The works comprise the refurbishment of an existing five storey office building, including the enhancement of Hanover and Pollen Street facades by recladding the elevations, the infill of existing terraces at third, fourth and fifth floors for additional office space and the creation of new terraces at fourth and fifth floors. It also includes the removal of the existing ground floor canopy and replacement with a new public art in Pollen Street. Internally, the alterations include the reconfiguration of the office floors with improved reception, WC and lift core and new cycling parking facilities. In roof level, the works include the enlargement of the roof plant enclosure and installation of new plant.

The refurbishment of the offices will be to a ‘Category A/B’ developer’s finish, to provide high quality fully serviced accommodation, including raised accessed floor and a unique coffered ceiling, by refurbishing the existing concrete waffle modules and introducing new ones in the new ceiling area.

Note: This schedule gives approximate figures and are subject to construction tolerances.

The following design criteria for occupancy of the offices have been adopted:

Sanitary Accommodation

Lavatory provision is on a floor-by-floor basis with two super-loo type WC, one per men one per women, at each level. They are accessed by access control system by the tenant of each floor.

Lifts

A new 1 No. 13 persons, speed 1.0m/s, single sided opening passenger lifts serving all office floors, from lift lobby. Terrazzo concrete floor, white opaque glass panels and powder-coated telescopic bronze doors, trim, call button and indicator and single combined control station. Full height feature bronze coloured lift reveals to all floors. Lighting within the car shall be lit via a Barrisol ceiling.

Windows & Glazing

New full height double glazed aluminium framed windows installed into extended elevations and refurbished existing windows in the retained part of the facades. Silicone jointed externally to the Standing seam aluminium and terracotta tile elevations. New window powder coated frames and in all windows. Decorative textured terracotta tiles are placed above the 4th floor windows in Hanover elevation.

Doors: New full height glazed door with new smart access control system.

Floor

New concrete cemento floor tiling with Intraform barrier matting, with ribbed carpet and rubber inserts leading to the concrete timber floor.

Walls

Reception desk wall and ceiling bulkhead in timber panels, polished plaster perimeter wall.

Banquette seating and riser doors in timber fins.

Lift front in cemento concrete with bronze trims

Ceiling

Plasterboard ceiling suspended. Bespoke waffle ceiling in monolithic GRG with suspended LED indirect continuous lighting.

Floor

For 1st to 4th floor the existing mid-grade metal raised access floor with consistent metal finish on adjustable pedestals to remain and made good. Existing raised access floor panels from 5th floor to be reused and relocated at perimeters to columns, windows, floor extensions as necessary. New raised access floor throughout the 5th floor.

Floor grilles located throughout the floor for ventilation.

Walls

Existing concrete walls with exposed framework pattern. White painted plasterboard walls in the perimeter, and continuous face fixed perimeter skirting. Riser access doors with designed patterned mesh.

Existing concrete waffle refurbished. Finished in off-white to match surrounding walls. Suspended lighting feature on existing waffle module. New GRG waffle modules to floor extensions to match existing.

Doors

Glazed fire doors into main office space. All other doors are full height solid core hardwood, flush painted white, with hardwood lipping and high- quality ironmongery. All doors onto primary office space to have concealed hinges, self-closers and minimum signage.

Floors

High quality terrazzo floor tiles.

Walls

Laminate panels with aluminium trims in the joints. One wall with feature 3D biscuit tiles.

Wash hand basin

Bespoke concrete cemento vanity unit with black corian sink.

Pan

High quality Duravit Wall mounted to IPS WC pan, with automatic closure.

Fittings

Lusso short projection wall mounted tap in black.

IPS

Top panel hinged for ease of access to WC cistern behind.

Lighting

WC lit predominantly from indirect background lighting provided from behind mirror and ceiling perimeter bulkhead with concealed lighting. Direct spotlights in the WC ceiling.

Floor

Havwoods timber flooring with underfloor heating.

Walls

Full height timber fins cladded to stair and stair landings. Recessed 20mm powder coated skirting.

