Estimate renovation costs in Rapperswil-Jona

Local housing stock

In Rapperswil-Jona, the federal building register lists 3'786 residential buildings and 14'034 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

53 %built before 1980

54 %heated by oil or gas

3.8 %electric hot water

3.9 %with declared solar thermal

Age of residential buildings

53 % built before 1980

Before 19199 %
1919–19459 %
1946–196011 %
1961–19709 %
1971–198015 %
1981–199016 %
1991–200013 %
2001–201010 %
Since 20119 %

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

Main heating energy

42 % · Heat pump

Heat pump42 %
Gas41 %
Heating oil13 %
Electricity2 %
Wood2 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	41 %	38.1 %
Heating oil	13 %	11.6 %
District heating	0 %	1.4 %
Heat pump	42 %	39.4 %
Electricity	2 %	3.8 %
Wood	2 %	1.4 %
Solar thermal	0 %	3.9 %

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)54.8 %
Heat pump42 %
Central electric heating1.5 %
Condensing boiler1 %
Heat exchanger (district)0.5 %

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

Houses or apartment buildings?

Single-family houses54.9 %
Two-dwelling houses8.7 %
Apartment buildings (3+)36.4 %

11 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 3
median footprint: 139 m²
median dwelling area: 97 m²

Dwellings by number of rooms

4.1 %1 rm

11.6 %2 rm

25.6 %3 rm

34.2 %4 rm

24.5 %5+ rm

Dwellings per building

1 dwelling54.9 %
2 to 418.5 %
5 to 917.4 %
10 to 197.5 %
20 or more1.7 %

Renovations, heritage and volumes

For homeowners planning renovations in Rapperswil-Jona, official RegBL figures provide essential planning guidance. Regarding heritage protection, 78 buildings are identified as protected out of 403 known cases, making early coordination with municipal authorities regarding permits vital. The median building volume of 590 cubic meters, based on the SIA 416 standard, helps estimate the scale required for heating or insulation upgrades. Please note that data coverage is partial; only 3 buildings are measured under the SIA 416 standard, and there is no recorded information regarding renovation years for the 3786 total buildings registered in the municipality.

buildings flagged as protected

status known for 403 of 3'786 buildings; check with the municipality

590 m³

median house volume (SIA 416)

measured for 3 of 2'079 houses

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

Housing stock and building age

Rapperswil-Jona consists of 3786 registered buildings. Although specific data on renovation years is unavailable, the stock is diverse, with a prevalence of single-family homes.

A median building volume of 590 cubic meters, based on the SIA 416 standard, provides a reference for your planning. Heritage protection is a significant local consideration: of 403 known buildings, 78 are protected.

It is essential to check if your property is subject to architectural restrictions early on, as these regulations strictly define what types of renovations are permitted for protected structures.

Heating and energy

The energy landscape in Rapperswil-Jona is shifting toward sustainable solutions. Currently, 42 buildings use heat pumps, which is equal to the number of gas-powered systems, while oil heating remains in use.

Hot water production also relies heavily on heat pumps and gas. When upgrading your heating system, prioritize renewable energy technologies to prepare for future cantonal and municipal standards.

Moving to more efficient systems not only reduces your energy costs but also enhances your property's value over time. Proper insulation is recommended to maximize the efficiency of new heat pump systems.

Permits and regulations

Regulations from the canton of St. Gallen complement local municipal rules, especially regarding energy efficiency standards for renovated buildings.

A complete permit application, including necessary plans and proof of compliance with energy standards, is vital for an efficient approval process. Always plan for the official review period, especially if your property is listed as protected.

Priorities for homeowners

Prioritize insulation of the thermal envelope to minimize energy needs before replacing your heating system. In Rapperswil-Jona, improving roof, wall, and window insulation is often the most cost-effective step.

If you live in an older building, always inspect the general structural integrity first. Homeowners should also focus on optimizing domestic hot water production, which accounts for a significant portion of energy consumption.

A well-considered, step-by-step plan ensures your renovation is successful and complies with current energy standards, ultimately protecting your long-term investment.

Using the estimator

The RenoIndex estimator allows you to quickly evaluate renovation costs for your property in Rapperswil-Jona. By using local data on building volume and type, you receive estimates based on Swiss standards.

Input your actual measurements, preferably using the SIA 416 standard, for increased accuracy.

Whether you are planning to replace a boiler or insulate your facade, this tool helps you structure your budget and compare different materials and technical options.

Use these estimates as a solid starting point for your planning and future discussions with local contractors.

Local data in detail

Choose your works in Rapperswil-Jona

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

Frequently asked questions

How do I know if my building is protected?

In Rapperswil-Jona, 78 buildings are officially protected. You can consult the municipal inventory or contact the local planning department directly. Prior verification is crucial, as any modifications to these properties require a special permit to preserve their historical value.

Which measurement standard should I use for my calculations?

The SIA 416 standard is the Swiss reference for measuring building volume. Although few buildings in Rapperswil-Jona are precisely measured according to this standard, it is recommended to use it for establishing reliable cost estimates within the RenoIndex tool.

Are heat pumps common here?

Yes, heat pumps are well-established here. With 42 buildings equipped, they are on par with gas systems. It is a solution recommended by local authorities for renovations to help meet cantonal and municipal energy goals.

Do I need a permit to replace my windows?

Generally, major work on the exterior envelope, such as replacing windows, requires a permit, especially if the building is protected or located in a historic zone. Always contact the local planning department before starting any work.

What is the best order for renovations?

The golden rule is to improve thermal insulation first (roof, walls, windows). Once heating needs are reduced, replacing your heating system with a renewable technology will be more efficient and cost-effective in the long run.