Karan Grover's CII-Sohrabji Godrej Green Business Centre in Hyderabad: the introverted court, wind towers, roof garden, materials, LEED Platinum and the energy figures as published.
The CII-Sohrabji Godrej Green Business Centre in Hyderabad is a demonstration building for the Confederation of Indian Industry, designed by Karan Grover of Karan Grover & Associates, Vadodara. It was rated LEED Platinum in November 2003, before it opened, and was inaugurated on 14 July 2004. Its rooms close around an inward-looking court on a rocky site, with wind towers that pre-cool fresh air, a roof shared between grass and solar panels, and water kept and treated on site. Below: the brief, site, plan, section, materials, climate strategy, the energy figures as published, and what designers can take from it.
CII-Sohrabji Godrej Green Business Centre: the facts
Architect: Karan Grover, Karan Grover & Associates, Vadodara. Team listed by Greenroofs.com: Arati Chari & Associates (landscape), Comten Engineers (structure), Tata Energy Research Institute (energy), Spectral Consultants (consultant), C. R. Narayanrao & Associates (commissioning), Consolidated Construction Consortium (civil works).
Client: the Confederation of Indian Industry (CII), with Godrej, the Andhra Pradesh government (land) and USAID (technical support) as partners.
Location: Survey No. 64, Kothaguda, near HITEC City, Hyderabad, Telangana (Andhra Pradesh when it was built).
Dates: proposed in 2000; construction from August 2002; LEED Platinum and completion in November 2003; inaugurated by President A P J Abdul Kalam on 14 July 2004.
Type: offices, seminar hall, technology centre and information centre. Area: sources differ: 17,000 sq ft (BuildingGreen, 2003), 19,906 sq ft (IGBC data, 2014), 20,000 sq ft (the architects and Business Today) and 2,000 sq m (SPAN, 2004). Site: about five acres, or two hectares.
Ratings: LEED version 2 Platinum, 56 of 69 points; BEE five-star label; IGBC Net Zero Energy Platinum, 85 points.
Status: in use as CII's Green Business Centre and home of the Indian Green Building Council. No photographs of the building on Wikimedia Commons met our bar, so this post uses MOA diagrams only.
The idea came from USAID. A. Venkata Narayana's report in SPAN (January/February 2004) says Srinivasan Padmanabhan, an energy adviser to USAID in New Delhi, proposed it in 2000, and that the centre was conceived around President Clinton's visit to India in March 2000. CII sent a group of Indian experts and an architect on a "design tour" of green buildings in the United States. Construction only began in August 2002, after delays in getting about two hectares of land from the Andhra Pradesh government.
The same report says Jamshyd N. Godrej, managing director of Godrej & Boyce, gave Rs 50 million towards a total construction cost of Rs 80 million, and that Karan Grover, "an internationally acclaimed and LEED-accredited architect", offered his services. Business Today (August 2004) gives the cost as about Rs 10 crore. Grover holds a B.Arch and an M.Arch from the Architectural Association, London, according to his firm's site.
The programme, as BuildingGreen listed it in December 2003:
The building itself was the exhibit. Business Today called it a "demonstration building", and the target was the top LEED level. SPAN quotes project coordinator Air Commodore (Retd) S. C. Kumar: the long-term aim was a self-sustaining unit, so the team built in "many features" to earn LEED points.
The site lies in Kothaguda, near HITEC City. The architects' project page says the rocks already on the site decided how the spaces were arranged, and the contours set the position and level of each plinth. Rediff (July 2004) reported that the site was not disturbed during construction, as LEED required.
CSE's 2014 analysis places the building in the composite climate zone, the band BEE uses for its benchmark. The design answers heat with shade, evaporative cooling and a court. For what this ground and heat mean for ordinary houses, see our guide to building materials in Hyderabad.
The architects describe the centre as an "introverted court" that serves interaction and exhibitions, while keeping physical and visual links to the landscape beyond. Three older devices recur in every account:
None of these is decoration added to a sealed box. Each does a job that a fan or chiller would otherwise do.
We have not found a published, dimensioned plan we could check, so the diagram below shows the zoning principle only, from the descriptions. The rooms of the brief sit around the court. Two wind towers appear in most accounts; Grover's own account mentions four. Rocks stay where they were, and the plinths step with the ground. Water from the roofs and the building runs to planted treatment beds and ponds.
Two points matter for a student drawing the plan:
For the real drawings and photographs, see the architects' project page and the centre's own website. Our case study field checklist covers what to measure on a visit.
The sources describe the section through its services more than its structure. The listed structural engineers are Comten Engineers, but none of the sources we read describes the frame or the roof slab, so we do not label them.
