerCollaboration with SOM New York, one of the world's leading architecture firms, for high-profile design projects. SOM is known for iconic structures globally.
• Piercy & CompanycoreStrategic or Co-development PartnerPartnership with Piercy & Company, a UK-based architecture firm, for design collaboration.
• Spectrum Design GroupminorStrategic or Co-development PartnerCollaboration with Spectrum Design Group India for design projects.
• AedascoreStrategic or Co-development PartnerCollaboration with Aedas for SilverOak concept project. Aedas is a global architecture firm with expertise in design excellence.
• C.P. Khanra & AssociatescoreTechnology or IntegrationStructural engineering consultant partnership for building structural design and analysis.
• S.P.A. ConsultantscoreTechnology or IntegrationEngineering consultancy partnership for project design and technical consulting.
• S.N. Joshi ConsultantscoreTechnology or IntegrationMEP (Mechanical, Electrical, Plumbing) engineering consultants for building systems design.
• UNITEcoreTechnology or IntegrationMEP consulting partner for building mechanical, electrical, and plumbing systems.
• Layers Design StudiocoreTechnology or IntegrationLandscape architecture consultancy for site planning and landscape design.
• GeoconcoreTechnology or IntegrationSoil technology and geotechnical engineering consultant for site analysis and foundation design.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Direct peers

• Morphogenesis: New Delhi-based award-winning Indian architecture firm recognized for sustainability-led design across residential, commercial, educational, and hospitality sectors. Directly comparable as a premium Indian architectural practice with multi-typology capability.
• Edifice Architects: Mumbai-headquartered Indian architecture practice delivering residential, commercial, and hospitality projects for enterprise developers. Comparable as a multi-typology Indian architectural firm with similar client engagement model.
• HCP Design Planning and Management Pvt. Ltd. Mumbai-headquartered Indian architecture and planning firm working across residential townships, commercial, institutional, and hospitality projects. Highly comparable as a full-service Indian architectural practice with a comparable enterprise client base and project typologies to Sanon Sen & Associates.
• SJK Architects: Mumbai-based Indian architecture firm delivering residential, commercial, and hospitality projects with a strong design-led positioning. Comparable to Sanon Sen & Associates as a premium multi-typology Indian architectural practice.
• C.P. Kukreja Architects: New Delhi-based Indian architectural firm with decades of heritage, working across residential, commercial, hospitality, and institutional typologies. Comparable as a legacy Indian architecture firm serving enterprise clients across multiple building types.
• RSP Design Consultants (now RSP Architects): Bengaluru-based Indian architecture firm with a long heritage, delivering large-scale residential, commercial, and institutional projects across India. Comparable to Sanon Sen & Associates as an established, full-service Indian architectural practice with similar enterprise clientele.
• Hafeez Contractor: One of India's largest and most prolific architecture practices, headquartered in Mumbai, delivering large-scale residential, commercial, hospitality, and institutional projects. Listed as a documented strategic collaborator of Sanon Sen & Associates, directly comparable as a premium Indian architecture firm serving enterprise real estate clients.

Broad incumbents

• Skidmore Owings & Merrill (SOM): World-leading global architecture and engineering firm, listed as a flagship strategic collaborator of Sanon Sen & Associates. Comparable as a much larger incumbent offering architectural services at a global scale across the same building typologies.
• Aedas: Global architecture firm with significant Asia presence and a documented strategic partner of Sanon Sen & Associates (SilverOak concept). Comparable as a much larger incumbent in the same architectural design space, with overlapping hospitality and mixed-use capabilities.

Others

• Foster + Partners: Global architecture practice with a growing India presence, operating in hospitality, commercial, and mixed-use sectors. Comparable as a global architectural services competitor and ecosystem participant in the same premium design space as Sanon Sen & Associates.

Market position

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sanon Sen & Associates