1971 gas-heated house, extra storey
Heat pumps and air conditioning (your trade)Roofs (your trade)Facades (your trade)New builds (your trade)
Heat pump and solar to offer.
- End of public notice
- 12 Nov
- Your turn
- ≈ Dec 2026
- Size
- ≈ Medium
- Already awarded?
- Maybefor roofs
Who to call
••••••• SAArchitect or project designer · Uster
- An added storey on the building
- A garage
- Gas heating today
- The ground: flat (4%)
All the details and sources
Your turn≈ In 2 months (Dec 2026). You are among the first.
All the trades on this job, in the order they come in
Facades, roofs (your trade)Dec 2026 to Mar 2028
Heat pumps and air conditioning, new builds (your trade)Dec 2026 to May 2028
InteriorsJan 2027 to May 2028
≈ from the publication date and the usual length of a job.
Who to call••••••• SA, design office
- Architect or project designer••••••• SARegistered office: Uster
- Maybe already awarded (roofs)The design firm is itself a company in this trade.
Companies only, never individuals. The phone number comes from the public directory search.ch: check it is the same company.
The buildingRoof with very good solar potential
very goodsolar potential of the roof, 144 m²
- Building built in 1971
- Current heating: gas
- 1 dwelling
The official applicationAufstockung Einfamilienhaus und Umbau Carport · official text in German
Application under review, since 23 October 2026.
Official text, in German
Aufstockung Einfamilienhaus und Umbau Carport
- Plot of about 508 m² (area calculated from the cadastral plan)
- ≈ Size estimated from the type of works.
Grants for your client2 grants to suggest, to check
- Possible subsidy: replacing the heating with a heat pump (Förderprogramm Energie des Kantons Zürich)Cantonal programme: Zürich leprogrammebatiments.ch
- Possible subsidy: photovoltaic system (Rétribution unique (Pronovo))Federal support, valid throughout Switzerland pronovo.ch
Programmes change: check before you mention them.
Sources15 sources, with their links
- Kranli estimates and calculationsYour turn · The official application · Ground and season
- Portail des feuilles officielles (SECO) ; Registre du commerce (OFJ, LINDAS)23 October 2026 · Who to callamtsblattportal.ch
- Buildings register (FSO)5 October 2026 · 2024 · The buildinghousing-stat.ch
- OFEN, toit-solaire23 October 2026 · The buildinguvek-gis.admin.ch/BFE/sonnendach
- Official publication (Official Gazettes Portal (SECO))23 October 2026 · The official applicationamtsblattportal.ch
- Plan cadastral des cantons (geo.admin.ch), surface calculée23 October 2026 · The official applicationmap.geo.admin.ch
- Programme Bâtiments et programme cantonal (ZH)23 October 2026 · Grants for your clientleprogrammebatiments.ch
- Pronovo one-off payment (federal ordinance)23 October 2026 · Grants for your clientpronovo.ch
- swisstopo, modèle de terrain swissALTI3D (service de profil geo.admin.ch)23 October 2026 · Ground and seasonmap.geo.admin.ch
- MétéoSuisse, normes climatologiques 1991-202019 June 2025 · Ground and seasonmeteosuisse.admin.ch
- MétéoSuisse, danger de grêle (taille des grêlons, période de retour de 50 ans)23 October 2026 · Ground and seasonmeteosuisse.admin.ch
- ARE, zones à bâtir harmonisées23 October 2026 · Local rulesmap.geo.admin.ch/
- Swiss Noise Abatement Ordinance (NAO), annex 6: planning values for a new installationLocal rulesfedlex.admin.ch/eli/cc/1987/338_338_338/fr
- geodienste.ch, degrés de sensibilité au bruit (canton)23 October 2026 · Local rulesgeodienste.ch
- geodienste.ch, protection des eaux (canton)23 October 2026 · Local rulesgeodienste.ch
Ground and seasonAlmost flat ground (4 %) · outdoors from March to November · hailstones of 3.5 cm
4 %Almost flat groundMeasured within 20 m of the building.
- ≈ 10 min drive from Uster (4 km)
- Heat pumps and air conditioning: ≈ the replacement will probably fall in the heating season (12 of 18 months): think about temporary heating during the works.
- Roofs: ≈ here, outdoor work mostly happens from March to November: plan for it.
- ≈ Hail: 3.5 cm hailstones expected once in 50 years hereFor roof, façade, panels and blinds: hail resistance HW 4 or more (protection target of the SIA 261/1 standard, according to the Swiss Hail Register)
Local rulesresidential zone · noise sensitivity II · water protection Au
- Building zone: residential zone
- Noise sensitivity level: IIFor a heat pump installed outdoors, the night-time limits are lower than in a mixed zone.
- Water protection sector AuGeothermal probes: check with the canton before any drilling