CHIPPERFIELD RESIDENCES - Top 7.3

THE PROJECT

In the heart of Hietzing, on a gently sloping plot between Schönbrunn and the Lainzer Tiergarten, stand three city villas designed by Sir David Chipperfield as his first and only residential project in Vienna. The Pritzker Prize winner has worked here with the elements that define the site – the slope, the mature trees and the light. Three detached buildings rather than a perimeter block development, each with its own staircase and lift, interspersed with intensively landscaped open spaces.

The curtain wall façade consists of sandblasted precast architectural concrete elements with a sandstone finish; the continuous cornices between the storeys define the horizontal lines whilst also providing shade for the deep loggias and terraces. At ground floor level, the material changes to Rauris natural stone. Behind the floor-to-ceiling aluminium sliding panels from swiss fine line, this understated aesthetic continues: exposed concrete ceilings, white mineral paint, oak parquet, and porcelain stoneware in a stone and concrete finish. Materials that do not vie for attention, but instead give way to the view of the greenery.

A total of 20 owner-occupied flats have been created, with usable living space ranging from around 39 to 330 m² – from compact designer flats and Garden Residences to the unique penthouses on the top floor. Each unit has at least one private outdoor area.

The building services are particularly noteworthy. The entire complex is heated, cooled and supplied with hot water via a brine/water heat pump, fed by 24 deep boreholes drilled 100 metres into the site. Heat is distributed across the entire floor area via underfloor heating. Cooling is provided via concrete core activation: water-filled pipes run through the exposed concrete ceilings, regulating the room temperature across the entire surface – more comfortable and quieter than any split-system air-conditioning unit, and operating largely passively in summer, drawing directly from the deep borehole. In addition, there is a controlled domestic ventilation system with heat and humidity recovery; the supply air is fed in invisibly via aluminium floor grilles.

Each flat is equipped with a KNX bus system and a Loxone smart home control system: temperature, lighting, shading and switchable sockets can be controlled via a control panel in the flat or via an app. Beneath the complex lies a continuous underground car park with a total charging capacity of 88 kW; eight parking spaces are equipped with a load management system for electric vehicle charging.

HIGHLIGHTS

• Architecture: David Chipperfield Architects
• Sustainable energy concept: Brine/water heat pump comprising 24 ground probes, each 100 m deep, for heating, cooling and hot water
• Cooling via concrete core activation (ceiling cooling) | Exposed concrete ceilings on the underside
• Controlled domestic ventilation with heat and humidity recovery
• Energy-efficient underfloor heating | supplied by the brine/water heat pump
• Highly insulated aluminium windows with triple glazing – floor-to-ceiling sliding, fixed and hinged elements | external sun protection
• KNX bus system per residential unit | Loxone smart home control system with control panel: temperature (heating and cooling), lighting, automated shading and switchable sockets controllable via app
• Exclusive oak parquet flooring
• Bathrooms with porcelain stoneware | tiled shower area | floor-level walk-in shower
• Floors on balconies, terraces and roof terraces in Rauris natural stone
• Apartment entrance doors meeting resistance class 3 | Pre-wired for an alarm system in all flats
• Letter and parcel system with digital noticeboard and accompanying app (door calls from anywhere, parcel status on your smartphone, property management information)
• Spacious underground car park running the full length of the building
• Extensively landscaped outdoor areas | Flat roofs with intensive greening as inverted roofs

SERVICE CHARGES

For the sake of clarity, we note that, unless otherwise stated in the offer, a commission is payable upon successful completion of the sale, in accordance with the rates set out in the Estate Agents’ Regulations (BGBI. 262 and 297/1996 – that is, 3 per cent of the purchase price plus 20 per cent VAT. This obligation to pay commission also applies if you pass on the information provided to you to third parties. There is a close economic relationship with the seller. We would like to point out that we are acting as dual agents. The drafting of the contract and escrow settlement are handled by the law firm of Dr Rumpf, Freyung 6, 1010 Vienna. The costs amount to 1.5% of the purchase price plus 20% VAT, as well as out-of-pocket expenses and certification fees.

Top 7.3

Top 7.3 centres around the terrace. 19.33 m² – a third of the living space – is spent outdoors here, facing the peaceful garden side, at treetop level. The 25.02 m² kitchen-diner opens out onto it across its full width via floor-to-ceiling sliding panels. When slid open, the boundary between indoors and outdoors disappears, with the terrace’s natural stone forming a seamless continuation of the oak parquet flooring.

The second distinctive feature is the floor plan. For a two-room flat, it is remarkably spacious: a 9.42 m² entrance hall with space for a coat rack and storage, a 13.89 m² bedroom serving as a private retreat, a 7.29 m² bathroom with a bath and a floor-level shower – and a separate guest WC. You rarely find this in a flat of this size.

The result is a flat that is compact but never feels that way. For anyone who wants to live in the 13th district without having to manage 150 m² – and who prefers to eat outside rather than indoors in summer.

Please note that there is a close family or business relationship between the agent and the third party on whose behalf the property is being marketed.

The agent is acting as a dual agent.