A prime self contained, medical building
142-146 Harley Street is located at the heart of the Harley Street Medical Area
The Harley Street Medical Area is a world class centre of medical excellence located in the heart of central London and is home to over 5,000 practitioners’, small clinics and full scale hospitals, covering over 200 medical specialists. It boasts the largest concentration of medical providers anywhere in the world who offer outstanding patient care through pioneering treatments and cutting edge medicine within state of the art facilities.
The Harley Street Medical Area sits within one of the world’s most prosperous and well connected cities. It is within reach of several international airports, the St Pancras Eurostar terminal, numerous mainline stations, Crossrail system and the vast public transport network. There are very few places in the UK, or indeed the world that are quite so accessible to patients and staff.
The Harley Street Medical Area sits within one of the world’s most prosperous and well connected cities. It is within reach of several international airports, the St Pancras Eurostar terminal, numerous mainline stations, Crossrail system and the vast public transport network. There are very few places in the UK, or indeed the world that are quite so accessible to patients and staff.
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The building is set within a fantastic location, Marylebone, which provides a dynamic, refreshing and well connected area to work and reside in. Marylebone Village offers a full range of amenities, from being a renowned retail destination with fashionable boutiques and specialist food and wine retailers to catering for your everyday needs with a Waitrose supermarket, farmers market, post office and an array of restaurants, cafes and hotels. Marylebone is also surrounded by green space with Paddington Street Gardens situated just off Marylebone High Street and Regent’s Park (one of the eight Royal Parks in London) positioned just at the top of Harley Street, providing 395 acres of parkland to explore, enjoy and unwind in.
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142-146 Harley Street is a single property embracing the modern amenities required to facilitate a medical occupier
142-146 Harley Street is currently undergoing a substantial refurbishment by The Howard de Walden Estate to provide a self-contained D1 Medical building of 15,655 sq ft (1,454 sq m) across lower ground to 4th floor. The property consists of three buildings: 142, 144 and 146 Harley Street and includes the mews buildings at the rear on Park Crescent Mews West, which will provide staff facilities, ancillary space and bike storage.
The buildings are being sympathetically refurbished to provide a single property while simultaneously embracing the modern amenities required to facilitate a medical occupier. A new integrated vertical lifting platform is to be installed to enable disabled access as well as the installation of a new trolley lift and a new 6 person passenger lift. A new substation with 500kVA transformer, VRV heating/cooling system, LED lighting, video entry door system and fibre optic are a few examples of the provisions that will be available in the building.
The interconnectivity of all three buildings allows for a fantastic opportunity for a medical provider to occupy a prestigious and substantial Grade II listed building that lies within the centre of the Harley Street Medical Area.
The buildings are being sympathetically refurbished to provide a single property while simultaneously embracing the modern amenities required to facilitate a medical occupier. A new integrated vertical lifting platform is to be installed to enable disabled access as well as the installation of a new trolley lift and a new 6 person passenger lift. A new substation with 500kVA transformer, VRV heating/cooling system, LED lighting, video entry door system and fibre optic are a few examples of the provisions that will be available in the building.
The interconnectivity of all three buildings allows for a fantastic opportunity for a medical provider to occupy a prestigious and substantial Grade II listed building that lies within the centre of the Harley Street Medical Area.
