haagse veste, the hague

A government office reimagined as a living landscape, Haagse Veste IV transforms everyday work into a journey through nature.

Client: Rijksvastgoedbedrijf (RVB)

Architect: Sweco Architects, Rudy Uytenhaak and Partners Architecten (RU+PA)

Green Architect: MOSS

Location: The Hague

Design Year: 2025/2026

Renders by: NanoPixel

Parties: Advies Bureau, IMD Raadgevende Ingenieurs, Repurpose, Hegeman Bouw & Infrastructure, De Groot Installatie Groep

Revitalizing an Office with Green

In The Hague, the Central Government Real Estate Agency (RVB) is redeveloping Rijkskantoor Haagse Veste IV together with an integrated consortium led by Hegeman Bouw & Infra. RU+PA and Sweco are the architects, while De Groot Installaties and DWA develop the energy and installation concepts, and IMD and Repurpose focus on structural engineering and circular material strategies. MOSS was asked to design the green concept for the interior and rooftop levels, supporting the project’s sustainability and user-experience goals. 

rooted in natures flow

The green design of Haagse Veste is centered around elements people experience in nature, with design themes like fluidity, shelter, filtered light, and a sense of groundedness. Planters and paths mimic the flow and fluidity of nature, helping to guide users through a bustling building. The green design is inspired by the safe, secluded feeling that valleys and mountains provide us in nature, and tall trees are included to promote groundedness and remind us that we are rooted in nature. 

the valley

Located at the heart of the ground-floor atrium is a lush, grounded, and immersive garden that welcomes all visitors to the base of the building.

the hike

A walk to the summit leads to a series of stairs that lead visitors to the roof garden (the mountain). Along the walk, small green spaces with hanging green provide respite from the journey.

the canyon

The Canyon is a sheltered atrium composed of rocky, earthy materials and mediterranean planting scheme, complimented with filtered natural light, to create a space for grounding.

the mountain

Located on the roof, a landscaped garden is designed as an elevated summit. With tiered plantings and open views, it replicates the experience of standing in a vast valley.

four intentional elements

For Haagse Veste, MOSS and the rest of the design team developed a green design concept that drew on inspiration from natural topography to create a spatial journey through four main elements: The Valley, the Canyon, the Hike, and The Mountain. The intention was to create a narrative landscape, inviting users to connect with nature throughout the building.

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