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Vertical Gardens and Sustainable Timber Rise in Affordable Urban Living

Authors:
Vanessa Randolph, Akhira Ismail
Vertical Gardens and Sustainable Timber Rise in Affordable Urban Living

Project in-detail

With vertical gardens integrated into its facade and a heavy timber structure designed for energy efficiency, the building redefines urban living by providing affordable housing and commercial spaces in downtown Sacramento.
5 key facts about this project
01
Integrates transparent solar cells into south and east-facing windows for energy efficiency.
02
Features an internal green promenade that encourages community interaction among residents.
03
Utilizes a heavy timber moment frame system to enhance structural integrity and sustainability.
04
Adorns the building with deciduous vines for natural shading and aesthetic appeal.
05
Includes commercial storefronts like a clinic and supermarket to serve the community.

Sacramento Timber Tower is a notable building located in downtown Sacramento, designed to enhance the city’s skyline while addressing the need for affordable housing. Standing 28 floors high, this prefabricated sustainable heavy timber structure includes 250 residential units and 15 storefronts, featuring necessary services such as a clinic and supermarket. The design reflects a commitment to integrating residential, commercial, and community spaces, creating an adaptive response to urban living.

Structural System

The building's structural system consists of a heavy timber moment frame. It features two staggered wings oriented to the east and west, connected by a central core and an internal atrium. This layout encourages smooth circulation and connectivity, allowing residents to access common areas easily and promoting community interaction.

Lighting and Sustainability

Natural light is an important aspect of the design. Each southern-facing residential unit is equipped with transparent solar cells integrated into the south and east-facing windows. These solar cells harness sunlight, generating electricity for the building's mechanical systems while also providing a portion of electricity for the units. This integration supports sustainability and contributes to the overall energy efficiency of the building.

Landscaping and Community Space

The timber frame is complemented by deciduous vines that provide solar shading and help control heat gain. Additionally, green plants are carefully placed to absorb solar rays, reinforcing the building’s commitment to ecological sustainability. Vertical gardens along the building create a visual link to the Sacramento State Capitol Park, enhancing the connection between urban living and green spaces.

Internal Promenade

A significant feature of the building is the internal green promenade, designed to offer residents a comfortable and secure area for moving within the space. This path promotes leisurely walks and encourages interactions among residents. Shared spaces throughout the building further support social connections, making Sacramento Timber Tower a community hub.

The design incorporates sculpted green walls that rise up from the structure, bringing elements of nature into the atmosphere. This approach integrates landscaping with architecture, enriching the living environment and strengthening the connection to the surrounding area.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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