Estimate renovation costs in Altstätten

Local housing stock

In Altstätten, the federal building register lists 3'199 residential buildings and 6'315 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

59 %built before 1980

48 %heated by oil or gas

23.2 %electric hot water

4.4 %with declared solar thermal

Age of residential buildings

59 % built before 1980

Before 191928 %
1919–19455 %
1946–19607 %
1961–19709 %
1971–198010 %
1981–199010 %
1991–200010 %
2001–201011 %
Since 201110 %

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

Main heating energy

30 % · Heat pump

Heat pump30 %
Gas25 %
Heating oil23 %
Wood14 %
District heating6 %
Electricity1 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	25 %	15.7 %
Heating oil	23 %	16.4 %
District heating	6 %	6.2 %
Heat pump	30 %	28.7 %
Electricity	1 %	23.2 %
Wood	14 %	5.3 %
Solar thermal	0 %	4.4 %

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)62 %
Heat pump30.4 %
Heat exchanger (district)6.4 %
Central electric heating0.5 %

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

Houses or apartment buildings?

Single-family houses77.2 %
Two-dwelling houses8.7 %
Apartment buildings (3+)14.2 %

15 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 2
median footprint: 117 m²
median dwelling area: 99 m²

Dwellings by number of rooms

4.9 %1 rm

13.1 %2 rm

21.6 %3 rm

26.7 %4 rm

33.8 %5+ rm

Dwellings per building

1 dwelling77.2 %
2 to 414.6 %
5 to 95.2 %
10 to 192.5 %
20 or more0.5 %

Renovations, heritage and volumes

For your renovation plans in Altstätten, official RegBL data provides crucial guidance. With 64 buildings under heritage protection out of 3199 registered, contacting the municipality early is essential to secure necessary permits. The building volume, with a median of 767 m3 for 2469 houses, helps you gauge the scale of insulation or heating upgrades. Note that data coverage is partial; only one building was measured using the SIA 416 standard, and the renovation year is currently unavailable. Using these specific figures ensures that your planning process remains aligned with the municipality's structural and historical requirements.

64

buildings flagged as protected

status known for 295 of 3'199 buildings; check with the municipality

767 m³

median house volume (SIA 416)

measured for 1 of 2'469 houses

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

Renovating in Altstätten: what to know

Planning works in Altstätten, 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 Altstätten