
City · Basel-Landschaft
Therwil is a municipality in the district of Arlesheim in the canton of Basel-Country in Switzerland.
The rental vacancy rate is 0.86%, 3% above the cantonal average (0.83 %). The municipal tax multiplier (Steuerfuss) is 52%, 9% below the cantonal average (57 %) — tax-favourable. Median taxable income is CHF 72'200, 17% above the Swiss median (CHF 61'929). Therwil has 10'141 residents (2025).
Source: Swiss Federal Statistical Office (BFS).
CHF 1'050'000
3.5 rooms · 131 m²
Bahnhofstrasse 21B, 4104 Oberwil BL
1.7 kmCHF 1'150'000
4.5 rooms · 115 m²
Am Chatzebach 22, 4104 Oberwil
CHF 1'355'000
4.5 rooms · 118 m²
4104 Oberwil BL
CHF 795'000
3.5 rooms · 81 m²
Oberwil BL, 4104 Oberwil BL

CHF 1'590'000
3.5 rooms · 123 m²
4104 Oberwil BL
CHF 1'600'000
4.5 rooms · 146 m²
4104 Oberwil
25 apartments are currently listed to buy in Therwil on Homematch. The selection updates throughout the day as agencies publish new listings.
The median asking price in Therwil is around CHF 8'186 per m². For an 80 m² property that's roughly CHF 654'869 — actual prices vary widely by neighbourhood, age and condition.
Therwil is located in the canton of Basel-Landschaft.
Therwil has approximately 10'141 residents.
The municipal tax multiplier (Steuerfuss) in Therwil is 52% of the cantonal base rate. Note: this is a multiplier of the cantonal income tax, not an effective tax rate.