55 Harley Street, Marylebone, London, W1, Specifications

BUILDING STRUCTURE

55 Harley Street is a terraced seven storey Edwardian building constructed around 1910. The property consists of load bearing masonry brickwork walls with timber floor joists and floor boarding. The building is provided with
a new lift which incorporates new supporting steelwork within the floors. The front facade comprises ornate stone facade which has been cleaned, repaired and restored.

ROOF

Existing mansard construction covered in salvaged natural slates to pitched elevations. New insulated asphalt roof coverings have been provided to all flat roofs and constructed in accordance with current Building Regulations. a paved terrace is provided at 1st floor level on top of an insulated asphalt roof. Parapets have been upgraded with either new lead cappings or new York stone copings.

EXISTING WALLS

Damp-proofing undertaken throughout the basement areas. Insulated metal stud linings with double layer of board to provide a minimum of 53dB acoustic attenuation. Generally painted plaster finished with painted and French polished skirting.

DOORS

New replacement four panel Longden timber half hour fire doors. Those doors incorporating vision panels are provided with safety glazing to BS 6206. Glazing to fire doors are in 6.5mm Pyran, clear, fire rated to 30 mins in integrity and insulation. all architraves, linings, stops etc are solid and match the existing profiles.

LIFT

New 5 person passenger lift serving lower ground to fifth floors. Steel frame lift shaft and enclosing walls. Internal lift car walls provided with low iron glass back-painted to match staircase wall finishes. Stone floor finish to match main entrance flooring.

ELECTRICAL SERVICES

The main distribution panel (MDP1) consists of a 200amp rated wall mounted MCCB panel with 200a rated bus-bar and integral 200a rated isolator as main switch. Distribution boards located on lower Ground and Fourth Floors. The building is provided with a 79KVa supply.

Fully serviced reception and staircase areas.

Small power and data to consulting and examination rooms are provided throughout the building.

Feature lED lighting is provided within the main entrance corridor and first floor panelled consulting room.

LIGHTING

lED and low Energy Fluorescent lighting is provided within the consulting rooms, examination rooms, corridors, escape routes, offices and toilets. The building complies with l2 of the Building Regulations and provides the required lux levels for the intended use.

Emergency lighting is provided in accordance with BS 5266.

STRUCTURED CABLING

The structured wiring installation comprises Cat 5e UTP cable from each outlet position back to various equipment rack positions.

AIR CONDITIONING

New Mitsubishi electric VRF comfort cooling / heating heat recovery systems are provided throughout the building with individual controllers in each room. Extract vents are provided in examination rooms, toilets and teapoints.

SECURITY

Video and audio Entry-phone run through the Cat 5e, complete with multi digit push button door entry facility with intercom, access control by proximity reads, wireless intruder alarm and fire alarm compliant with BS 5389 Part 1 are all provided.

SHOWER

Shower and toilet facility provided on the lower Ground floor comprising stone floor and tiling to shower area, toughened low iron shower screen and door, handheld shower piece, shower controls, Duravit Starck 3 wall mounted wC pan with concealed cistern, Duravit Happy D washbasin with electronic basin mixer with temperature control.

WCs

a unisex toilet is provided at each level apart from the 4th floor where a tea point is located. a disabled toilet is provided on the ground floor. Fittings generally comprise a Duravit Starck 3 wall mounted wC pan with concealed cistern, axor Stark electronic basin mixer with temperature control, over Duravit Stark 3 Happy D washbasin with oak vanity unit below, hand dryer and toilet roll holder. a hinged grab rail is included in the disabled toilet.

GENERAL FINISHES
WALL FINISHES, FLOOR COVERINGS, IRONMONGERY.

Wall finishes – Painted plasterboard over insulated internal wall details. French polished timber panels to some rooms. Replacement high-spec ‘sash and casement’ double glazed timber windows to match existing profiles.

Floor coverings – Lipica Fiorito stone, Bremworth 80/20 wool/nylon on 40oz high performance underlay, 25mm thick coir matting and 2mm thick safety sheet flooring by Altro.

Ironmongery – Vieler satin stainless steel straight level handles.

TERRACE

The first floor terrace comprises York stone paved area with flush walk-on rooflight.

CLEANERS AREA

Dedicated facilities are provided within front vaults on the lower ground floor level and incorporate a Belfast sink with hot water supply.

VAULTS

Additional storage, suitable for clinical waste in adjacent front vaults

INSULATION VALUES

To the minimum standards specified by current Building Regulations Part l2a and to satisfy the intended use of the building.

FIRE BARRIERS

Fire barriers to statutory requirements.

PUBLIC HEALTH

New below ground drainage system. Existing above ground drainage, where in good condition, has been retained and, where necessary, either repaired or replaced to match existing cast iron installation.

Toilets are mechanically vented and heated.

ALTERNATIVE FIRE ESCAPE

an alternative fire escape route for the upper floors is provided at fifth floor level, linked to the adjoining staircase in No 53.

LOADINGS

Floors are capable of supporting general office load of 2.5kN/mÇ. Should the intended usage load exceed this or if heavy equipment is to be installed then specialist advice should be sought.