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Interesting Fact: Lionel Logue, who was King George VI speech therapist and who helped him overcome his stammer, practiced from 146 Harley Street from 1926 to 1952. The building has been honoured with a green plaque by Westminster Council as a lasting tribute to Lionel’s work and outstanding commitment to his profession. |
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Amenities
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■ Fully integrated vertical lifting platform at main entrance (DDA access) ■ 1 x New trolley lift (serving all floors to main building except 1st floor of 142 & 144 Harley Street) ■ 1 x New 6 person passenger lift (serving LG, ground, 3rd Floor and half landings on 1st & 2nd floor) ■ LED lighting ■ 2 Pipe VRV heat/cooling system ■ Cat 6 voice/data cabling ■ New incoming fibre optic telecom service cableways (for future tenant provision) ■ Video entry control system |
■ Intruder alarm system ■ Occupational density: 1 person per 10m² ■ New integral UKPS substation with 500kVA transformer ■ TREND BEMS (Building Energy Management System) ■ 6 x WCs (3x GRD, 1x 2nd, 1x 3rd, 1x 4th) ■ 3 x ACC. WCs (LG, GRD, 4th) ■ 18 No. secure cycle spaces ■ Staff facilities; 2 x female showers, 2 x male showers, changing facilities, 3 x WCs, kitchenette, office accommodation ■ Cleaners store (3rd & 4th floor) |
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NOTE: All areas are approximate and will be verified on completion in accordance with RICS Code of Measuring Practice. |
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Structure
Building Structure New underpinning to rear of the property where basement slab is lowered. Existing structural brick walls retained with new lintels where required. Steel structure for new floors and new lift shaft with non-loadbearing blockwork in-between. Roof Main buildings and mews: existing timber structure retained with additional steel and timber supports. New steel structure to main roof where plant wells are created. Flat roof; courtyards and link buildings: new steel structure with timber joists in-between. Lift overruns: timber joists.
Staircase Basement: stone stair on steel supports. Ground to second floor: stone cantilevered stairs. Third to fourth floor and mews: timber stairs. Removable planters Located in the roofs of basement diagnostics space, planters can be lifted up by a crane (built-in lifting hooks on planters) to provide delivery access for large equipment. Services
Lifts 1 x (21 person/1600kg) Trolley/Stretcher lift operating at 1.0m/s serving all floors of the main buildings except first floor of 142 & 144 Harley Street. Trolley/stretcher lift, HTM 08-02 & 05-03e compliant: for carrying a patient on a trolley (dimensions: 800 mm by 2375 mm), on a stretcher or an empty extended standard hospital bed, together with the necessary staff and equipment.
1 x (6 person/450kg) motor room-less passenger lift operating at 1.0m/s providing access to lower ground, ground, 3rd floor and half landings for 1st & 2nd floor.
Passenger lift, HTM 08-02 & 05-03e compliant: a lift primarily used to carry general passenger traffic, including standing passengers and passengers using mobility aids such as wheelchairs.
Lighting LED lighting installed throughout the building except the plant and shell space. Emergency lighting in accordance with BS5266.
Low level wall mounted lights in front lightwell for maintenance access. Wall mounted lights in the courtyard lightwells for maintenance access only. Concealed low level lighting to perimeter of removable planters to allow staff access to courtyards. Lights above entrance doors to first floor plant enclosures for maintenance access only. Telecoms
Category 6 voice/data wiring to offices (perimeter wall mounted outlets and floor boxes). New incoming fibre optic telecom service cableways (ducts only for future tenants’ service provision).
Electrical Services
NEW integral UKPS substation with 500kVA (700A) transformer, three phase electricity supply. Separate secondary 100A three phase electricity supply for Trolley Lift. Air Conditioning & Environmental Control
Internal design conditions 230C+/-20C (summer), 210C+/-20C (winter). 2 Pipe VRV heat/cooling system is provided to all main rooms on ground to fourth floor and first floor mews.
The system is designed to accommodate an occupancy of 1 person per 10m² in addition to equipment/lighting cooling loads of 25W/m².
Local electric low surface temperature heaters in corridors and WCs adjacent to external envelope. Basement and circulation areas are heated only.
Basement, WCs, showers, change rooms and two internal rooms on third floor have mechanical ventilation with heat recovery and fresh air delivered at 6 air changes per hour. Other rooms are naturally ventilated with openable windows.
Shell space is not ventilated with services capped off for future provision.
Cooling to comms room (external condensers within roof plant well.
