Dorfstrasse 32, Freienstein Rental property with over 50% rental potential
Multi-family house with 4 residential unitsSome properties stand out immediately. This one doesn't, and that's exactly the opportunity.The multi-family house at Dorfstrasse 32 has been standing in the charming village center of Freienstein since 1996. Well-maintained like the first day. Four apartments, 455 m², 8 underground parking spaces. The tenants have been living there for years, the building technology has been continuously renewed, heat pump, floors, kitchens, intercom system.What's missing are market-rented rents.The current net rental income is CHF 83,763 per year. The market potential, based on Wüest Partner data, is CHF 127,265. No theoretical value: the large apartments are currently significantly under market, with clear room for a gradual adjustment. (Over 50% increase)*The four units*- 4.5-room apartment on the ground floor, 121 m², own laundry room- 5.5-room apartment on the 1st floor, 134 m², balcony- 3.5-room maisonette on the top floor, 95 m², balcony- 3.5-room maisonette on the top floor, 105 m²*Key figures*- Plot: approx. 715 m² | Year of construction: 1996 | Building zone: core zone K- Market value: CHF 2,800,000- Generous apartment mix on 455 m² of living space- Takeover: possible immediatelyAnd there's a silent trump card: the four apartments could be converted into condominiums without much effort, with a market value of the individual units of CHF 3,413,000 compared to a market value of CHF 2,800,000.Quiet 30 km/h zone, bus stop 1 minute's walk, quick connection to Bülach, Winterthur, and Zurich. Attractive tax rate.Complete documents on request: *Kristian Dobro | 043 531 31 11 | verkauf@immomenu.ch*Features: • Balcony • Garden • Garage
Your new home with plenty of space!
Here is not just a property - but a place where life is created. This charming house combines space, flexibility and a real home feeling. With two bright 3.5-room apartments, it offers the ideal solution for families, multi-generational living or living with additional income.The apartment on the 1st floor was comprehensively renovated about six years ago and today convinces with a well-kept, modern living feeling. Bright rooms and a pleasant atmosphere create a home where you can immediately feel at home.Investments have also been made technically: the boiler and sanitary pipes were recently renewed - a clear advantage for worry-free living in the coming years.The attic also offers additional potential: here, a third residential unit can be realized with manageable effort - perfect for growing families or as an attractive extension of the return.Around the house, what has become rare today unfolds: real space. A generous garden area surrounds the property and creates space for children, leisure and relaxed hours outdoors.Highlights of this property from Immobilien Solution at a glance: • Two bright 3.5-room apartments • Wood-burning stove for warmth + night storage heaters • 2 bathrooms + 2 separate toilets • Apartment on the 1st floor completely renovated about 6 years ago • Attic with potential for third residential unit • Large garden area around the house • Plenty of space for children, leisure and relaxation • Large basement compartments with plenty of storage space • Spacious garage with 2 parking spaces • 3 additional outdoor parking spaces • Flexible use: own use, rental or combination A home that thinks ahead. For families who need space, for generations who want to live together - or for buyers who want to invest today and profit tomorrow.Sign up today for a non-binding viewing appointment
Residential and commercial buildings with approved conversion to more living space
Location / InfrastructureThe residential and commercial buildings Allmendzentrum 1 and 3 are located directly next to the Töss in the municipality of Rorbas-Freienstein. The bus stop "Freienstein - Alte Brücke" is right in front of the door. By bus, you can reach both Embrach train station and Zurich Airport. For daily needs, shopping can be done conveniently on foot in the nearby Volg.Rental offer & object conditionThe properties, built in 1993, currently have:8 rental apartments:1 x 1.5-room apartment1 x 2.5-room apartment2 x 3.5-room apartments4 x 4.5-room apartments3 commercial spaces:2 x shop1 x commercial room2 x storage30 x outdoor parking spaces19 x underground parking spaces For the vacant commercial spaces, there is an approved project that allows for conversion to more living space. We would be happy to provide you with more information about the project and its potential personally.Building rightsThe property was created under a building rights contract. There is a building rights contract with the political municipality of Rorbas, which was concluded until September 26, 2091.Building rights rentThe building rights rent is 6% and currently amounts to CHF 60'697.60 per year.Sales conditionsThe transfer of ownership takes place by agreement. The land registry fees and transfer tax for this transaction are shared equally by the buyer and seller.For further information or a viewing of the property, we look forward to your contact: 052 635 10 10.