Patterned wall panels in concrete cemento to lift wall. Concealed fixings with shadow gap detail. Laminate walls to WC door elevation.

Ceiling

Flat plasterboard ceiling.

Stairs

Existing stair 1: New timber threads tops and plugs underneath. Existing metal stringer to remain. New timber fins feature wall and new balustrade. Level signage in stair fins in timber.

Existing stair 2: Back of house escape stair to be made good.

Maximum allowable imposed loading is 2.5kN/m2 (+ 1.0kN/m2 for partitions).

The following design criteria has been utilised in the design of the base building services.

External Design Criteria

Summer Winter = 30°C db 21°C wb = -4°C sa

Internal Design Criteria

Internal offices (for purposes of main plant sizing) Temperature: Summer Winter 22°C db +/- 2°C 21°C db +/- 2°C No humidity controls

WC Areas

Summer uncontrolled, make up air from offices

Winter

18°C +/- 2°C No humidity controls Staircase Winter 18°C +/- 2°C No humidity controls Reception Winter 18°C +/- 2°C No humidity controls

Office Air Conditioning Loads

Lighting: 10W/m2 Equipment: 25W/m2 Occupancy: one person per 8m2

Heat gain from people

80 W/p Sensible 50 W/p Latent

Ventilation Rates

Offices: 16 l/s/p at one person per 8m2 WCs 10 AC/H per WC

Internal Noise Levels

Offices: WCs: Stairs: Reception: NR38 NR45 NR40 NR40

Underfloor Air Conditioning

NR38 NR45 NR40 NR40 Underfloor Air Conditioning systems are provided on first to fifth floors providing conditioned air into the office space via Fantile units installed in the floor void.

Ventilation

A Centralised Air Handling Unit with efficient motors and drives, and air to air rotary heat recovery is installed at roof level within the external plant enclosure. The fresh air is supplied to the underfloor air conditioning units.

Cold Water Service

A potable water storage tank is provided at basement level within the mechanical services plantroom. A boosted pressurised water supply serves sanitary appliances within the WC core. A separate boosted potable water supply is provided in the tenant pipework riser. A temporary spool piece connection is provided on each floor for extension by the tenant to serve tea points etc

Hot Water Service

Hot water is provided to landlord WC areas by local electric water heaters. Any provision for hot water for tea points etc will be provided by the tenant.

Soil and Waste Installation

The foul water drainage system shall be via primary ventilated systems routed down the building and connecting the discharge from the WC core and future tenants’ tea point facilities. A capped connection for extension is provided on each floor within the tenant pipework riser.

Electrical Design Criteria

The following allowances have been used within the electrical design: Tenant’s Lighting:

Future Tenant spare capacity Tenant’s Power 10W/m2 25W/m2 10W/m2

Tenant’s Power:

Tenant’s power is derived via a three-phase split- metered lighting and power distribution board to each floor, fed from a tap-off on a tenant rising main busbar. Rising busbar served from switch panel located in the basement. The building is provided with a central utility billing meter in the basement vault, with all tenants provided with sub meters only for energy monitoring. Tenants shall be contra-charged by the landlord for all energy usage.

Voice and Data

New incoming telecoms and fibre services shall be provided to the building, with secondary points located on each floor. Vertical containment located within the central electrical riser for future tenant expansion.

A landlord’s internal CCTV coverage is provided. Electronic access control protects landing entrances to each demised floor. Common lift is provided with access control card reader within lift car. A door entry intercom system is provided to the main entrance.

Lighting

Lighting is designed in accordance with BS EN 12464-1:2011. Dali lighting control system is provided to tenant floors

The artificial internal lighting installations will provide the following average levels of illumination:

Emergency Lighting

ToBS5266.

Fire Alarm System

Fire alarm to BS5839, classification L2.

Environmental Features

High efficiency fans and thermal-wheel heat recovery on central ventilation plant. High efficiency LED lighting throughout with presence detection and daylight dimming. Packaged air source heat pumps in the form of VRF to provide heating and cooling.

Tenant Plant

Provision for tenant plant at roof level.