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MANOR HEIGHTS - Apartments & Houses Back to Project Profile

Manor Heights is a development by Octagon Developments Ltd on the site of the Manor Heights Apartments & Housesformer Manor House Hospital on the outskirts of Golders Green. Existing structures on the site consisted of a series of three-storey framed and brick buildings accommodating the wards and operating theater's.

The scheme envisaged, was to provide luxury residential accommodation together with a nursery building for early learning pupils, an affordable block of flats for a Housing Association and the prime development of 16 three-storey town houses and 32 apartments varying from 4 to 6 storeys.

The nursery building consisted of a 3 storey steel framed structure with a masonry envelope. Foundations were piled due to relatively poor ground conditions requiring reinforced concrete ground beams and lift shaft to support masonry and the steel frame. The steel work was engineered in-house using our Masterseries structural steel analysis and reinforced concrete design programs.

The houses also provided interesting design problems foremost, the design of the cantilevered balconies, which supported the front elevations. Foundations were also piled but in this instance ground beams were isolated from pile caps by anti-vibration mountings to dampen vibrations from the Underground Northern Line beneath. Similar isolation bearings were required for the Affordable Housing Block.

The Apartment block was formed on the upper part of the sloping site. To achieve the required underground car parking, a piled perimeter wall was incorporated allowing the five meters of surrounding site to be retained and giving uninterrupted working space.

Foundations were piled due to the intensity of the loading, requiring multi-group pile caps. The framework up to ground floor was of reinforced concrete, with columns, ground floor beams and trough slab. The design and initial detailing of the substructure was carried out using Masterseries reinforced concrete design and detail package although these preliminary drawings were prepared for tendering purposes. Later drawings were prepared using Autocad for construction purposes.

The superstructure, being in part greater than 5 storeys was subject to A3 progressive collapse. Since the client required traditional construction, load-bearing masonry was adopted to support the upper floors. The requirements of the code for A3 were accommodated using full vertical and horizontal ties. The precast slabs were preformed to allow ties to be introduced at the edges and vertical ties were incorporated in the load-bearing masonry.

The overall concept allowed the contractor to erect the superstructure with minimal time delay waiting for insitu works to cure prior to continuing to the next level.

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