Your Real Estate Investment: Rental Apartments/Practice Rooms in the Village Center of Rafz
On behalf of our client, we are selling the apartments (including dental practice rooms) above the former post office in the village center of Rafz.The municipality of Rafz is the largest political municipality in the so-called Rafzerfeld. Despite strong growth, the village has preserved its charming, rural character with its historic village center and beautiful Riegel houses.Today, 4,800 people live in Rafz.Due to good traffic connections to the centers, the population has grown by almost 50 percent in the last 20 years. The municipality offers active commerce and local gastronomy, as well as various shopping opportunities for daily needs.There are excellent train and road connections to Bülach, Winterthur, Schaffhausen, as well as to the airport and the city of Zurich. As a unified municipality, Rafz combines politics and school. You will find the kindergarten, primary school, and upper school Schalmenacker in the municipality of Rafz.All rooms are rented and various secondary objects such as garages and parking spaces also belong to the property. The house is organized in condominium ownership. However, the ground floor is a separate unit and is owned by the Swiss Post.Procedure:- Dispatch of confidentiality agreement within 2-3 days after contact- Dispatch of documentation (including tenant list, land register extract, etc.) by June 16, 2026- Further procedure according to documentationWe look forward to your contact.
High-yield historic rental property with development potential
This striking residential and commercial property in the center of Andelfingen combines historic charm, stable rental income, and diverse development and expansion potential. The attractive overall property consists of a characteristic residential and commercial building with rented office and residential spaces, as well as a single-family house attached on one side with additional potential. The commercial part is rented long-term to the Swiss Mobiliar insurance company and includes several office spaces, break rooms, and archive and IT rooms. The offer is complemented by several rented apartments, garages, and spacious basement, attic, and secondary areas with interesting development reserves. The overall property also includes a charming, single-family house attached on one side, which convinces with its cozy atmosphere and diverse usage possibilities. The house is currently rented and offers potential for renovations and modernization measures, as well as interesting perspectives for future overall development together with the main property. The characteristic row property shapes the townscape of Andelfingen in a special way and combines historic village core charm with long-term value retention. Thanks to the connection to the district heating network of the Andelfingen municipality and the diverse usage and expansion possibilities, this is a rare opportunity for investors or developers with a long-term focus.
Historic Guesthouse with Exciting Residential Development Potential in the Center of Bachenbülach
H&B Real Estate AG is pleased to offer you, in an exclusive mandate, a fully rented guesthouse with development potential in Bachenbülach. If you are interested, we ask you to register on the sales website (https://investor.hbre.ch/verkauf-historischer-gasthof-im-zentrum-von-bachenbuelach) to receive the detailed sales documents.The property impresses with the following features:Central locationThe guesthouse, built in 1912, is located in the center of Bachenbülach and enjoys high visibility due to its location on the main street.Income stabilityCurrently, the entire property is rented to a restaurateur who operates the Pizzeria San Marco on the ground floor. This ensures stable medium-term rental income.Residential development potentialSince the barn extension is currently largely unused, a conversion to residential space is possible in the medium term. Comparable objects in the immediate vicinity show that the potential can be realized in agreement with the heritage conservation authorities.
Multi-family house with horse keeping and agricultural land
This charming multi-family house with three residential units and an additional apartment in the separate rear house offers space for a variety of living models, whether as a multi-generational house or for living and working under one roof.Each unit impresses with plenty of natural light, an optimal room layout, and access to outdoor areas such as balconies, terraces, or garden seating areas.Originally designed for horse keeping, the house offers spacious areas with versatile potential, surrounded by an extensive agricultural zone that provides animals with plenty of space and a safe, natural environment.The property is located in a quiet, green residential area in Weiach, just a few minutes' walk from the Rhine. Ideal for nature lovers, families, and anyone who wants to combine the rural with good accessibility. Here, no wishes are left unfulfilled. Take advantage and convince yourself! This PREMIUM HOMES offer includes: • Quiet living situation with a view of the greenery and plenty of space • Proximity to nature: ideal for hiking or cycling • Low tax burden • Good traffic connection (car/public transport) • Historic flair and modern infrastructure • 3 × residential units in the main house • 1 × fully equipped riding room • Partially insulated facade • 95% new windows 2019 • PV system 2022 • New power distributor 2022 • 1 × double garage with gate • 1 × open double garage • Several parking spaces Interested? We would be happy to take you on a non-binding tour! Do you want to sell your house or apartment worry-free? We will tell you the current market value of your property, discreetly and non-bindingly! Are you interested in a first non-binding exchange of ideas? Don't hesitate and contact us. We look forward to hearing from you.
