Key location factors for Knonau at a glance.
Knonau is predominantly a single-family housing area: 71 % of residential buildings are single-family homes, 9 % have 2 units.
The median build year 1994 is close to the Swiss average (1991). 34 % of buildings date from before 1980.
Heat pumps are recorded in 21 % 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 Knonau — street by street. Check a specific address:
Rents in the range of CHF 26-32/m²/mo. serve as a reference value for market-rate listings in Knonau. Individual listings may vary significantly depending on location, condition, and floor.
Rental prices in Knonau are currently typically in the range CHF 26-32 per m² per month (range depending on location, condition and floor). A 70 m² apartment thus comes to roughly CHF 1,850–2,200 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 Knonau is typically in the range CHF 9'300-10'400 per m². The actual range depends heavily on location, year built, finish standard and views.
The m² price for houses in Knonau is typically in the range CHF 9'300-11'900 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 Knonau is 16.0 % on income — for a gross income of CHF 150,000 (single, without church tax) this amounts to roughly CHF 24,040 per year. The Swiss median is 19.8 %; the burden in Knonau is below. Source: Swiss Federal Tax Administration tax burden statistics 2025.
No — in Knonau the share of second homes is 7.8 %, below the 20 % threshold. The second-home law does not apply here, and new second homes are generally permitted. Source: Federal Office for Spatial Development (ARE), 2025.
A first reference point is the local price per square metre: in Knonau the median is around CHF 9'818 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 Knonau colour-coded.
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