J. Zornio S.A.
2826 Corban · about 134 km
Based in Corban, family-owned J. Zornio SA carries out masonry, reinforced concrete work, interior renovations, tiling and outdoor landscaping throughout the Jura.
zornio.chTerrace construction · Gossau (SG)

At a glance
Small project
CHF 3'600 – CHF 12'400
Typical project
CHF 6'200 – CHF 20'200
Large project
CHF 10'300 – CHF 32'700
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 13 m² | CHF 3'600 | CHF 12'400 | CHF 500 |
| Typical project | 25 m² | CHF 6'200 | CHF 20'200 | CHF 500 |
| Large project | 44 m² | CHF 10'300 | CHF 32'700 | CHF 400 |
Computed with our estimator for Gossau (SG) (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Gossau (SG), the federal building register lists 2'643 residential buildings and 8'926 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
58 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
35 % · Gas
This distribution describes recorded buildings, not your system's consumption or efficiency.
For your renovation projects in Gossau, the RegBL data provides essential guidance despite partial coverage. Among the 2643 total buildings, 44 have known heritage status, with 18 officially protected; you should contact the municipality early to discuss permit requirements. Regarding building volume, the median figure is 795 m3, which helps determine the scale of potential heating or insulation work. Please note that this volume metric is based on only 9 measured buildings, as 1485 properties rely on different or unknown standards. Utilizing these figures allows you to plan your renovation more effectively while respecting local requirements.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
The base of your terrace is the guarantor of its long-term stability. The support, whether it is a concrete slab, pedestals, or a gravel bed, matters as much as the final covering.
Careful preparation prevents soil subsidence or standing water accumulation that could damage the structure over the seasons. Ensure a slight slope to allow for efficient drainage of rainwater.
Well-executed earthworks from the beginning will save you from costly and tedious repairs in the future. Invest time in this initial step to ensure a solid, lasting foundation for your outdoor living space.
The choice of covering influences not only aesthetics but also future maintenance. In regions like Gossau, where winters can be harsh, it is imperative to choose frost-resistant pavers and tiles.
Natural stone, porcelain stoneware, or treated wood are common options that offer different thermal and mechanical properties. Consider durability and ease of cleaning as well.
Each material has specific installation constraints that are best anticipated to ensure excellent resistance to bad weather and high traffic. A thoughtful selection will protect your investment long-term and maintain your home's appearance.
It is recommended to check property line distances and current regulations in the Canton of St. Gallen before any excavation. Complying with current standards ensures the safety of your construction and avoids any disputes with neighbors or authorities.
Do not hesitate to contact your local planning department to validate your plan. Early clarification prevents legal issues and ensures all construction requirements are met.
The cost of terrace construction depends on many factors such as surface area, chosen material, and the complexity of preparatory work. To avoid financial surprises, it is important to get a clear estimate from the start.
Our free RenoIndex tool is designed to offer you a realistic price range based on current local pricing. By using this resource, you can better plan your investment, compare professional quotes, and move forward confidently with your renovation project.
Solid financial planning is the foundation for a successful and stress-free project.
1. Estimate
Set a budget range with the estimator.
2. Grants
Apply before work starts.
3. Quotes
Compare at least 3 quotes.
4. Permit
Check with the municipality whether a permit is needed.
5. Works
Follow the site and do a written handover.
No specific grant listed for this work. Maintenance tax deductions may still apply.
2826 Corban · about 134 km
Based in Corban, family-owned J. Zornio SA carries out masonry, reinforced concrete work, interior renovations, tiling and outdoor landscaping throughout the Jura.
zornio.ch2746 Crémines · about 136.4 km
Specialized company for painting, facade renovation, surface cleaning, and wood treatment for both interior and exterior residential projects.
malerei-top-demestre.com2832 Rebeuvelier · about 138.4 km
KD Constructions Sàrl, based in Rebeuvelier, specializes in general building construction and renovation services.
jurabitat.ch3984 Fieschertal · about 139.4 km
Gombau AG is a construction company in Fieschertal specializing in civil engineering, building construction, and outdoor landscaping.
gombau.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
A municipal permit is generally required for any covered or raised terrace. It is advisable to consult the local building regulations at the cantonal and municipal levels to verify property line distances and other specific constraints before starting construction.
In frost-prone regions, it is imperative to select resistant materials such as ceramic tiles, natural stone, or certified pavers. Durability also depends on the quality of the installation and proper water drainage management to prevent frost damage during winter months.
You can use the free RenoIndex estimator. By entering your project details, you will receive a price range adapted to local market standards, allowing you to prepare your budget knowledgeably before contacting any companies.
The base ensures overall stability and prevents soil settling or standing water. Whether it is a concrete slab or a gravel bed, a solid base prevents early and costly repairs due to natural ground movement.