An investment with perspective
Central residential and commercial property with 4 apartments (approx. 255 m² living space), small retail area (approx. 39 m²) and garage and ancillary areas on 529 m² of land in the residential zone WG 3.0. Interesting object for investors, existing owners or developers with a view to ongoing returns, repositioning and building law development potential in the immediate vicinity of Pfungen train station, an up-and-coming and attractive village on the outskirts of Winterthur and thus in the Zurich economic area with good quality of life and transport links.We would be happy to send you the detailed sales documentation with all relevant information and details upon request. Additionally, the virtual tour is already available for a first impression of the property via the link below.S.E.&.O. Errors excepted. We strive to provide accurate information, but cannot assume any warranty.
LOTS OF HISTORY, SPACE AND POTENTIAL
This unique property - a jewel from the 18th century - combines historic charm with modern living quality. Each room has an unmistakable atmosphere, characterized by characteristic details such as wooden beams and coffered ceilings. On 336 m² living space, distributed over 14.5 rooms, open up extraordinary possibilities for family, multi-generational, shared apartments or the ideal combination of living and working.The timber frame construction with exposed beams ensures a warm, homely feeling of living.With little effort the property can also be converted into a two-family or intergenerational home.A private, well-kept garden with mature trees and fruit trees offers peace and relaxation. The ensemble is complemented by a second part of the house (corpus), which was built around 1950 and combines the charm of past decades with diverse uses .For parking there is a single garage and two outdoor parking spaces available.A house full of history and perspectives - ideal for everyone who appreciates space, individuality and a special ambience This unique property - a jewel from the 18th century - combines historic charm with modern living quality. Each room has an unmistakable atmosphere, characterized by characteristic details such as wooden beams and coffered ceilings. On 336 m² living space, distributed over 14.5 rooms, open up extraordinary possibilities for family, multi-generational, shared apartments or the ideal combination of living and working.The timber frame construction with exposed beams ensures a warm, homely feeling of living.With little effort the property can also be converted into a two-family or intergenerational home.A private, well-kept garden with mature trees and fruit trees offers peace and relaxation. The ensemble is complemented by a second part of the house (corpus), which was built around 1950 and combines the charm of past decades with diverse uses .For parking there is a single garage and two outdoor parking spaces available.A house full of history and perspectives - ideal for everyone who appreciates space, individuality and a special ambience .This unique property - a jewel from the 18th century - combines historic charm with modern living quality. Each room has an unmistakable atmosphere, characterized by characteristic details such as wooden beams and coffered ceilings. On 336 m² of living space, distributed over 14.5 rooms, open up extraordinary possibilities for family, multi-generational, residential communities or the ideal combination of living and working.The timber frame construction with exposed beams ensures a warm, homely feeling of living.With little effort the property can also be converted into a two-family or intergenerational home.A private, well-kept garden with mature trees and fruit trees offers peace and relaxation. The ensemble is complemented by a second part of the house (corpus), which was built around 1950 and combines the charm of past decades with diverse uses .From the balcony of the convertible loft you enjoy a phenomenal view - another highlight of this exceptional property.For parking there is a single garage and two outdoor parking spaces at your disposal.A house full of history and perspectives - ideal for everyone who appreciates space, individuality and a special ambience .This unique property - a jewel from the 18th century - combines historic charm with modern living quality. Each room has an unmistakable atmosphere, characterized by characteristic details such as wooden beams and coffered ceilings. On 336 m² of living space, distributed over 14.5 rooms, open up extraordinary possibilities for family, multi-generational, residential communities or the ideal combination of living and working.The timber frame construction with exposed beams ensures a warm, homely feeling of living.With little effort the property can also be converted into a two-family or intergenerational home.A private, well-kept garden with mature trees and fruit trees offers peace and relaxation. The ensemble is complemented by a second part of the house (corpus), which was built around 1950 and combines the charm of past decades with diverse uses .For parking there is a single garage and two outdoor parking spaces available.A house full of history and perspectives - ideal for everyone who appreciates space, individuality and a special ambience .Interested? Further information, pictures and a virtual tour as well as viewing options can be found at: propertyowner.ch/en/real-estate/25-12371 Free real-estate-value determination. Exclusive listings first look. As a member of Propertyowner Association Switzerland you benefit from a free property valuation and get access to exclusive listings on propertyowner.ch, before these are published publicly.
