Building Statistics

General Building Data:
• Building Name: Wellington at Hershey’s Mill
• Location and Site: 1361 E Boot Road West Chester, Pennsylvania 19380
• Building Occupant Name: Wellington Retirement
• Occupancy or Function Types: Assisted Living Community
• Size (Total Sq. Ft.): 370,000 Sq. Ft.
• Total Number of Stories: 5 Stories
• Number of Stories Above Grade: 3-4 Stories
• Primary Project Team:
o Owner: MSL Associates Ltd.
o Architect: MSL Associates Ltd.
o MEP Engineers: Sebastian & Sons, Inc.
Website: www.jfsebastian.com/
o General Contractor: Caldwell, Heckles & Egan Inc. (CH&E)
Website: www.cheinc.com/index.htm
o Electrical Contractor: State Electric
Website: www.state-mcf.com/
o Structural Engineers: P.W. Moss & Associates

• Dates of Construction (Start-Finish):
o Planned: December 1, 2003 – August 1, 2005
o Actual: December 1, 2003 – August 15, 2005
• Cost:
o Overall Project: $20,700,000
o Soft Costs: $5,300,000
• Project Delivery Method: Design-Bid-Build

Building System Information:
Architecture: Wellington at Hershey’s Mill was designed with the future inhabitants in mind. Luxury is a main theme in the design but functionality is under the surface, providing a beautiful place for retirees to live.
The partial lower level of Wellington contains the medical suite that houses two doctors’ offices, exams rooms, and nurses’ stations. For entertainment, a lounge, auditorium, beauty salon, pool and courtyard were included. The kitchen, laundry room, and exercise and fitness center round out this level.
The lobby/garage level includes a bistro, the dining room, another lounge, a country store, and a bank. For more leisure, a library, billiards room, meditation room, computer room, card room, and hobby room are all in one place. There are also offices in the building for the Wellington employees which provide close proximity for the tenants. This level also showcases a veranda and many balconies.
The first through third floors are similar with a few variances on the first floor plan. The same types of apartments are in the same location for each floor.

Building Envelope: The exterior of Wellington exudes the feeling of luxury the Architects intended. A porte cochere is constructed of 2x4 stud framing with a conventional stucco finish. The roof is framed with scissor trusses and finished with fiberglass shingles and PVC spires. The main entrance contains a vestibule with double doors.
The exterior walls are different for the lower and upper halves of the building. The lower level and lobby/garage level exterior walls are cmu block with a red stucco finish for the parts of the wall above grade. The first through third floors’ exterior walls are wood stud framing with two layers of white stucco finish.
For the lobby level, there are balconies and a veranda that feature beautiful 1’-4” long by 1’-0” wide columns that are made up with 2x4’s and 1/2” OSB and then finished with two coats of white stucco. Within the façade is the 6x6 post column that is the actual support. The balconies for each exterior apartment use 10”x10” fiberglass columns that are thinner versions of the lower level columns. For every balcony, a 36” high PVC railing was installed.

Construction: Construction began on Wellington in December of 2003 and consisted of three phases. The first phase was to be finished within 8 months of the start date and the second and third phases were scheduled for 20 months after the start date. Due to miscommunications mainly between the architect and the CM, the first phase was not finished in the allotted time. After coming to an agreement, the contractors worked well together and completed the next two phases by August 15, 2005, just two weeks later than the goal of August 1, 2005.
The CM’s contract with the owner was a bid guaranteed max price contract and the original cost was set at $19,400,000. Setbacks and change orders caused the final price increase to $20,700,000.

Zoning and Historical: The zoning for Wellington consisted of two parts. R1 Planned Residential Development for the first phase of Wellington and R2 for the second phase. There is protected vegetation on a section of the Serpentine Stone Ridge that runs behind Wellington.
Major National Codes: Wellington was designed under the Boca 1996 Building Code and construction permitted under the International 2000 Building Code.

