CHF2'490/Month
Neptunstrasse 4, 9000 St. Gallen·4 days ago
As of 24 Aug 2026
The asking price is 29.4% above the median of .
This listingCHF 2'490/month
CHF 1'925
Median
How fast do rentals move here?
A typical listing stays online for about 24 days.
ARE transit class A — high-frequency service right at the door.
95% built-up area within 500 m.
Mostly singles and couples · around 92 people in the neighbourhood.
138 %
Lower than 5% of municipalities in the canton
ESTV · 2026
Times refer to the route on foot.
noise level by day
Elevated noise levels
More exposed to traffic noise than typical residential spots.
Night
58 dB
Loudest source
Road
Louder than 96% in the canton
Measured noise level, placed on a scale of everyday sounds.
Pollutant levels are above the WHO guideline.
Hardly any elevated radon levels in the area.
Nearly all buildings
Available from 3 networks.

**Neptun New Building Project**
Welcome to the Neptun new building project on Rorschacher-/Neptun-/Falkensteinstrasse in St. Gallen. Here, 54 high-quality rental apartments and attractive commercial spaces are being built, combining modern design, comfort, and sustainable construction.
The apartments impress with clear architecture, well-thought-out floor plans, and high-quality equipment ? ideal for singles, couples, professionals, and city lovers who want to combine urban living with quality.
Equipment
High-quality oak parquet in all living and sleeping rooms
Modern kitchen with high-quality appliances
Practical built-in closets provide additional storage space
Own washing tower in wet cell, in 8 small apartments integrated into the kitchen element or as a combination device
Floor heating in all rooms
Electrically operated lamella shutters
Jointed arm, vertical awnings on the loggia and side mast screen on the roof terraces
Fiber optic connection available
Other
Elevator is available
Barrier-free access
Each apartment has a basement compartment with power connection
Sustainable heat generation via district heating from St. Gallen City Works
Plastic-metal windows with triple-glazed insulation
Intercom system with video device
Community room for shared use
Certification according to SNBS-Gold
Smarthome
Parking spaces can be rented additionally, partly equipped with E-charging stations
Location
The Neptun development is located in a lively and well-connected district in the east of the city of St. Gallen. Shopping facilities, gastronomy, schools, and service offerings are in the immediate vicinity.
The connection to public transport is excellent and allows for a quick connection to the city center, St. Gallen train station, and in the direction of Lake Constance. At the same time, nearby green spaces and walking paths provide space for relaxation in everyday life.
You can view further details on the Neptun St. Gallen project website under the following link: https://stgallen-neptun.ch/
Interested? You can contact us and we will put you on our list of interested parties.