Kolkata's IT hub, with a project that matches its ambition
Harbour One is a new premium commercial development at Plot E1, Block EP & GP, Sector V, Salt Lake — the address that India's largest IT and business services companies have called home for three decades. Developed and being delivered for possession in 2031, it is one of the few new-build commercial projects in Sector V to be registered under RERA, bringing the transparency and regulatory assurance that institutional buyers and serious investors now expect as standard.
A campus, not just a tower
The project is conceived as a self-contained commercial campus: two G+12 office towers as its centrepiece, a dedicated club building for occupier wellness and hospitality, and a separate G+3 retail block that brings food, convenience and services within the campus boundary. This campus format — rather than a single standalone tower — reflects how large IT and corporate occupiers think about their workplaces today.
Floor plates built for real business
Office configurations start at 1,650 sq. ft. — sized for established businesses, boutique firms and regional offices — and scale up through 3,600 sq. ft., 4,400 sq. ft. and full-floor plates of 12,000 sq. ft. for large corporate occupiers or investors buying for yield. The range means Harbour One can accommodate a single high-growth startup as readily as a multinational seeking a full floor in Kolkata's most established IT district.

Salt Lake Sector V has delivered the strongest and most consistent commercial rental yields in Kolkata for over two decades. Unlike residential investment — which depends on resale timing and market cycles — Grade-A office ownership in an established IT corridor generates predictable rental income from creditworthy corporate tenants on multi-year leases. This is the model that family offices, HNIs and experienced real estate investors across India use to build long-term passive income.
New supply in a supply-constrained market. Sector V currently holds 14.6 million sq. ft. of Grade-A office space, with the bulk of it 15–25 years old. Very few new RERA-registered buildings are coming up in the core EP & GP block zone. Harbour One enters this market as genuinely new, purpose-built commercial space — which commands a meaningful premium over older stock in both leasing rate and capital value.

The campus format commands occupier loyalty. Large IT and corporate tenants don't just rent floors — they look for campuses. A development that offers office towers, a club facility and an on-site retail block is far more attractive to a quality anchor tenant than a standalone tower. Occupier loyalty translates directly into lease renewal, lower vacancy risk, and sustained rental income for investors.
Floor plate flexibility means a wider buyer pool. From a 1,650 sq. ft. unit (ideal for a small firm or a single-unit investor) to a 12,000 sq. ft. full floor (suited to a large corporate or a high-ticket HNI investor), Harbour One's configuration range means resale liquidity is not dependent on finding one specific type of buyer. This is a material advantage over niche commercial projects with a single floor-plate size.
RERA registration — a genuine differentiator in commercial. Most commercial projects in Sector V were built before RERA existed and operate without its protections. Harbour One's RERA registration (WBRERA/P/NOR/2026/004273) means construction timelines and specifications are legally committed, giving buyers the kind of transparency that reduces investment risk measurably.
A measured note. Commercial real estate returns depend on tenant demand, lease terms, market rental rates and overall economic conditions. Sidus Realty will walk you through current yield benchmarks in Sector V, comparable transaction data and available units before you commit to any decision.