Estimate renovation costs in St. Gallen

Local housing stock

In St. Gallen, the federal building register lists 8'987 residential buildings and 43'827 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

74 %built before 1980

60 %heated by oil or gas

17 %electric hot water

9.8 %with declared solar thermal

Age of residential buildings

74 % built before 1980

Before 191936 %
1919–19455 %
1946–196013 %
1961–197010 %
1971–198010 %
1981–19907 %
1991–20006 %
2001–20105 %
Since 20116 %

Construction year does not reveal past renovations: check the current insulation condition.

Main heating energy

38 % · Gas

Gas38 %
Heating oil22 %
Heat pump20 %
District heating16 %
Wood2 %
Electricity1 %

This distribution describes recorded buildings, not your system's consumption or efficiency.

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	38 %	27.4 %
Heating oil	22 %	14.1 %
District heating	16 %	13.9 %
Heat pump	20 %	17.3 %
Electricity	1 %	17 %
Wood	2 %	0.5 %
Solar thermal	0 %	9.6 %

Each line gives the share of buildings using that energy, separately for heating and for hot water. The two columns do not always reach 100%: some buildings combine two systems, or reported none.

Type of heating system

Boiler (unspecified)61.7 %
Heat pump20.4 %
Heat exchanger (district)16.4 %
Condensing boiler0.7 %
Central electric heating0.7 %

A standard non-condensing boiler is usually older and less efficient.

Houses or apartment buildings?

Single-family houses36.6 %
Two-dwelling houses5.6 %
Apartment buildings (3+)57.9 %

12.8 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 3
median footprint: 144 m²
median dwelling area: 82 m²

Dwellings by number of rooms

9.1 %1 rm

15.9 %2 rm

25.1 %3 rm

31.6 %4 rm

18.3 %5+ rm

Dwellings per building

1 dwelling36.6 %
2 to 421.5 %
5 to 929.1 %
10 to 1911.1 %
20 or more1.7 %

Renovations, heritage and volumes

For your renovation projects in St. Gallen, the RegBL data provides essential guidance. With 122 protected heritage buildings out of 147 known, contacting the municipality early is vital for securing building permits. Data regarding house volume is partial, covering only 3 buildings measured under the SIA 416 standard with a median of 805 m3; this metric helps scale your insulation or heating works. Please note that the renovation year is not recorded for any of the 8987 buildings listed in this register, meaning this specific information is currently unavailable for your strategic planning.

122

buildings flagged as protected

status known for 147 of 8'987 buildings; check with the municipality

805 m³

median house volume (SIA 416)

measured for 3 of 3'286 houses

Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.

Renovating in St. Gallen: what to know

Planning works in St. Gallen, canton of St. Gallen? Before requesting quotes, local context helps: climate drives the value of insulation and heating, cantonal rules govern boiler replacement, and tax deductions can noticeably reduce the bill.

Renovation works in St. Gallen