Ashok B Lall Architects and Development Alternatives Group

Architecture by: Ashok B Lall Architects and Development Alternatives Group
Type of building use: Office, Resource Centres and Conference Facilities
Built-up area: 3096 sqm superstructure 1526 sqm basement
Plot size: 3116 sqm
Location: New Delhi
Climatic Zone: Tropical, Composite
Actual Occupancy: 250
a) 30 per cent less embodied energy
(Lifecycle “cradle to grave” approach to assess energy content of materials)
Low energy natural materials used for building elements
  • mud and fly ash blocks instead of burnt brick or concrete
  • timber for doors and windows
  • 25 per cent of external wall area glazed
  • noaluminium or PVC used
90 per cent materials sourced from around Delhi; thus involving minimum transportation Highly efficient use of materials
  • thinferro-cement channels with stone slabs instead of heavy concrete slabs
  • stone flooring pattern designed to reduce waste to less than 5%
Exposed brick work without paints
b) 40 per cent less operational energy
  • User acceptance of indoor temperature range from 180 to 280 Celsius
  • Optimised orientation to
    • maximise natural lighting and ventilation
    • minimise heat gain
  • “Green clothing” (planting on building façade), cavity walling and built-in shading devices to minimise heat gain
  • Innovative “Hybrid” air conditioning system minimising use of energy and water
    • prioritising evaporative cooling for hot and dry months
    • supplemented by refrigerant cooling for hot and humid months
c) 100 per cent waste water recycled
  • Rainwater harvested for use or ground water recharge
  • Waste water recycled for use in toilets and gardens
  • Surplus waste water treated before recharging ground water
d) 15 per cent recycled materials
  • Mud from old building salvaged to make new compressed earth blocks
  • Stones used for masonry
  • Industrial wastes, such as fly ash and stone dust used in construction
e) 30 per cent less steel
  • Ferro-cement channels with minimal steel bars and chicken-wire mesh
  • Shallow domes with Fly Ash blocks requiring no steel reinforcement
  • Short-span reinforced cement concrete frame for basic structure
f) CFC free building
  • Committed to protecting the Ozone Layer
  • Permissible refrigerant used; can be upgraded as better refrigerants are made available
g) 30 per cent less cement
  • 25mm thick ferro-cement channels, instead of 150mm thick slabs
  • Minimal cement plastering – celebration of exposed natural materials
  • Filler slabs using local artisan (pottery) skills
h) People Driven Design
  • Interactive process between the DA staff and the architects; design evolved over a series of workshops
  • Sensitive to requirement of universal access
  • enabling persons with disabilities to reach all points with ease
  • enabling persons from all strata of society to feel welcome
  • Child-care and recreational facilities
i) Commitment to People and Nature
  • Promotion of skill-based techniques and artisan products
  • terracotta fenestration
  • materials produced from micro-enterprises
  • All wood from managed plantations
  • Promotion of sustainable livelihoods and local rural and peri-urban economies
In India as in many developing countries one quarter of the energy goes into buildings to make buildings and to operate it. Almost a half or our materials that we dig out of the ground goes into the construction of building, roads and other construction or projects. So it is a very large part of the cause of our environmental problems. So from that point of view it is extremely important that we demonstrate that good buildings, comfortable buildings and productive buildings can be made using much lower cost and much lower energy, material and techniques. The future of the construction in India has to be towards lower environmental impact approaches.

The original dream the vision that we had (for this building) was to create a workplace where young people could give their best. Their total creativity to nation building.
Actual Energy Performance Index in kWhr/sq.m./year :
Percentage of A/C and non A/C regularly occupied spaces: 90% A/C and 10% Non-A/C
Owner / User Testimony: Society for Development Alternatives
Awards / Green Rating / Energy: DTV-Toyota Green Award 2010 - Green Design category
Architecture by: Ashok B Lall Architects and Development Alternatives Group
Structural Design by: Mr. Subir Roy Choudhary
Services Design by:
Electrical: M/s KanwarKrishn Associates Pvt. Ltd.
Plumbing: M/s KrimEngg. Services Pvt. Ltd.
HVAC: M/s AbidHussain Consultants
Project management: In-house
  • Civil Engineering Contractor-Gurbaksh Singh B.A. Builders Pvt. Ltd, New Delhi
  • Electrical Contractor-Shivam Engineers, New Delhi
  • Plumbing Contractor-Yash Plumbing Engineers, New Delhi
  • Hybrid units and control: VikramHitechPvt Ltd, New Delhi
  • Ductwork and VRF units: Adhunik vatanukool Pvt Lts, New delhi
Name of the Architectural Practice: Ashok B Lall Architects and Development Alternatives Family
Photo of the Architect/Partners
Address: Address: B-32, TARA Crescent, Qutub Institutional Area, New Delhi-110016 and
2-B, Ramkishore Road, Civil Lines,
New Delhi - 110 054. India
Tel: 91 (11) 2696-1497
Fax: 91 (11) 2613-0817

External Links

Greenest Building in Delhi

Part 1
Part 2
Part 3

Types of services offered.
(Architecture, Structural, Services, Project Management, Contracting, Green Rating Facilitation, Energy Performance Simulation, Energy Audit…): Green Building Consulting, Low Carbon Construction Training and Capacity Building and Project Management