Restaurant "Gasthof Sternen" and Multi-Family House Ensemble
The unique real estate ensemble of Restaurant "Gasthof Sternen" and Multi-Family House is an object with history, potential, and character. The property belongs to the core zone of Flaach.In the lower village of Flaach, located on the thoroughfare to Rafz, is the traditional Gasthof Sternen, a restaurant known far beyond the region for its inviting charm and loyal regular customers. The spacious gastronomy object offers optimal conditions for a successful continuation or a new gastronomic vision, thanks to its well-equipped kitchen, cozy dining rooms, and beautiful outdoor area.The offer is complemented by a multi-family house directly adjacent to the inn, with several residential units. It was converted from a barn into its current state in 2013 and is ideal for personal use, for employees, or as an attractive rental property. Whether as a comprehensive project for restaurateurs, investors, or creative entrepreneurs, this property convinces with its diverse usage possibilities, well-maintained condition, and good location.Multi-Family House Objects: • 2.5-room apartment 1st floor West • 2.5-room apartment 1st floor East • 2.5-room apartment 2nd floor South • 2.5-room apartment 2nd floor East • 2.5-room apartment attic South The restaurant and the five rooms above it are currently not rented.The building is considered a communal protected object. The municipality of Flaach has worked out a draft of a protection agreement with the property owner, which shows the possible building options. Not affected by this protection agreement is the separate former bowling alley building and the south-side extension. Based on this, Aluba AG, Architecture and Construction Management, Volken, has worked out a project study, which is included in the documentation on pages 35-40.
Gian Griesser
Junior Immobilien-Bewirtschafter
Historic Opportunity: Two Units, Studio and Development Potential
This unique, historic property in the heart of Embrach offers a rare opportunity for investors, creatives, or owner-occupiers. The building currently houses two separately rentable apartments (4.5 rooms and 6.5 rooms) as well as a separable studio, ideal for artistic or commercial purposes.In concrete terms, the following usage options are open to the new owner:- Immediate rental of the three units- Owner-occupation of an apartment and/or the studio- Renovation/re-design into a multi-generation house or residential/work object- Large expansion and development potential (especially attic)The large garden behind the house also offers peace and plenty of space – a true oasis in the heart of the village. This property is thus simply more than just a building – it's a piece of village history with a future. This ImmoSky offer includes the following *additional benefits*:+ Central location+ Many expansion and usage options+ Popular residential community+ 3 parking spaces+ Public transport and shopping opportunities within walking distanceWould you like to know more? Then don't hesitate and secure your personal viewing appointment. We look forward to your call.(The sales dossier will be sent to you within a maximum of 24 hours. Please also check your spam folder.)
Space for family, animals, and visions! Versatile multi-family house in Weiach
Top opportunity Welcome to Weiach, an idyllically located town in the Zurich Unterland, near the Rhine. This exceptional property offers rural living quality with thoughtful infrastructure and versatile usage possibilities. It is ideal for multi-generational living and for animal husbandry with increased space requirements.In a quiet location, this charming and versatile property awaits you on approximately 8,788 m² of land in the agricultural zone.The well-maintained multi-family house includes three separate residential units with the following layout:Basement: 3-room apartment, approx. 62 m² Ground floor: 4½-room apartment, approx. 107 m² Upper floor: 5½-room apartment, approx. 108 m²This Nova Casa offer includes: • Many individualization possibilities • Stable building (ground floor approx. 78.5 m², stall area 70 m², hayloft approx. 60 m²), optimal for horse or small animal husbandry • Currently designed for 4 horse stalls • Remise with approx. 160 m² of usable space on two floors Shelter: approx. 52 m² • Photovoltaic system: 23.4 kWp (2022) • Hot water: 800-liter storage tank (solar-powered) • 1x double garage (closed) • 1 x open double garage • 1x open parking space • Various outdoor parking spaces • Triple-glazed wooden windows (2019) Curious? We cordially invite you to a non-binding viewing!Do you want to sell your property uncomplicated and worry-free? We determine the current market value of your property for you and show you your options, discreetly and non-bindingly! Don't hesitate to contact us for a first conversation.We look forward to you.
