The Library of Birmingham is a transparent glass building. Its delicate filigree skin is inspired by the artisan tradition of this once industrial city. Elevators and escalators dynamically placed in the heart of the library forms connections between the eight circular spaces within the building. These rotundas play an important role not only in the routing through the library but also provide natural light and ventilation. The rooftop rotunda houses the Shakespeare Memorial Room, designed in 1882. This Victorian reading room is lined with wood from the first Birmingham Central Library. Its prominent position as a rooftop aerie makes this delicate room visible from the square. The REP with its unique and beautiful auditorium will be renovated. New workshops, staff accommodations and a shared theatre and foyer space will be created for both the REP and the library.The Library of Birmingham is a BREEAM excellent rated building and incorporates grey water systems and ground source heat pumps. Although the Library is a transparent building, it maintains energy efficiency through the buffering capacity of the building mass and the atria. Sun shading and reflective materials within the facades block the harsh rays of the sun during the height of afternoon while allowing natural daylight into the interiors. The ground floor benefits from the mass of the soil which provides buffering and insulation. The circular patio cut out of the square creates a protected outdoor space and invites daylight deep into the building. The building will incorporate a mixed mode and natural ventilation strategy. The façade will respond to external conditions and openings will allow fresh air intake and outflow. The addition of soft landscaped roof spaces will further enhance the immediate surrounding conditions.