Control System
The building will have a TREND BEMS (Building Energy Management System). |
Security
Intruder alarm system. Video entry control system to the main entrance doors, linked to a received station at reception. WCs
A total of 12 WCs are provided, including 3 disabled WCs. Disabled accessible unisex toilets are provided to lower ground, ground and fourth floor. Standard unisex toilets are distributed as follows, one to each of second, third and fourth floors with three to ground floor of main building and a further three to ground floor of mews building. Staff Facilities
Separate staff facilities provided on ground and first floor, access via the mews. Two female showers and two male showers both with changing facilities and access to a shared WC on ground floor. Kitchenette and office accommodation on 1st floor. Cycle storage
18 secure cycle racks provided at ground level, access via the mews. Cleaners Store
Dedicated facilities provided at third and fourth floor. Disabled Access
Hidden step vertical lifting platform providing step free access from pavement to ground floor operating at 0.15m/s located at the main building entrance. No level access at the mews. Envelope
General Building to be fully compliant with Building Regulations including Part L2B ‘Conservation of fuel and power in existing building other than dwellings’ with dispensations for Listed Buildings where applicable. Courtyards
Removable planters have bench seat to perimeter and indirect lighting. Surface finish is pebbles with square stone pavers creating staff pathway between the mews and the main buildings. Steps to Harley Street
Stone tiles replaced with new Portland stone. Steps at 146 Harley Street house a sesame lift. External Walls
Elevations retained as existing: London stock brick walls and timber single glazed sash windows. Only mews elevations to Park Crescent Mews West are altered from original, although they retain the character of London stock brick, timber panelled garage doors and timber single glazed windows (both sash and casement). Thermal performance of external walls is retained as existing. Roof
Main buildings and mews: Existing slate roof covering is replaced with new to match the existing. Thermal performance is improved by installing insulation in-between rafters and insulated plasterboard to underside of rafter. Flat roof (Link buildings): Kemper System liquid applied waterproofing (Kemperol 2K-PUR) installed on ply board.
Flat roof (Courtyards): ABG Geosynthetics drained roof system with pebbles.
Plant
Plant space split between roof plant wells, first floor plant enclosures, ground floor of the mews and the vaults. Vibrations External condensers located in purpose built plant enclosures at first floor and roof plant wells utilising appropriate anti-vibration mounts. Insulation Values New elements meet Building Regulations requirements, existing elements retain ‘as existing’ values. Internal Walls
Fabric Retained existing walls and partitions: Plaster patch-repaired, lining paper applied prior to painting. New partitions: Insulated metal stud with double layer of plasterboard. Acoustic rating RW = 58dB.
Lift shaft wall: Blockwork and fire lined.
Waterproofing render to basement walls.
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Finishes
Walls Existing walls lined with paper and painted, new walls painted over dry-lining. All WCs and staff change facilities have fully tiled walls. Doors Painted solid timber panelled doors. Retained existing or new to match. Basement doors: Painted solid core timber flush doors.
Vision panels to circulation doors in basement.
Generally, architraves, linings and stops made of solid timber and matching existing. Door heights vary per floor. Fire rating upgrade to retained doors where required with intumescent paint.
Glazed screens
Clear, double glazed acoustic panel partition system with silicone joints. Ironmongery
Solid brass ironmongery with matt black nickel finish, of contemporary design suitable for historic buildings. Brushed stainless steel ironmongery to basement, accessible WCs and the mews. Concealed closers to front of house doors. Brushed stainless steel grab rails and drop-down rails in accessible WCs and accessible change room. Concealed hinges to all joinery doors. Special polished brass ironmongery to ground floor front doors.
