Vvip circuit house

one of the green building in pune

1. VVIP CIRCUIT HOUSE

2. INTRODUCTION: Architect: SUNIL PATIL AND ASSOCIATES AREA: 10540 M² Year: 2014 Rated by: GRIHA 5 STAR Green building consultants: ENVIRONMENTAL DESIGN SOLUTIONS Location: PUNE,MAHARASTRA Climate: WARM AND HUMID VVIP Circuit house is government guest house which accommodates VIP, VVIP officials, ministers and a large number of visitors. Circuit houses mainly function as official destinations to carry out various official government activities and hence it automatically reduces the scope for leisure activities in this building.

3. SITE, CONTEXT AND CLIMATE: The site has existing buildings – VIP Rest-house built in post modernist style. east side -golf course. Being in cantonment area, the project has restriction of ground +2 floor building. It forms a part of the tropical monsoon land, and therefore shows a significant seasonal variation in temperature as well as rainfall conditions. Climatically, the western region of Pune is cool whereas the eastern part is hot & dry. Pune city falls in between the zone of hot & dry & wet-humid region. Temperature: 12°C to 37°C. Rainfall: 600 to 700 mm, Maximum rainfall: from June to September every year.

4. DESIGN CONCEPT:   attempt to calibrate the architectural style of government building with the time – Contemporary vernacular architecture. The planning is derived from vernacular architecture The shaded courtyard, transition spaces like passages and terraces, jalis in form of louvers carry vernacular ethos in highly contemporary architectural style the climate, the site and time are basic parameters of design for this project leading to the contemporary vernacular architectural style. Transition spaces Shaded courtyard

5. EVOLUTION OF FORM:

6. GREEN FEATURES: Orientation and planning Shaded courtyard Passive cooling strategy Climate responsive building envelope Transition spaces Water management Eco-friendly materials Helipad Artwork Energy efficiency

7. 1) ORIENTATION & PLANNING: Orientation: East-West. Residential zone: north and south solar radiations can be cut with the help of shading devices yet allowing good ventilation. West side: intermittent spaces. short time span: the harsh western sun does not affect the occupants directly. east side: dining area, morning sun is taken care of by the overhangs.

8. 2) SHADED COURTYARD: traditional & effective configuration, large diurnal temperature swing. It forms the focal point in the entire building, acts as a waiting lobby for the outsiders the water body with a shaded courtyard & the diffused daylight, having a pleasant feeling of being in context with nature. 3) PASSIVE COOLING STRATEGY: All the common areas of the building, are naturally ventilated. dining area: fresh air is supply though evaporative cooling unit. suites and conference room: VRV air-conditioning ,designed considering 50% occupancy.

9. 4) CLIMATE RESPONSIVE BUILDING ENVELOPE: East façade: critical for morning hours Sun shading devices are designed South façade: Exposed to the harsh winter sun, resulting in heat gain and glare. Terraces are designed as a buffer between inner and outer skin. Louvers are used to allow light and achieve thermal environmental comfort North façade: Least direct solar radiation and direct sunlight -hence preferred for suites. Overhangs cater to summer sun West façade: critical as receives maximum solar radiation Most façade is dead and ancillary spaces planned Conference on this side use for shorter time with vertical louver

10. 6) WATER MANAGEMENT: Reduction in irrigation water demand by 48% Sewage treatment plant, treated water is used for irrigation Use of efficient water fixtures 50% saving in water Waste water has been utilized for landscape irrigation Water body is designed as part of the courtyard and placed in between reception and dinging area. It is a continuation of water body in the exterior landscape and adds to the ambiance both visually and physiologically. Waiting area created on various levels for visitors and other conference room is planned on the second floor 5) TRANSITION SPACES: Act as a buffers between outside & inside Play an important role in harsh climates Different forms: courtyard, verandas, loggia, balconies, corridors Very close to the outside environment but are protected from sun % rain. Suites on south side have terrace on exterior façade then passage and courtyard

11. 7) ECO-FRIENDLY MATERIALS: AAC blocks – wall, reduction in non-structural weight of building, Fixed with adhesive, no curing Recycled ceramic tiles-flooring in suites Granite – public areas Efficient glass-minimized solar heat gain & maximized daylight area Effective roof insulation- heat gain reduced Utilization of fly ash in reinforced concrete and masonry mortar is up to 35% Exposed concerete-permenant finish, avoid repeated maintenance requirement 8) HELIPAD: 24m dia helipad Lessen the security expenses as well as traffic congestion caused during the arrivals of VIPs 9) ARTWORK: 225 pieces of art which include paintings, sculptures, mural, wall arts Based on theme: care for earth and nature Message is passed through the art by 30 local artists. 1 3 4 5 6 1 7 2

12. 7) Energy efficiency: 52.81% reduction in building energy performance index 22 kw solar photovoltaic renewable energy plant is designed to care more than 30% of artificial lighting. Heat pump based hot water system for 90% of hot water demand is installed Air conditioning is design with VRV( variable refrigerate volume) system. 2 3 4

13. LANDSCAPE AND ECOLOGY: Seamlessly merges with spaces Front landscape connect with golf course Continuity maintained through bamboo plantation in the court Seating: pebbles courts Water body: add ambience both mentally and physically Harmony wit existing trees and new trees help in maintain ecology Hard paving: reduced by 58.6% by introducing grass pavers which heals in minimalizing heat island effect 100% outdoor lighting is created by rev=enable energy system.

14. Bibliography: www.e-architect.co.uk www.archdaily.com Worldarchitect www10.aeccafe.com