Historically, architecture and the built environment have insisted on creating flat, hard surfaces. In earlier eras, walking without paved ground meant mud-caked shoes, uneven footing, tripping hazards, standing water after rain, and high maintenance. Hence, as we shaped cities, we prioritized a smooth, continuous, solid horizontal datum. The benefits are real: easier walking, simpler cleaning, and straightforward programming—furniture, equipment, and partitions all prefer a level base. This universal preference for building on flat ground remains the norm and, for many practical reasons, will likely continue to be.

What's less recognized is that making a truly flat surface is surprisingly difficult—and many well-executed "flat" floors aren't perfectly flat at all. They are often gently sloped, calibrated to precise gradients for drainage. While interior spaces do not always require this, many ground floors and wet areas do incorporate subtle inclines as a safeguard—whether for minor flooding or to manage water that overflows from the street or plumbing when one of the discharge systems is malfunctioning.

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This article was originally published on Common Edge.

Exploring the question of slavery in Architecture, the building materials and the construction industry, Michael J. Crosbie interviews Sharon Prince, the women behind Design for Freedom, discussing the initiative's report "on the pervasive use of slavery in the design and construction industry, and how design professionals can respond".

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One of the most important cities in the world –and the most populated in the United States of America–, New York is home to a great mix of cultures and history that has been shaped over the years, while art and architecture play a fundamental role in this development.

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Founded in 1995 by architects Kazuyo Sejima (born 29 October 1956) and Ryue Nishizawa (born 7 February 1966), SANAA is world-renowned for its white, light buildings grounded in the architects’ Japanese cultural origins. Despite the white exteriors, their architecture is far from modernist; the constant incorporation of ambiguity and doubt in SANAA’s buildings is refreshing and playful, taking the reflective properties of glass and brightness of white to a new level.

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Japanese architect Kazuyo Sejima, co-founder of Tokyo-based SANAA, has been appointed as the newest member of the Pritzker Prize Jury.

Sejima, the 2010 Pritzker Prize co-laureate, will help to decide the recipient of the 2018 Prize, the 40th edition of what has become known as the architecture world’s most prestigious honor.

At ArchDaily, we're lucky enough to know a fantastic network of architecture professionals, allowing us to share the world's best architecture with our audience. But our articles wouldn't be the same without the many photographers who dedicate themselves to making incredible, inspiring images. For that reason, here we present the 50 most popular architecture images of 2017.

This August 19th is World Photo Day, which celebrates photography on the anniversary of the day on which France bought the patent for the daguerreotype, one of the earliest photographic processes, and released it to the world for free in 1839. At ArchDaily, we understand the importance of photography in architecture—not only as a tool for recording designs, but also as a discipline that many of us enjoy. To celebrate the occasion, we decided to reveal the most popular images ever published on ArchDaily, as selected by you, our readers. Using data gathered from My ArchDaily, we have ranked the 100 most-saved images from our database; read on to see them.

The Curry Stone Design Prize has selected 11 honorees as part of June’s Social Design Circle, whose work responds to the question: Can Design Reclaim Public Space? From NGOs to design collectives across the globe, each winner addresses notions of usage, organization, and amenities within the realm of public space, and is featured on the prize’s website. In addition to a new circle of monthly winners, the prize hosts a weekly podcast, Social Design Insights, complimenting the featured work and expanding on the monthly themes with leading practitioners in social design.

Here are the 11 members of June’s Social Design Circle:

SANAA’s Grace Farms has been announced as the winner of the 2014/2015 Mies Crown Hall Americas Prize (MCHAP), recognizing the most distinguished architectural works built on the North and South American continents.

The project was selected from a shortlist of seven finalists, joining Alvaro Siza’s Iberê Camargo Foundation and Herzog & de Meuron’s 1111 Lincoln Road as winners of the highly-regarded prize.

“Among a strong group of projects Grace Farms emerged as a clear winner for the clarity and consistency of its architectural solution,” said Stan Allen, MCHAP Jury President.

“The jury was struck by the radical way in which the line between architecture and landscape is blurred by the ‘River’ building. The firsthand experience of the building reveals a confident realization and the immediacy of its detailing. Finally, the Grace Farms project uniquely demonstrates architecture’s capacity to make a place for an innovative new institution.”

 Learn more about the project after the break.

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The Architectural Review (AR) has unveiled the candidates for its 2016 Woman Architect of the Year and the Moira Gemmill Prize for Emerging Architecture awards. Tatiana Bilbao, Jeanne Gang, Kazuyo Sejima and Charlotte Skene Catling are all being considered as the woman of the year for their impact and ability to inspire change within the profession.

Eleven women are being considered for the Moira Gemmill Prize for Emerging Architecture prize for their "use of innovative architecture to effect positive social change." Read on to see them all.