Atrium Ljungberg - Large-Scale Mixed-Use Climate-Positive Urban District Development

Stockholm · Sickla · Slakthusområdet (Sweden) · 2024 · Atrium Ljungberg — Swedish urban development and real-estate company (Stockholm).

Atrium Ljungberg has reshaped how Swedish cities approach large-scale development. Their districts demonstrate that climate-positive construction can coexist with economic growth and cultural vibrancy. Timber-based projects significantly reduce embodied emissions, while mixed-use planning lowers transport emissions and strengthens local communities. Public spaces and cultural venues activate districts beyond office hours, creating inclusive urban life. Their work influences national debates on sustainable construction and positions Sweden as a global reference for climate-adaptive urbanism.

Highlight

A leading Scandinavian model for circular, low-carbon, mixed-use districts that integrate work, housing, culture and mobility.

Extended description

• Sweden's cities are expanding rapidly, with strong demand for housing, workplaces and cultural infrastructure. At the same time, national climate goals require deep reductions in construction-related emissions and a shift toward circular, low-carbon urban development. Atrium Ljungberg addresses this challenge by designing and operating mixed-use districts that integrate sustainability, social life and economic activity.

• The company's approach is based on long-term ownership, allowing it to invest in durable materials, circular systems and high-quality public spaces. Their districts combine residential buildings, offices, retail, cultural venues, schools and mobility hubs within walkable, transit-connected areas. This reduces car dependency and supports vibrant local economies.

• Technically, Atrium Ljungberg is a pioneer in large-scale timber construction, using mass timber (cross-laminated timber) to reduce embodied carbon and accelerate construction timelines. Projects incorporate renewable energy systems, district heating, green roofs, stormwater management and biodiversity-enhancing landscapes. Circularity is embedded through material reuse, adaptable building typologies and long-life design principles.

• One of their flagship projects is Stockholm Wood City, in Sickla — the world's largest known timber-built urban district (25 blocks, ~250,000 m², ~7,000 office workspaces and ~2,000 homes). The development focuses on climate-positive construction, energy efficiency (self-produced, stored and shared energy) and nature-based design. Other districts — such as Slakthusområdet and Hagastaden — show how mixed-use planning can create lively, inclusive and sustainable urban environments.

• Operationally, Atrium Ljungberg collaborates with municipalities, transit authorities, cultural institutions and private tenants to ensure that districts evolve as complete ecosystems. Public spaces, cultural programming and ground-floor activation are central to their model, fostering community life and social cohesion.

• Systemically, the company shows how real-estate developers can drive the climate transition by integrating low-carbon materials, renewable energy and circular design at district scale. Their projects influence Swedish planning policy and set benchmarks for sustainable urban development across the Nordic region.

Demonstrated metrics

• World's largest known timber-built urban district — Stockholm Wood City (25 blocks, ~250,000 m²).

• ~7,000 office workspaces + ~2,000 homes in Stockholm Wood City.

• Up to 40–50% reduction in embodied carbon through mass-timber construction.

• Significant operational energy savings via renewable systems and efficient design.

• High public-space usage due to cultural programming and walkability.

• Circular material strategies implemented across major developments.

Real impact

Atrium Ljungberg has reshaped how Swedish cities approach large-scale development. Their districts demonstrate that climate-positive construction can coexist with economic growth and cultural vibrancy. Timber-based projects significantly reduce embodied emissions, while mixed-use planning lowers transport emissions and strengthens local communities. Public spaces and cultural venues activate districts beyond office hours, creating inclusive urban life. Their work influences national debates on sustainable construction and positions Sweden as a global reference for climate-adaptive urbanism.

Implementation location & date

Based in Stockholm, Sweden, with major district developments in Sickla, Slakthusområdet and Hagastaden, and the flagship Stockholm Wood City (construction started 2024; first buildings from 2025; full completion ~2027). A long-term ownership model ensures continuous development and adaptation.

Sources

• Atrium Ljungberg — Stockholm Wood City / Sickla: https://www.al.se/en/sickla

• Stockholm Wood City announcement (Atrium Ljungberg press release): https://www.al.se/en/recent/pressreleases/2023/the-worlds-largest-wooden-city-announced-in-stockholm-with-construction-start-in-2025/

• Stockholm Wood City — Wikipedia: https://en.wikipedia.org/wiki/Stockholm_Wood_City

• CNBC — Europe's wood city, Sickla (2025): https://www.cnbc.com/2025/07/15/europes-wood-city-sickla-in-stockholm-will-be-made-almost-entirely-of-timber.html