398 m
Altitude
12.1 °C
Mean temperature
33
Frost days
1'211 kWh/kWc
Estimated solar yield
Local housing stock
In Nyon, the federal building register lists 1'877 residential buildings and 12'360 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
52 % built before 1980
- Before 191910 %
- 1919–194513 %
- 1946–196011 %
- 1961–197010 %
- 1971–19808 %
- 1981–199017 %
- 1991–20009 %
- 2001–201010 %
- Since 201112 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
56 % · Gas
- Gas56 %
- Heating oil33 %
- Heat pump5 %
- Electricity3 %
- Wood2 %
- District heating1 %
This distribution describes recorded buildings, not your system's consumption or efficiency.
Heating and hot water: which energies?
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 56 % | 50.1 % |
| Heating oil | 33 % | 25.3 % |
| District heating | 1 % | 1 % |
| Heat pump | 5 % | 4.3 % |
| Electricity | 3 % | 6.7 % |
| Wood | 2 % | 1.2 % |
| Solar thermal | 0 % | 6.9 % |
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)57.2 %
- Condensing boiler14.4 %
- Standard boiler13.4 %
- Heat pump11.1 %
- Central electric heating2.3 %
- Heat exchanger (district)0.9 %
A standard non-condensing boiler is usually older and less efficient.
Houses or apartment buildings?
- Single-family houses37.9 %
- Two-dwelling houses6.6 %
- Apartment buildings (3+)49.4 %
- Other6.1 %
17.5 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 4
- median footprint
- 239 m²
- median dwelling area
- 80 m²
Dwellings by number of rooms
Dwellings per building
- 1 dwelling41.1 %
- 2 to 417.2 %
- 5 to 919.1 %
- 10 to 1916.3 %
- 20 or more6.3 %
Renovations, heritage and volumes
For your renovation projects in Nyon, official RegBL data provides essential guidance. With 32 buildings listed as protected out of 137 known structures, you should contact the municipality early to address heritage permits and specific building constraints. Regarding building volume, data coverage is partial with 140 measured buildings out of 711. The median volume of 995 m3, based on the SIA 416 standard, helps you assess the scale of heating or insulation work required.
Source : Registre fédéral des bâtiments et des logements (RegBL), OFS, 2026. Existing residential buildings; percentages of recorded values.
Local context: Climate and real estate
1 °C.5 °C, heating requirements are real, estimated at 2580 Kj/year. This climatic reality requires special attention to thermal insulation.
The Nyon real estate stock must meet the ambitions of the «Energy City Gold» label obtained by the City in 2024. The «Nyon s’engage» climate plan aims to reduce direct greenhouse gas emissions by 50% by 2030.
For owners, this means that renovation is no longer just a question of comfort, but a necessity aligned with the municipality's energy goals.
Energy renovation priorities
The absolute priority for owners in Nyon is improving the building's thermal envelope. Insulating facades and roofs is fundamental to sustainably reducing energy consumption.
By limiting heat loss, you not only increase the value of your property but also actively participate in the Confederation's 2050 energy strategy.
Replacing windows is another key measure. When these works are integrated into a comprehensive renovation of the envelope, they are eligible for financial aid via the Buildings Program.
Careful planning makes it possible to coordinate these works to maximize overall thermal efficiency, while benefiting from available cantonal and communal subsidies.
Heating and district heating
Nyon is actively deploying its district heating network (CAD) managed by ThermorésÔ Nyon SA. This network, fueled by wood chips and aiming to integrate geothermal energy from EnergeÔ La Côte, is a major solution for decarbonizing heating.
Nearly 130 buildings will be able to connect along axes such as the route de St-Cergue or Avenue Alfred Cortot.
For buildings that cannot be connected, replacing fossil or electric heating with heat pumps (HP) is encouraged. Cantonal subsidies from the Buildings Program, which can be combined with communal supplements, facilitate this transition.
The procedure for installing a heat pump is simplified in Nyon, although noise nuisance must be scrupulously respected during installation.
Permits and heritage
In the Old Town, protected by ISOS, any modification of the exterior appearance must be requested.
However, the City favors the energy transition. The installation of solar panels or photovoltaic tiles is facilitated, even in sensitive sectors, thanks to simplified procedures.
Photovoltaic tiles, in particular, offer an aesthetic solution adapted to the complex geometries of historic roofs, allowing for the reconciliation of heritage preservation and renewable energy production, subject to a positive opinion for protected buildings.
Financial aid and taxation
For photovoltaics, a communal grant of 300 CHF per kWp is available, capped at 5,000 CHF per installation.