The wind towers are the key part of the section. Rediff reported that water sprayed inside two "air-conditioning towers" cools the incoming air by about 7 to 8 degrees, and that this pre-cooled air goes to the air-conditioning system. Grover told The Tribune the air dropped from about 40 degrees to 27 to 29 degrees before it reached the air-handling units. Business Today put the saving at 7 to 10 per cent of the air-conditioning load. SPAN says the conditioned rooms are held at 26 degrees C through the year.
This is not a passive building. It is an air-conditioned building whose fresh air is cooled cheaply first. Students sometimes describe the wind towers as replacing air conditioning; none of the sources says that.
Accounts of the materials agree on recycled content and fly ash, but they disagree on the details:
For how fly ash and AAC compare in ordinary walls, see our red brick, AAC and fly ash comparison.
The roof does two jobs. The Greenroofs.com project listing describes about 1,022 sq m of roof, with 55 to 60 per cent covered by grass sod on about 2 inches of sandy soil over three waterproofing layers, at a 6 per cent slope, and solar panels on the rest. Rediff gave 60 per cent garden. In 2004 the panels were 24 kW, making 100 to 120 units a day and meeting about 20 per cent of the building's energy cost (Rediff). CII's page on the net zero rating now gives 130 kWp of solar. Our roofing by climate guide covers green roofs on ordinary houses.
Greenroofs.com describes the water cycle: all wastewater and runoff passes through root-zone treatment, a planted filter bed, and is held in one of three ponds for reuse. The aim is zero discharge. Municipal drinking water use is 35 per cent lower, partly through low-flush toilets and waterless urinals. Business Today reported a rainwater pond of 8 lakh litres. In SPAN, Kumar says municipal water would be used only for drinking, a few kilolitres at a time.
Many figures for this building are design claims. Rediff reported 55 per cent less energy than a conventional building. Business Today gave an 88 per cent lighting saving. Grover told The Tribune the building "could save 62 per cent energy". None says what baseline was used or when it was measured.
The reported operating figures are more useful:
Use has grown from 160 MWh to about 200 MWh a year. Bizz Buzz reported in 2023 that the centre began with 17 to 20 people and now has about 100; the original brief was for 29. We did not find a source that links the two figures.
The reception in 2003 and 2004 was about the rating. SPAN reported that it was the only building outside the United States, and the third in the world, to reach LEED Platinum. BuildingGreen called it the first project rated Platinum under LEED version 2. Business Today and Greenroofs.com give 56 of 69 points. At the opening, Jamshyd Godrej called it "the greenest building in the world" (Rediff), a claim based on the LEED score, not on measured use.
The wider critique came later. In "Certified, not certain" (Down To Earth, 15 October 2014), Avikal Somvanshi reported CSE's finding that 47 per cent of the LEED-India office and IT buildings it assessed failed BEE's star benchmark. The article does not name this building, and CSE's own table shows the centre well inside the cut-off. The point stands for students: a rating awarded at design stage is not a performance result.
Two later events extended the record. CII's page announces the IGBC Net Zero Energy Platinum rating with 85 points; The Machine Maker (September 2026) dates it to 2019. Bizz Buzz quotes M Anand of IGBC calling it "the first building built on energy modeling principles". We found no published account of leaks, defects or alterations to the building.
Our reading, not the architects' claims:
The building is CII's working office, not a museum. The centre's official website links a green building tour from its home page and lists contact details at Survey No. 64, Kothaguda Post, Hyderabad 500084. It publishes no visiting hours or fees that we could find, so write to the centre through the site before you go.
Karan Grover of Karan Grover & Associates, Vadodara. Arati Chari & Associates were the landscape architects, Comten Engineers the structural engineers and the Tata Energy Research Institute the energy consultants, according to Greenroofs.com.
At Survey No. 64, Kothaguda Post, near HITEC City in Hyderabad, Telangana, PIN 500084.
Construction began in August 2002 and finished in November 2003, the same month the LEED Platinum rating came through. President A P J Abdul Kalam inaugurated it on 14 July 2004. A 2023 Bizz Buzz report gives 14 June 2004; CII's own site says 14 July.
It keeps its site's rocks, pre-cools fresh air in wind towers, covers more than half its roof in grass and the rest in solar panels, treats and reuses its water, and uses fly ash and recycled materials. Its reported energy index of 84 to 87 kWh per sq m per year earned a BEE five-star label.
India Environment Portal lists a 2012 CII architectural case study, but we could not find a downloadable copy. The architects' project page and CII's site are the official references; our diagrams above show the zoning and section principles, not the measured plan.
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