Living in the Zürcher Unterland! "Plenty of space for humans and animals" in Weiach
Top opportunityWelcome to Weiach, an idyllically located town in the Zürcher Unterland, near the Rhine. This exceptional property offers rural living quality with well-thought-out infrastructure and versatile usage possibilities. It is ideal for multi-generational living and for animal husbandry with increased space requirements.In a quiet location, this charming and versatile property awaits you on approximately 8,788 m² of land in the agricultural zone.The well-maintained multi-family house comprises three separate residential units with the following layout:Basement: 3-room apartment, approx. 62 m²Ground floor: 4.5-room apartment, approx. 107 m²Upper floor: 5.5-room apartment, approx. 108 m²This Nova Casa offer includes: • Many individualization possibilities • Barn (ground floor approx. 78.5 m², stable area 70 m², hayloft approx. 60 m²), optimal for horse or small animal husbandry • Currently designed for 4 horse stalls • Remise with approx. 160 m² of usable space on two floorsShelter: approx. 52 m² • Photovoltaic system: 23.4 kWp (2022) • Hot water: 800-liter storage tank (solar-powered) • 1x double garage (closed) • 1x open double garage • 1x open parking space • Various outdoor parking spaces • Triple-glazed wooden windows (2019) Curious? We cordially invite you to a non-binding viewing!Do you want to sell your property uncomplicatedly and worry-free? We determine the current market value of your property for you and show you your options, discreetly and non-bindingly! Don't hesitate to contact us for a first conversation.We look forward to hearing from you.
3 ATTRACTIVE OLD TOWN APARTMENTS PLUS OUTBUILDING
This attractive unit includes three apartments within a multi-family house in the old town of Bülach, as well as an additional outbuilding or garage and two outdoor parking spaces. The building was newly constructed in 1970 and comprehensively renovated in 1993. Particularly noteworthy is the spacious 7.5-room maisonette apartment with a winter garden and two balconies, supplemented by a studio and a 3.5-room maisonette apartment with a balcony. Despite its central location with a café and restaurant directly in front of the door, the balconies facing backwards offer a pleasant tranquility.Your advantages at a glance: • Three apartments (1, 3.5 and 7.5 rooms) • Spacious main apartment with winter garden and two balconies • Balcony areas in a quiet, rear-facing direction • Outbuilding or garage available • Two outdoor parking spaces • Year of construction 1970, comprehensively renovated in 1993 • Central location in the old town of Bülach • Gastronomy and shopping facilities directly in front of the door Are you interested? We look forward to your contact!
Dr. Philippe Meier
Gründer / Immobilienexperte
spacious - unique - full of potential
We are selling a well-maintained residential house with a small surrounding area and a commercial part (workshop).
Residential and commercial property in a sought-after location
This residential and commercial building, completed in 2014, presents itself in a very well-maintained condition and combines two spacious apartments, an attractive commercial space on the ground floor, and a separate attic room. The clear structure of the building makes it a sought-after property for investors seeking stable returns and a secure investment.The apartments on the upper and top floors convince with bright rooms, modern amenities, and a well-thought-out floor plan, where the open living, dining, and kitchen area forms the center. The attic room creates additional flexible space and rounds off the overall offer.The ground floor with café, bar, kitchen, and WC is ideal for commercial operators who want to benefit from the well-frequented location in the city of Winterthur. The diversity of uses ensures an attractive return of around 4.5% and long-term stable rental income.Technically, the property is equipped with modern amenities: electric shutters, Minergie certificate, gas heating, and three practical outdoor parking spaces offer comfort and efficiency. The sunny, sought-after location underlines the value stability of this property.The following highlights are offered by this property: • Residential and commercial building in the city of Winterthur • Year of construction 2014, very well-maintained condition • Attractive return of around 4.5% • Two apartments of 60.10m² each • Separate attic room of 20.00m² • Commercial space on the ground floor of 73.20m² • Minergie certificate • Electric shutters • Gas heating • 3 outdoor parking spaces • Sunny and very sought-after location We invite you to discover this unique property in person. Arrange a viewing appointment today and let yourself be inspired by the possibilities!
