Peter Staic has completed a year-long, €5m ($5.5m, £4.2m) renovation project at the family-run Hotel Arlberg alpine hotel and spa in Lech, Austria, with healthy paints, calming colours and natural materials. The hotel's newly extended spa now features glass courtyards, library and relaxation rooms, a stainless-steel heated outdoor pool with an integrated whirlpool and sauna and steam rooms. There are also Dornbracht hydrotherapy facilities for horizontal water massages, chromotherapy, aromatherapy

Aecom are creating a new waterfront public park in San Francisco that will incorporate elements of the site's former life as a port, including its cranes, the slipway and former cribbing and keel blocks. Crane Cove Park is part of the wider regeneration of the Pier 70 shipyard, which was San Francisco's largest shipbuilding facility before it closed down and was turned over to the Port of San Francisco in

Saniya Kantawala has designed Mannrangi, a 2,100sq ft (195sq m) restaurant in Mumbai, India, that was conceived to celebrate Indian cuisine and culture in a homely, communal setting. To foster the feeling of cosiness, a mixture of warm materials and earthy tones were used. Kantawala also used fabric as a key design element, with linen, jute, cotton and polyester providing contemporary, earthy decorative touches. Off-white plastered walls provide a basis

Mexican architecture practice Esrawe Studio have designed a minimalist warehouse and showroom for natural materials distributor Grupo Arca in Guadalajara, Mexico. Grupo Arca supplies architects, designers and construction companies with natural and raw materials from all over the world. The company has four collections of natural stone, tiles and other building materials – Mármoles Arca, Prato 33, The Woodshop and Brix – which are displayed at the new showroom. Called the

Global architects Perkins+Will have launched a list of the most “prolific and problematic” substances that people encounter every day in the built environment. Hosted on the firm’s ‘Material Transparency’ website, the compilation is described as “a user-friendly digital database that allows professionals to search for key substances and chemicals of concern using filters like project type, product type, and health and environmental impacts.” An earlier ‘Precaution List’ was developed by

Milanese studio CTRLZAK Art & Design have created a restaurant in the trees for a secluded Greek beach resort. The Treehouse, which can cater for ten diners per evening, was built using local materials sustainably sourced from Greece's Halkidiki beach region. The flooring has been rendered from pine wooden planks and naturally rusted iron was used for the railings and supporting structure. The restaurant is cocooned by a Inox fabric