urban planning - territorial regulation, composition of spatial design

The Na Knížecí office building is the entrance building to the development area of the newly proposed Smíchov development - Smíchov City. The overall area covered by the comprehensive urban planning study Smíchov City extends south from Za Ženskými domovy Street to the Smíchov railway station track, and is bounded by Nádražní and Radlická Streets from the east and west. The building in question is situated in the north-eastern corner of this area, in the attractive area of the future Na Knížecí Square. From the south, the office building SM1 is connected to block SM2 and together they form one block. From the west side, the building will form the entrance corner to the newly established pedestrian zone with a number of recreational elements and greenery leading to Radlická Street. The building has first-class connections to the public transport system, in the direct vicinity there is an exit from the metro station Anděl (Na Knížecí), bus and tram stops, or the train station Smíchovské nádraží. In the future, it is planned to transform the adjacent area of the bus terminal into Na Knížecí Square and to locate an important municipal building; with this building, the Na Knížecí office will form the main frontage to the newly created square. The building is part of a block of buildings with residential function, the internal facades are oriented to a common courtyard. 

architectural solution - composition of shape solution, material and colour solution

The building is urbanistically integrated into a block of apartment buildings with a traditional plotting of stair houses, i.e. smaller scale houses. The aim is to integrate the office building, i.e. a building with different parameters and scale, into this context in a non-violent way. We have divided the building into 3 masses with different facade concepts so that it gives the impression of 3 smaller buildings and integrates non-aggressively into the context of the surrounding buildings. The individual masses are reflected by the height, material and colour of the facades. The proposed building has 5 above ground, 1 set back and 2 underground floors. Above the sixth floor is a structure covering the process units located on the 6np roof, this structure helps to emphasise the corner into the newly established pedestrian zone. The mass is lower in Station Street so as not to significantly overhang the existing development and grades towards the pedestrian zone. The tallest mass is also set back in the south-west from the adjacent residential property where a residential terrace is created. The profile of Nádražní Street has been significantly widened compared to its original state (by approx. 5.5m), creating space for a wide pavement with a tree line in addition to the traffic functions. Similarly, the street space of Za Ženskými domovy Street has been widened (by approx. 5.5-7.5 m), here the pedestrian road is additionally enriched with a covered loubí, which is oriented towards the future planned Na Knížecí Square. The ground floor of the building is as close as possible to the sloping adjacent sidewalk. The street facade is designed as a ventilated cladding system with a final cladding of 3D glass-cement panels with individually designed paterno used in different directions. The façade is divided into 3 design variants corresponding to the division of the building volume into three masses. The mass in Nádražní Street is contextually lower, grey with a horizontal paterno, on the contrary, the western mass emphasizing the orientation to the pedestrian zone is black with a vertical paterno (black vertical stripes make it slimmer), the middle mass where the main entrance to the building is located is white and the façade combines both directions of the paterno of the glass-cement panels in a sophisticated way. The individuality of the individual masses is emphasised by the different shades of the bronze aluminium window assemblies, the assemblies are designed to the maximum dimensions, in the centre the window is divided by a vertical partition allowing anchoring the interior partition. The window assemblies are complemented by ventilation slots on the sides for individual ventilation of each workplace. The façade of the retail spaces at 1np and partly in the 2np lobby is in contrast with tthe concrete façade is glazed with a fragile membrane of structural frameless glazing, with a strip for the application of tenant advertising at the top. A fading graphic print is applied to the strip of glass adjacent to the ground, contaminating the varied visual smog at floor level of each interior. A revolving carousel door serves as the main entrance to the building, supplemented by an accessible door serving handicapped, bicycle, stroller, moving, etc. The restaurant façade on the west side is designed with window and door storefronts. The courtyard façade is designed in a contact insulation system with a trowel plaster, similar to the external mass, and is finished in different colours according to the different masses of the building. The windows are aluminium tilt and turn windows with a sill equipped with hidden blinds. On the roof above the 5np in the eastern part of the building there will be technology concealed by the structure and incorporated into the roof garden landscaping. Residential terraces are located on the roof of the 6th and 7th npn. A smaller terrace is also located in the south-western part of the building. The terraces offer an exclusive view across the Lesser Side to Prague Castle or Vyšehrad.

overall operational solution, production technology

The ground floor is planned for a restaurant and divisible retail space. On the northern side of the building there is a covered vestibule, through which one can enter the retail space and also the lobby of the administrative part. The latter is located in connection with the main circulation elevator block in the centre of the building. The entrance lobby is generously elevated over 2 floors in part and also connects to the courtyard garden. The entrance to the underground levels is located in Nádražní Street for car and cycle traffic. The ground floor of the building responds to the sloping adjacent terrain with stepped levels of adjacent spaces to provide wheelchair access to all spaces. In 1np, escape staircases from the underground and above-ground floors are integrated into the courtyard. The office floors are designed as a universally usable space with 3 wings with a depth of 19.5 to 21.5 m. The space is designed as a functional 5 tract, with a work area located at the facades, followed by service corridors and in the centre are service areas for vertical communications, technical equipment, toilets, meeting rooms, kitchens, storage and facilities. The office floor can be loaded for individual/group offices or left as open open space. In the centre of the layout is the main lift core containing 4 lifts, a representative staircase and a disabled toilet. A multi-storey lift lobby serves the office areas (typical floor has a GIF of approx 1675m2) divisible into 1-4 spaces. In the east and west bays of the building are cores with an escape staircase and toilet facilities accessible via a shared corridor for 1-2 office units. The most exclusive 6np is set back, defined only for part of the floor plan in the north-west corner of the building, with the adjacent portion of the roof used for living terraces, landscaping and technology. The building has 2 underground floors that contain garage parking, technical and storage areas. The garages are accessed via a two-lane ramp from Nádražní Street. In 1pp there are 52 parking spaces and technical rooms, in 2pp 22 parking spaces, technical rooms, warehouses and bicycle storage with adjacent changing rooms and showers.