Daniel Karimi
Teamleiter
Multi-generation house with heart and mind
In a quiet and family-friendly location, just a few steps from schools, this spacious property with approximately 280 m² of living space on three floors awaits you. The well-thought-out room concept offers plenty of space for cross-generational living and combines family life with pleasant privacy.A special highlight is the integrated 2-room apartment in the attic with a modern kitchen. Whether for grandparents, adult children, guests, or as a home office, this offers a variety of uses. The bright living area with a fireplace also creates a warm and inviting atmosphere for well-being.The spacious garden with a sauna and bike shed invites you to relax and linger. This attractive offer is complemented by four outdoor parking spaces and a garage space. A pearl of a home full of comfort, flexibility, and quality of life for the whole family. Here, no wishes are left unfulfilled. Take advantage and convince yourself! This PREMIUM HOMES offer includes: • Child-friendly, school-near location • Cross-generational living • Quiet living environment • Spacious room layout • Integrated apartment • Modern, spacious kitchen • Bathroom with tub and shower • Triple-glazed windows • Electric shutters • Cozy fireplace • Garden with sauna • Bike and tool shed • Living area approx. 280 m² • Plot with 676 m² • 4 outdoor parking spaces • 1 garage space Interested? We would be happy to take you on a non-binding tour! Do you want to sell your house or apartment worry-free? We will tell you the current market value of your property, discreetly and non-bindingly! Are you interested in a first non-binding exchange of ideas? Don't hesitate and contact us. We look forward to you.
Yasin Cekic
Immobilienvermittler
Two residential houses and building land reserve
This exceptional real estate offer in Bachs includes two semi-detached houses on a spacious plot of 3324 m² (of which approximately 1622 m² are in the core zone) in a quiet, rural environment. The property combines historic charm with generous living space and offers versatile usage possibilities, ideal for multi-generational living, living and working, or a combination of self-use and rental. House No. 6, half-timbered house Charming half-timbered house in authentic country house style Separate kitchen with cozy dining area Living room with tile stove and reading/TV corner 4 bedrooms on the upper floor Bathroom with bathtub and shower Guest toilet Large workshop Garage and separate garage House No. 8, residential house (built in 1988) Generous room layout with partially elevated rooms Kitchen with V-Zug Combi oven/steamer, 5-plate ceramic cooktop, and dishwasher Living, dining, and kitchen area with Solnhofen natural stone Underfloor heating throughout the house 4 bedrooms 2 bathrooms (1x shower, 1x whirlpool bathtub) Guest toilet Spacious party room with chimney Craft room and attic Garage, single garage, and several outdoor parking spaces With approximately 439 m² of living space, numerous secondary rooms, and a plot with a building land and agricultural share, this property offers a rare overall package of space, potential, and quality of life. Particularly noteworthy are the versatile usage possibilities of the generous secondary areas: A large garage or garage is also ideal for motorhomes, trucks, or vehicles with increased space requirements. Thanks to the extensive plot and agricultural land, animal husbandry would also be conceivable, depending on the usage concept and official approval. Or the building land share offers further development potential: A new building of a smaller multi-family house should even be possible on the plot. We would be happy to show you this special property during a personal viewing.Further information and pictures can be found on our website under the following link: https://www.uta.ch/uta-immobilien/kaufen/kaufobjekte/objekt/zwei-wohnhaeuser-bauland-und-garage-fuer-wohnmobil-8164-bachs-3713/
Sale: Multi-family house in tax-friendly Winkel ZH
H&B Real Estate AG is pleased to offer you, in exclusive mandate, a fully rented multi-family house in the tax-friendly Winkel ZH for sale. • Stable cash flow from full rental: 5 apartments, 10 parking spaces, 1 separate room, 2 storage rooms • Excellent location: Central location within Winkel, well connected and surrounded by nature reserve and agricultural zone • Tax-friendly residential community: Winkel has a very low tax rate of 76% (average tax rate in the canton of Zurich: 106%) If you are interested in a long-term investment with high return stability, please register on our sales website: https://investor.hbre.ch/verkauf-mfh-winkel-zhWe will be happy to provide you with further information on this purchase opportunity afterwards.