Tax-wise, owners can deduct investments aimed at saving energy. The deduction rate is 100%. If costs exceed net income, the balance can be carried forward to the following two tax periods.
Each year, you have the choice between deducting effective costs or a maintenance lump sum, the latter varying according to the age of the building. These measures significantly reduce the financial burden of renovation works.
Planning and selecting contractors
The success of a renovation in Nyon relies on rigorous planning. Before starting, it is advisable to check if your project requires a building permit, although the simplified procedure applies to the majority of energy projects.
It is crucial to obtain grant confirmations before work begins to ensure eligibility.
The selection of contractors must be based on criteria of reliability and local competence. Favor professionals accustomed to the constraints of Nyon's heritage and current energy standards.
Do not hesitate to ask for several comparative quotes and check references on similar projects.
Good collaboration with local craftsmen, who are aware of municipal requirements, will facilitate the smooth progress of your project and guarantee the technical quality of the finishes.
Local data in detail
Heating and energy
Permits and heritage
ISOS inventory. yes
Protected areas. yes[3]
Tax and renovation
The municipal tax coefficient of Nyon is 61%.[9]
Water quality
Rules of the canton of Vaud
These rules apply across the whole canton, not only in Nyon.
Choose your works in Nyon
- Kitchen renovation cost in Nyon
- Bathroom renovation cost in Nyon
- New flooring cost in Nyon
- Interior painting cost in Nyon
- Window replacement cost in Nyon
- Roof renovation cost in Nyon
- Facade insulation cost in Nyon
- Heat pump installation cost in Nyon
- Solar panels cost in Nyon
- Home solar battery cost in Nyon
- Solar water heating cost in Nyon
- Terrace construction cost in Nyon
- Fence installation cost in Nyon
- Stairwell renovation cost in Nyon
- Elevator installation or upgrade cost in Nyon
Climate data for Nyon
- Altitude
- 398 m[10]
- Heating degree days
- 2'580 Kj/an (20/12 °C)[11]
- Frost days
- 33 jours/an[12]
- Solar irradiation
- 1'376 kWh/m²/an (horizontal)[13]
- Winter design temperature
- -3.5 °C (1er percentile des minimales)[14]
- Mean temperature
- 12.1 °C[15]
- Estimated solar yield
- 1'211 kWh/kWc/an (toit ~30° sud, PR 0.8, estimation)[8]
Nearby municipalities : Lausanne · Montreux · Yverdon-les-Bains · Vevey · Renens · Morges · Pully · Écublens
Frequently asked questions
Can communal subsidies be combined?
Yes, Nyon's communal subsidies are designed to complement cantonal grants from the Buildings Program, allowing you to fund your energy efficiency works more effectively.
Can I install solar panels on a protected building?
Yes, installation is possible. For listed buildings, a specific procedure is required. Photovoltaic tiles often provide an integrated solution accepted by the authorities.
How do I know if my building can connect to the district heating network?
The ThermorésÔ Nyon SA network is being deployed in stages across several sectors of the city. You can check the areas served on the municipality's official platforms.
What are the tax benefits for renovation?
You can deduct 100% of energy investment costs from your taxable income. Any surplus can be carried forward to the following two tax periods.
What is the procedure for a heat pump?
In Nyon, the procedure is simplified. However, it is essential to ensure compliance with noise nuisance standards, particularly for outdoor installations.
What is the water hardness in Nyon?
The water supplied by the Services Industriels de Nyon is moderately hard to hard (between 19.4 and 28.6 °fH), which can influence the choice of your sanitary installations.
Sources
- [1] Le projet en bref - ThermorésÔ Nyon
- [2] Ville de Nyon - Actualités
- [3] Rapport N° 2022/81 - Réponse au postulat de Mme la Conseillère communale Armelle DuPasquier et consorts intitulé « Accélérer – encore – la transition énergétique »
- [4] SI Nyon (sinyon.ch), Trinkwasser.ch, Colibrille.ch
- [5] viageo.ch · estimate
- [6] Règlement sur la déduction des frais relatifs aux immeubles privés (RDFIP)
- [7] État de Vaud — Permis de construire (LATC / RLATC)
- [8] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024) · estimate
- [9] Nyon.ch - Impôts et finances communales
- [10] swisstopo – service d'altitude (MNT)
- [11] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024)
- [12] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024)
- [13] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024)
- [14] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024)
- [15] Open-Meteo Historical Weather API (réanalyse ERA5, moyenne 2015-2024)