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St. Gallen

Renovation works in Widnau

Local housing stock

In Widnau, the federal building register lists 2'328 residential buildings and 4'751 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

46 %built before 1980
62 %heated by oil or gas
28.9 %electric hot water
4.5 %with declared solar thermal

Age of residential buildings

46 % built before 1980

  • Before 19198 %
  • 1919–19455 %
  • 1946–19609 %
  • 1961–197012 %
  • 1971–198012 %
  • 1981–199010 %
  • 1991–200017 %
  • 2001–201016 %
  • Since 201112 %

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

Main heating energy

37 % · Gas

  • Gas37 %
  • Heat pump37 %
  • Heating oil25 %
  • Wood1 %

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

Heating and hot water: which energies?

EnergyHeatingHot water
Gas37 %14.4 %
Heating oil25 %16.1 %
Heat pump37 %35.8 %
Electricity0 %28.9 %
Wood1 %0.2 %
Solar thermal0 %4.5 %

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)62.6 %
  • Heat pump36.9 %

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

Houses or apartment buildings?

  • Single-family houses79.6 %
  • Two-dwelling houses5.9 %
  • Apartment buildings (3+)14.5 %

5.1 % of buildings mix housing with shops or offices.

The typical building

storeys (median)
2
median footprint
122 m²
median dwelling area
111 m²

Dwellings by number of rooms

2.7 %1 rm
11.6 %2 rm
19.1 %3 rm
28.7 %4 rm
37.9 %5+ rm

Dwellings per building

  • 1 dwelling79.6 %
  • 2 to 49.3 %
  • 5 to 96.7 %
  • 10 to 194.3 %
  • 20 or more0.1 %

Renovations, heritage and volumes

For your renovation projects in Widnau, the RegBL data provides essential guidance. With partial data coverage, note that 43 buildings are under heritage protection, necessitating specific permits; contact the municipality early to discuss your plans. Furthermore, for the 1853 houses recorded, the median volume according to SIA 416 standards is 42795 m3. This figure is a critical metric for accurately scaling your heating systems or insulation upgrades. Relying on these official specifications ensures that your renovation project is technically sound, regulatory compliant, and that your budget estimates remain realistic from the very beginning of your planning process.

43
buildings flagged as protected
status known for 64 of 2'328 buildings; check with the municipality
42'795 m³
median house volume (SIA 416)
measured for 1 of 1'853 houses

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

Renovating in Widnau: what to know

Planning works in Widnau, 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.

Choose your works in Widnau

Nearby municipalities : St. Gallen · Wil (SG) · Rapperswil-Jona · Gossau (SG) · Buchs (SG) · Altstätten · Flawil · Uzwil