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Sasso

Concrete house opening onto a forest slope

[ Studio ]

Architecture & Interiors — Zürich

[ Monograph 01 ]

Forest House, Ticino — 2025

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46° 11’ 32” N • 8° 58’ 14” E • Elev. 612 m

Permanent structural exhibition

Sasso

[ 03 — Manifesto & Ground ]

ETH SIA / BSA registered

We design houses and interiors Forest House concrete envelope that grow from their site, Hand sketches on a desk their light Sunlight and shadow on a plaster wall and the way people live.

Methodology / 01 — Observational grounding

Every project starts with time on site. We study the ground, the light and what is worth keeping — then build only what is needed. Architecture is not an addition to landscape; it is landscape clarified.

About the studio →

[ Selected monograph 01 // 04 ]Permanent archive

01 / 04 — Featured project

Forest House

Ticino • New house • 2025

New house — architecture and interiors carved directly into a granitic slope.

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Next plate [02]

Garden House

Basel • New house • 2024 ↓

All projects

[08]

All

Houses

Interiors

Renovation

Cultural

List

Grid

No.

Project name

Location

Typology

Year

Index

Forest House

Ticino, CH

New house

2025

→

Garden House

Basel, CH

New house

2024

→

Coast House

Brittany, FR

Holiday house

2024

→

Mill Conversion

Winterthur, CH

Adaptive reuse

2025

→

White Courtyard House

Graubünden, CH

Private residence

2023

→

Vineyard Pavilion

Lavaux, CH

Cultural & wine cellar

2023

→

Library Extension

St. Gallen, CH

Public competition

2022

→

Apartment Kreis 4

Zurich, CH

Interior renovation

2022

→

[ Case study • Technical journey ]

Forest House — from site to built

How a sloping forest plot became a house of concrete and light.

Phase 01

01 — Site

Empty 38-degree forest slope with mature chestnut and granite outcrops.

Phase 02

02 — Sketch

Section study exploring subterranean thermal massing and roof aperture.

Phase 03

03 — Model

1:50 basswood topographical model analysing morning light.

DWG // 04-A

04 — Drawing

Approved permit submission and engineered retention wall detailing.

Phase 05

05 — Construction

Local larch formwork poured with low-clinker Swiss cement.

Phase 06 • Handover

06 — Built

The completed house nestled into the bamboo canopy, occupied autumn 2025.

Scroll to move through the milestones

01 — Site02 — Sketch03 — Model04 — Drawing05 — Construction06 — Built

Expertise

[ Five disciplines ]

Architecture

New houses and small buildings, from initial feasibility studies through construction and final completion.

Detail A / Stone & concrete facade

Detail B / Bamboo side wall

Detail C / Planted corner

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Architecture

New houses and small buildings, from initial feasibility studies through construction and final completion.

Detail A / Stone & concrete facade

Detail B / Bamboo side wall

Detail C / Planted corner

Explore discipline →

Interiors

Joinery, materials, lighting and custom furniture, conceived as a singular whole with the building envelope.

Detail A / Pure mineral render

Detail B / Oak & bronze fittings

Detail C / Deep window reveal

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Interiors

Joinery, materials, lighting and custom furniture, conceived as a singular whole with the building envelope.

Detail A / Pure mineral render

Detail B / Oak & bronze fittings

Detail C / Deep window reveal

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Renovation & Reuse

Giving existing buildings a new life, respecting historic masonry while drastically reducing embodied carbon.

Detail A / Old brick, new plaster

Detail B / Restored light wells

Detail C / Reclaimed timber

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Renovation & Reuse

Giving existing buildings a new life, respecting historic masonry while drastically reducing embodied carbon.

Detail A / Old brick, new plaster

Detail B / Restored light wells

Detail C / Reclaimed timber

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Landscape

Gardens, terraces, retaining walls and topographic integration directly surrounding the building.

Detail A / Concrete garden wall

Detail B / Bamboo screen

Detail C / Terraced volumes

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Landscape

Gardens, terraces, retaining walls and topographic integration directly surrounding the building.

Detail A / Concrete garden wall

Detail B / Bamboo screen

Detail C / Terraced volumes

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Planning & Permits

Rigorous Swiss municipal feasibility studies, historical monument permissions, and SIA tendering.

Detail A / Hand-drawn studies

Detail B / Site model

Detail C / Permit model

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Planning & Permits

Rigorous Swiss municipal feasibility studies, historical monument permissions, and SIA tendering.

Detail A / Hand-drawn studies

Detail B / Site model

Detail C / Permit model

Explore discipline →

How we work

Methodical linear delivery • SIA phase 11 to 53

01 — Listen

Brief & site

Thorough client interview, spatial requirements, budget boundary analysis, and micro-climate site visits.

02 — Explore

Sketches & model

Hand drafts, structural card models, daylight calculations, and testing spatial relationships.

03 — Design

Developed design

Refining exact materiality, acoustic assemblies, envelope specification, and formal municipal permit submission.

04 — Detail

Tender & spec

1:10 and 1:1 millwork construction details, engineer coordination, and subcontractor competitive tendering.

05 — Build

Supervision

Uncompromising on-site lead supervision, cost control, defect clearing, and seamless key handover.

Light, weight, texture, time.

Material truth • Zürich Switzerland

Studio

SASSO Architecture & Interiors GmbH, Neugasse 29, 8005 Zürich, is responsible for the processing of personal data on this website.

[ Monograph perspective ]

A studio of architects, interior designers and model makers. We keep the team small so every project is led by a partner from first sketch to handover.

Studio in Zürich. Working across Europe — from the Alpine valleys of Graubünden to the coastal peninsulas of Brittany.

Careers →

Press & publications →

[ Founding partner ]

Partner [01]

Lukas Meier

Founding partner • Dipl. Arch. ETH SIA

[ Founding partner ]

Partner [02]

Elena Keller

Founding partner • Interior architect VSI.ASAI

Let’s build something grounded.

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Neugasse 29, 8005 Zürich, Switzerland

[ General correspondence ]

hello@sasso.example

+41 44 280 11 00

[ Protocols ]

Studio visits by appointment only. Architectural and interior tenders accepted under standard SIA norms.

Currently accepting projects for 2026 / 2027