Here are notable “green” or eco‑conscious luxury apartment options and green developments in Kolkata (with location, why they’re considered green, and sources):

1. The 42 — Chowringhee (Central Kolkata)

   • Ultra‑premium tower with documented green measures (energy‑efficient glazing, recycled/local materials, water recycling from STP) and LEED/IGBC‑level recognition cited in coverage. (Apsense.com)

2. Urbana (Anandapur / EM Bypass area)

   • Large luxury township emphasizing extensive landscaping, water bodies, open green areas and wellness amenities; marketed as “green living redefined.” RERA‑listed project with substantial green/open space. (newtowers.Urbana.co.in)

3. Trayam (New Town / Rajarhat) — Peerless project

   • New mixed‑use development by Peerless with IGBC Gold pre‑certification announced in 2025; includes solar, rainwater harvesting, EV charging and waste compaction. Good option if you want formal green certification in New Town. (timesofindia.indiatimes.com)

4. Ideal Exotica / other IGBC‑certified projects (various)

   • Several premium projects in Kolkata/New Town and New Alipore advertise IGBC or other green building certification or substantial green masterplanning (examples cited by local builders/agents). New Town has many IGBC‑registered projects. (psgroup.in)

5. Vyom (New Alipore) and Jiva (near Phoolbagan) — PS Group / developers

   • Marketed as luxury projects that prioritize large landscaped areas, ponds and wellness/outdoor amenities — suitable for buyers seeking green landscaping and open space within premium projects. (psgroup.in)

Other useful context

• New Town (Rajarhat) is the Kolkata area with the most concentrated “green” luxury developments and planned open space (Eco Park, incentives for green buildings), plus recent state/IGBC initiatives to promote certified green buildings. If green certification (IGBC/GRIHA/LEED) matters, New Town and the EM Bypass/Anandapur corridor are strong areas to search. (en.wikipedia.org)

Next practical steps

• If you want certified green construction, ask any developer for the project’s specific certification (IGBC/GRIHA/LEED) and the certificate/scorecard copy before booking. (Trayam is IGBC Gold pre‑certified per press.) (timesofindia.indiatimes.com)
• Request the developer’s sustainability spec sheet: solar capacity, rainwater harvesting capacity, STP/greywater reuse, EV charging provision, green cover % (tree count/landscaped area), energy‑efficient glazing/LEDs and materials sourcing.
• If you’d like, I can: (a) pull current listings/prices for any of the projects above, (b) check official IGBC/GRIHA databases for certification details, or (c) show nearby green‑neighborhood comparisons (New Town vs EM Bypass vs South Kolkata).

Which of the above would you like more detail or current listings for?