Floors
Ground and first floor rooms: solid timber parquet flooring. Second to fourth floor rooms: Engineered timber planks. Circulation areas, first to fourth floor: Broadloom carpet. Circulation areas in ground floor of the main buildings: marble tile. Lower ground areas: sheet vinyl flooring. Lower ground areas with lowered slab: raised metal flooring. WCs, and ground floor circulation area in the mews: Porcelain tiles. Admin areas in the mews: Broadloom carpet. Ceilings
Existing plaster ceilings repaired and painted with surface mounted pendent lighting. New suspended plasterboard ceilings painted with recessed downlights. Modular suspended tile ceiling Ecophon Access C in basement and fourth floor circulation areas. Insulated plasterboard to sloping ceilings in the top floors and plasterboard bulkheads with coffer details to conceal lighting. Stairs
Main stone stairs: stone repaired, sealed and border painted white. Carpet runner and satin nickel stair rods. Metal balusters painted white. Timber handrail varnished natural mahogany. Upper floors timber satin: broadloom carpet to full stair outline. Timber railings painted. Glazed skylights above.
Lower ground stairs: stone exposed and supported on exposed steel structure with feature lighting behind. Existing metal railings painted.
Mews timber stairs: broadloom carpet to full stair outline. Timber railings painted.
Lifts
Back painted glass panelling to walls and full height mirror strips. Ceiling with incorporated lights to perimeter. Black brushed stainless steel entrance doors and control panels. Timber architraves to lift lobby side. Porcelain tiled floor in passenger lift and vinyl floor in trolley/stretcher lift. Vaults & plant rooms
Painted concrete flooring and walls. Fire lining to soffit in plant rooms and painted soffit in the vaults. Waterproofing render applied to vaults prior to painting. Shell space
(Lower ground) Painted walls and fire lining to ceiling. No floor finish. EPC Rating
To be confirmed upon completion of the building. |
For further information
The Howard de Walden Estate
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The Landlord
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The Professional Team
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Lift Consultant
VerticA Consulting Ltd. 2A Maple Court Ash Lane, Collingtree Northampton NN4 0NB T: +44 (0) 1604 858 850 E: [email protected] |
Project Manager
Daniel Beard The Howard de Walden Estate 27 Baker Street London W1U 8EQ T: +44 (0) 20 7580 3163 hdwe.co.uk |
Planning Consultant
Andrea Merrington The Howard de Walden Estate 27 Baker Street London W1U 8EQ T: +44 (0) 20 7580 3163 hdwe.co.uk |
Mechanical and Electrical Engineer
Chris Evans Consulting 27-33 Brighton Road Redhill, Surrey RH1 6PP T: +44 (0) 20 8916 2284 |
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Architect
Sonnemann Toon Architects LLP Quality House 6-9 Quality Court London WC2A 1HP T: +44 (0) 20 7580 8881 E: [email protected] st-arch.co.uk |
Quantity Surveyor
Nexus Project Services Ltd. 44 Howard Road Coulsdon, Surrey CR5 2EA T: +44 (0) 20 8407 2856 E: [email protected] |
Main Contractor
Whistlers Limited 22 Cross Keys Close Marylebone London, W1U 2DW T: +44 (0) 20 3362 6500 E: [email protected] whistbuild.com |
Lift Supplier
Sesame ACCESS Unit 1, Cumberland Works Wintersell Business Park Surrey KT14 7LF T: +44 (0)1784 440088 sesameaccess.com |
Howard de Walden Management Limited for themselves and as agents for Howard de Walden Estates Limited give notice that the particulars as set out are intended as general outline only for the guidance of intending purchasers/lessees and neither Howard de Walden Management Limited nor Howard de Walden Estates Limited on whose behalf the particulars are provided, accept any responsibility for any inaccuracies the particulars may contain. Any intending purchaser/lessee should not rely on them as statements or representations of fact but should satisfy themselves by inspection or otherwise as to their correctness. All floor areas and other measurements are approximate. These particulars do not form, or form any part of, any offer or contract. Neither Howard de Walden Management Limited nor Howard de Walden Estates Limited nor any of their employees have any authority, either orally or in writing, to make or give any representation or warranties in relation to the property. Unless otherwise stated all prices and rents quoted are exclusive.
