RenoIndexEstimate my project

St. Gallen

Renovation works in Flawil

Local housing stock

In Flawil, the federal building register lists 1'907 residential buildings and 4'993 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

65 %built before 1980
69 %heated by oil or gas
15.1 %electric hot water
5.8 %with declared solar thermal

Age of residential buildings

65 % built before 1980

  • Before 191919 %
  • 1919–194519 %
  • 1946–196010 %
  • 1961–197010 %
  • 1971–19807 %
  • 1981–19909 %
  • 1991–200010 %
  • 2001–20109 %
  • Since 20117 %

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

Main heating energy

45 % · Gas

  • Gas45 %
  • Heating oil24 %
  • Heat pump24 %
  • Wood5 %
  • Electricity2 %

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

Heating and hot water: which energies?

EnergyHeatingHot water
Gas45 %36.9 %
Heating oil24 %17.2 %
Heat pump24 %22.4 %
Electricity2 %15.1 %
Wood5 %2.3 %
Solar thermal0 %5.9 %

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)73.8 %
  • Heat pump24 %
  • Central electric heating1.1 %
  • Direct electric heaters0.5 %

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

Houses or apartment buildings?

  • Single-family houses64.8 %
  • Two-dwelling houses10.7 %
  • Apartment buildings (3+)24.5 %

10.3 % of buildings mix housing with shops or offices.

The typical building

storeys (median)
3
median footprint
108 m²
median dwelling area
95 m²

Dwellings by number of rooms

2.9 %1 rm
12.7 %2 rm
23 %3 rm
30.5 %4 rm
30.9 %5+ rm

Dwellings per building

  • 1 dwelling64.8 %
  • 2 to 421.2 %
  • 5 to 98.2 %
  • 10 to 194.9 %
  • 20 or more0.9 %

Renovations, heritage and volumes

When planning renovations in Flawil, official building registry data offers vital context. Out of 1907 recorded buildings, 13 are officially listed under heritage protection, making it essential to contact municipal authorities early to understand permit requirements. Data coverage regarding building volume is currently partial, as only one building has been measured according to the SIA 416 standard, showing a median volume of 817 m3. Given this limited sample size, homeowners should ensure a professional assessment of their property's specific scale to accurately plan necessary heating system upgrades or insulation works for their upcoming renovation projects.

13
buildings flagged as protected
status known for 91 of 1'907 buildings; check with the municipality
817 m³
median house volume (SIA 416)
measured for 1 of 1'236 houses

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

Renovating in Flawil: what to know

Planning works in Flawil, 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 Flawil

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