Key location factors for Le Trétien at a glance.
Le Trétien is predominantly a single-family housing area: 78 % of residential buildings are single-family homes, 12 % have 2 units.
The median build year 1980 is below the Swiss average (1991). 46 % of buildings date from before 1980.
Heat pumps are recorded in 15 % of updated GWR entries (from 2015).
Source: Own analysis of public Swiss real estate data · July 2026 · Net rent excl. utilities
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Noise, sunlight and public transport vary significantly within Le Trétien — street by street. Check a specific address:
Rents in the range of CHF 18-22/m²/mo. serve as a reference value for market-rate listings in Le Trétien. Individual listings may vary significantly depending on location, condition, and floor.
Rental prices in Le Trétien are currently typically in the range CHF 18-22 per m² per month (range depending on location, condition and floor). A 70 m² apartment thus comes to roughly CHF 1,300–1,500 per month as net cold rent — the effective market range starts lower for small apartments and rises disproportionately for large ones.
The m² price for owner-occupied apartments in Le Trétien is typically in the range CHF 4'100-4'600 per m². The actual range depends heavily on location, year built, finish standard and views.
The m² price for houses in Le Trétien is typically in the range CHF 3'900-5'100 per m² (defensive range ±12 %). House prices vary considerably depending on plot size, buildability and micro-location within the municipality — a direct m² comparison serves only as an initial orientation.
The effective tax burden in Le Trétien is 20.5 % on income — for a gross income of CHF 150,000 (single, without church tax) this amounts to roughly CHF 30,763 per year. The Swiss median is 19.8 %; the burden in Le Trétien is above. Source: Swiss Federal Tax Administration tax burden statistics 2025.
Yes — in Le Trétien the share of second homes is 47.9 %, above the 20 % threshold. The second-home law applies and construction of new second homes is restricted (primary-residence obligation for new builds, exceptions for legacy dwellings). Source: Federal Office for Spatial Development (ARE), 2025.
A first reference point is the local price per square metre: in Le Trétien the median is around CHF 4'368 per m² for condominiums. A realistic estimate also factors in location, year of construction, condition, fit-out quality and view. For a free, property-specific indication you can use the Immoskop analysis tool: enter the address and property details to receive a data-based reference value — as guidance, not a substitute for an official or bank-verified valuation.
Comparison with neighbouring municipalities — purchase price difference to Le Trétien colour-coded.
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