Estimate renovation costs in Rorschach

Local housing stock

In Rorschach, the federal building register lists 1'065 residential buildings and 5'473 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

85 %built before 1980

69 %heated by oil or gas

19.1 %electric hot water

1.7 %with declared solar thermal

Age of residential buildings

85 % built before 1980

Before 191945 %
1919–194516 %
1946–196014 %
1961–19707 %
1971–19803 %
1981–19904 %
1991–20005 %
2001–20103 %
Since 20115 %

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

Main heating energy

40 % · Heating oil

Heating oil40 %
Gas29 %
Heat pump19 %
District heating7 %
Electricity3 %
Wood1 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	29 %	27.2 %
Heating oil	40 %	25.4 %
District heating	7 %	5.9 %
Heat pump	19 %	19.4 %
Electricity	3 %	19.1 %
Wood	1 %	0.4 %
Solar thermal	0 %	1.7 %

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)69.1 %
Heat pump19.5 %
Heat exchanger (district)6.9 %
Central electric heating2.4 %
Condensing boiler1.1 %
Direct electric heaters1 %

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

Houses or apartment buildings?

Single-family houses26.3 %
Two-dwelling houses10 %
Apartment buildings (3+)63.8 %

23.8 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 4
median footprint: 146 m²
median dwelling area: 79 m²

Dwellings by number of rooms

7.2 %1 rm

17.1 %2 rm

30.6 %3 rm

30.7 %4 rm

14.4 %5+ rm

Dwellings per building

1 dwelling26.3 %
2 to 436.7 %
5 to 925.6 %
10 to 198.5 %
20 or more2.8 %

Renovations, heritage and volumes

For your renovation plans in Rorschach, the official register indicates that 23 of the 1065 buildings are under heritage protection, necessitating early consultation with municipal authorities regarding permit requirements. Regarding building volume, data coverage is partial as there are no recorded SIA 416 standard measurements for the 280 houses identified, which complicates the estimation of heating or insulation project scales. Since there is no median renovation year provided, you lack historical context on recent updates. Homeowners should conduct a thorough site assessment to determine the true condition of their property and plan necessary renovations based on specific structural needs.

23

buildings flagged as protected

status known for 29 of 1'065 buildings; check with the municipality

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

Renovating in Rorschach: what to know

Planning works in Rorschach, 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 Rorschach