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A sculpted concrete stair curving up through a top-lit hall

Cultural · Aarhus, Denmark · 2022

Saltwater Library

A public room on the harbour, lit by the sea.

Overview

Aarhus asked for a library that would feel like the harbour’s living room. We gave it one great space: a top-lit reading hall where a concrete stair climbs through four levels of books.

The concrete is cast in place and left bare, softened by oak floors, wool acoustic panels and the constant reflected light of the water.

On winter afternoons, when the light goes early, the hall glows across the harbour like a lamp left on for the city.

Location
Aarhus, Denmark
Year
2022
Status
Completed
Typology
Cultural
Coordinates
56.1629° N, 10.2039° E

Drawings

Drawn to be built.

Plan, section and elevation, from the foyer to the café, each drawn to scale on the structural grid.

Plan, level 00 — Saltwater LibraryGround-floor plan, 36 by 20 metres on a 6 by 5 metre structural grid. Rooms from west to east: Foyer (111 m²), Children (113 m²), Reading hall (231 m²), Stair (113 m²), Café (111 m²). The stair rises from the stair.UPFOYER111 m²CHILDREN113 m²READING HALL231 m²STAIR113 m²CAFÉ111 m²ENTRYABCDEFG12345AA60006000600060006000600036000500050005000500020000SALTWATER LIBRARYAARHUS · 56.1629° N, 10.2039° EPLAN — LEVEL 00 · 1:100A2 LANDSCAPE · AS BUILT02.55 mNHALDEN & VOSS · 2022A-101
The ground floor, set out on a 6 × 5 m structural grid.36 × 20 m · 5 rooms · 720 m² ground floor

Materials

Made of few things.

Three materials, chosen at the source and left to age. Nothing is painted to look like something else.

  • Fair-faced concrete with tie holes and formwork joints

    Fair-faced Concrete

    Cast once, in timber formwork we draw ourselves. The tie holes stay: they are how you read the pour.

  • Low-iron glass reflecting trees and warm interior light

    Low-iron Glass

    Without the green cast of ordinary glass, so the landscape reads true from edge to edge.

  • Charred timber boards with a deep black grain

    Charred Oak

    Scorched the old Japanese way, oiled, then left alone. The char is the weatherproofing, and it deepens with every winter.

Details

Specifications.

Location
Aarhus, Denmark
Site area
6,800 m²
Gross floor area
11,400 m²
Levels
4
Structure
In-situ concrete, glulam roof beams
Facade
Fair-faced concrete, low-iron glass
Certification
DGNB Gold
Completion
September 2022
Team
22 architects

Credits

Architecture and landscape
Halden & Voss Architects
Structural engineering
Brandt Ingeniører
Acoustics
Sonority Consult
Lighting
Studio Solstice
Client
Aarhus Municipality
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