Data sources
Ubivo relies exclusively on official and open Swiss data sources. The source, currency and reliability of each value are also visible in the individual report. If reliability is modelled (regional rather than point-precise), you'll see that there.
No black box
Every value in the report shows its source, data vintage and reliability. If a number is missing, the report says so. Nothing is ever guessed.
- 65
- factors across 6 themes
- 36
- public Swiss data sources
- 2,108
- municipalities with electricity, tax & demographic data
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Address directory (geocoding), digital elevation model, building polygons.
Median sale prices for single-family houses and owner-occupied flats per municipality (reported by land registries and notaries), for the price context. Canton of Zurich only.
Property gains tax rates for all 26 cantons (table 3, 2025 tax period) plus taxing authority and revenue split, for the exit costs in the dossier.
Municipal multipliers for the property gains tax in the five cantons whose tariff yields only the simple tax. 520 municipalities, from the cantons’ official publications.
Building master data (year of construction, category, heating and energy source) via geo.admin.ch, for the building factor and the heating renovation check.
Federal building identifier (EGID) for the address, so the building-register query hits exactly the building at that address rather than the nearest one. Updated daily.
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Weather archives (ERA5 reanalysis for climate trend), elevation, air quality (CAMS), all without an API key.
Building polygons for shadow casting, POIs (shops, public transport, schools, …) for local amenities. ODbL licence.
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Probability of exceeding the radon reference value (300 Bq/m³) per 10×10 m cell.
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Electricity tariffs per municipality (standard household H4, 4,500 kWh).
Foundation soil class A–F per SIA 261 as a seismic amplification indicator.
Public-transport service quality classes A–D, travel time to centres (public transport + road), road traffic load (road-traffic factor + congestion risk along the commute route), housing inventory / share of second homes, landscape typology (38 types), harmonised building zones.
Official annual-mean immission maps for nitrogen dioxide and fine particulate matter PM2.5 (street-level modelled raster, updated yearly). Point value at the location via WMS.
Road and rail noise (Lr day/night in 5 dB bands) read from the official noise raster maps: a 10 × 10 m grid cell at the location, 4 m above ground, model calculation as of 2021.
- MeteoSwiss Fog climatology (planned)in preparation
Fog frequency as a dataset bundle (weather reanalysis does not capture ground fog).
Assignment of every municipality to its premium region (priminfo.admin.ch).
Municipal tax rates for natural and legal persons (as of 2026, 86 municipalities).
Total tax rates of all municipalities (as of 2025, 80 municipalities).
Current municipal tax rate/multiplier/coefficient for all 26 cantons (~2054 municipalities, as of 2022–2026) as a freshness supplement alongside the FTA comparison score. Open data where available, otherwise official PDFs/Excels/HTML parsed. NOT comparable across cantons. Pure context. BS-Bettingen: historical estimate (public source unavailable; mid-range 34–39 %); GL town of Glarus 2026: state before the December 2025 budget decision.
Effective tax burden per municipality and income bracket for 6 household profiles (single/married one income/with children/dual income/single parent 50k–1 Mio, pensioners 50k–150k), 2110 municipalities Switzerland-wide. Pulled directly from the official online tax calculator. Data year per canton: 2026, except SG (2025). 127 pre-merger FSO numbers stay on 2018 for historical consistency.
Number of providers with their own fixed network + fibre availability (FTTB/FTTH) per 250 m grid cell (WMS GetFeatureInfo).
Population trend per municipality (10-year growth 2015–2025) from the pxweb time series, 2115 municipalities.
Vacancy rate per municipality (share of vacant dwellings offered on the market, reference date 1 June) from the official SDMX dataflow CH1.LWZ:DF_LWZ_1, 2116 municipalities.
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Flood indication per return period (50/100/250/500 yrs) via WMS GetFeatureInfo. Overview map, not legally binding.
Disposition areas for gravitational natural hazards (avalanches, rockfall, debris flows, landslides). Synoptic overview, not the binding cantonal hazard map.
Polluted sites (disposal sites, industrial and commercial sites, accident sites, shooting ranges) with their status under the Contaminated Sites Ordinance, from 22 cantons via the harmonised geodienste.ch service. NW, OW, SG and VD do not release their data for this use.
Polluted sites in public transport, the military and civil airfields via geo.admin.ch.
Outline and EGRID of an address’s plot, only to check whether a polluted site lies on the same plot. Not displayed.
Police-registered road accidents with personal injury (location, severity, pedestrian/cyclist involvement, year). Density within 300 m of the location.
Aircraft noise dB values (day + night) around Swiss civil airfields. Nearest noise isophone at the location (1 dB precision).
Offences under the Swiss Criminal Code per 1000 inhabitants by canton (pxweb time series). Cantonal granularity: no municipal data nationwide.
Premiums of all insurers per premium region since 2011 (adults, standard model with accident cover; deductibles 300 and 2500; alternative models), from the files the FOPH publishes on premium day (opendata.bagnet.ch).
Costs per insured person and premium reductions per canton, since 1997 (kvd.bag.admin.ch).
Extra-high-voltage lines > 36 kV (overhead and cable lines, voltage, owner) for high-voltage proximity.
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Solar suitability of each roof surface (class 1–5) + annual PV yield, for the building's solar potential.
Official Swiss public-transport timetable for door-to-door commute time (personalised, with workplace).
Car routing for commute time (free flow) + route geometry for congestion-risk sampling. Open-source engine.
Licences & attribution
- OpenStreetMap data under ODbL. We display the OSM attribution visibly on every page.
- Air-quality data from Copernicus CAMS (EU programme), freely usable with source attribution.
- swisstopo addresses and elevation model as official geo base data.
If a source is missing or you have a note on data quality: hallo@ubivo.ch