CHF1'425'000
Unterdorfstrasse 5, 9621 Oberhelfenschwil
New development·weitblick-immo.ch
As of 23 Aug 2026
The asking price is 79.2% above the median of .
This listingCHF 1'425'000
CHF 795'000
Median
Is there room to negotiate?
A typical listing stays on the market for about 19 days. 2% of active listings have cut their asking price in the last 90 days. Asking prices per m² are about 0.2% lower than a month ago.
82% green and natural space within 500 m.
Mostly couples · around 21 people in the neighbourhood.
120 %
Lower than 30% of municipalities in the canton
ESTV · 2026
Times refer to the route on foot.
noise level by day
Quiet location
Hardly any road, rail or air traffic noise.
Night
27 dB
Loudest source
Road
Quieter than 91% in the canton
Measured noise level, placed on a scale of everyday sounds.
Pollutant levels are below the WHO guideline.
Hardly any elevated radon levels in the area.
Nearly all buildings
Available from 2 networks.
In a sunny location in Oberhelfenschwil, this spacious 5.5-room single-family house is being built in high-quality solid construction. The modern living concept, plenty of space for the whole family, and the magnificent view of the Säntis make this new building project a special home.
On a plot of 751 m², you can expect around 150 m² of living space, spacious and bright rooms, and plenty of space in the interior and exterior areas. Thanks to the early project phase, you can incorporate numerous buyer wishes into the materialization and design of your future home.
The highlights at a glance
5.5 rooms with around 150 m² of living space
751 m² of plot area
Magnificent and unobstructed view of the Säntis
Spacious living and dining area with direct access to the terrace
Modern kitchen with cooking island
Two high-quality bathrooms
Double garage and additional outdoor parking spaces
High-quality wooden flooring and modern materialization
Underfloor heating
Photovoltaic system
Electric shutters and triple glazing
Numerous possibilities for individual buyer wishes
Peaceful living and yet well connected
The sunny location combines nature and tranquility with short distances in everyday life. Shopping opportunities and the bus stop are just a few minutes' walk away. The Bütschwil and Brunnadern train stations are within a short drive and the motorway access towards Wil is only about 20 minutes away.
Nature, hiking trails, and numerous leisure activities begin practically in front of the doorstep. A special highlight for families: the village's own ski lift is located directly opposite.
Turnkey at a fixed price
The single-family house is offered turnkey at a fixed price. This gives you cost security and at the same time the opportunity to design your future home in many areas according to your personal ideas.
Would you like to know more about this new building project?
Order the complete sales documentation with floor plans and construction description now or arrange a personal appointment on site. We would be happy to show you the plot and the unique view of the Säntis.