Electrical: The main electrical service to the building is 35KV, which feeds a 1000 KVA transformer. The secondary voltage goes to a main 3000A switchboard, 480/277V, 65 KAIC. This switchboard feeds all four elevators, HVAC equipment, generator and three electric rooms. Each electric room has one 500 KVA transformer 480 TV 120/208 and a 2000A switchboard that feeds an 800A panel on each of the 3 floors. There is also a 300 KW generator for emergency power at 480V, one emergency panel for 480/277V lighting and a 75KW transformer 480 TV 120/208 panel for lighting. One elevator is on emergency power, each apartment has their own 125A service and panel. The generator also supplies power to a 40 HP fire pump.

Lighting: All of the common areas consist of incandescent 120V lighting while the office, game room, doctor’s office, and parking garage are fluorescent 277V. Each apartment includes lighting fixtures and paddle fans.
The site lighting consists of metal halide 277 V lighting on a 12 foot pole with carriage type fixtures.

Mechanical: The mechanical contractor divided the project into two areas: the common area and the residential area. The common area consisted of the main lobby, administrative offices, dining room, recreation wing, auditorium, and medical offices. The 197 apartments along with their corridors and stairwells made up the residential area.
All of the areas within the common space excluding the dining room have split system heat pumps while the dining room and kitchen are serviced by packaged rooftop heat pumps. For the indoor pool, a split system dehumidification system was used.
The residential HVAC systems included packaged thru-wall heat pumps for each apartment and packaged rooftop heat pumps for the main corridors.
All rooftop air conditioners supplied fresh air or fresh air was ducted to the split system air handling units. Exhaust fans were installed in all bathrooms, the parking garage, pool, and beauty salon. For heating in stairwells and by exterior exits, electric wall and ceiling heaters were set up. The parking garage was heated with heaters in the ceiling plenum.
Stand alone thermostats control all the HVAC systems in the building. The apartment thermostats are manual while the corridor thermostats are seven day programmable.

Structural: The structural design of Wellington is made up partially of masonry, concrete and steel in the lower levels and the foundation and wood framing for the first through third floor. The masonry walls are union-self-supporting elements and are dependent upon diaphragm action of the metal deck for stability and for resistance to wind and seismic forces. The steel structure is a union-self-supporting steel frame and is dependent upon diaphragm action of the metal roof deck also for stability and resistance to lateral forces. The codes followed in the design were ACI530-95 and ASCE5-95.
The foundation of Wellington is 4” concrete slab-on-grade with 6x6-W2.0xW2.0 WWF over 2-4” porous fill. The continuous footing is 2 feet in width and the column footings range from 3’x3’ to 4’-6”x4’-6”. There are two pier sizes in the foundation; 18”x18” and 20”x20”. Column sizes are HSS6’s, HSS8’s, and W10’s. The foundation wall is primarily 12” cmu block with a section of it being 8” cmu block.
The lobby floor framing has a 4” concrete slab over 1-1/2” 20 GA. Type B, wide rib metal deck with 6x6-W2.9xW2.9 WWF. The beams range in size from W8’s to W16’s and the joists from 12K to 24K and a section with JS8’s. Typical bay sizes are approximately 20’x39’ with variances due to the unique shape of the building.
The lobby roof framing has the same concrete slab system as the floor framing but some different steel sizes. The beams range in size from W8’s to W21’s and the joists are all 18KCS.
First floor framing has a 4” concrete slab over 1-1/2” metal floor deck (galv.) with a total thickness of 4” with 6x6-W2.9xW2.9 WWF. The beams range in size from W8’s to W18’s and the joists from 10K’s to 18K’s.
The second and third floors are identical so their framing plan is the same. The structure is wood framing from this point up. In the corridors there are 2x8’s at 16” o.c. and 18” TJL at 16” everywhere else. Five 1-3/4”x18” LVL are located in 8 places on the plans where the building “turns”. The only steel on these floors are at the elevator shafts and stairwells. The beams are W8x24’s.
The roof framing also has 2x8’s at 16” o.c. in the corridors but the trusses are sloped 24” at 24” o.c. maximum. The five 1-3/4”x18” LVL’s are in the same location as the second and third floors. The same size steel is present in the same locations as the second and third floors as well.

Fire Protection: Status: Have requested information/plans from the contractor.

Telecommunications: Each apartment has 3 cad 5 jacks and is wired for CATV and a wireless emergency call system.

Transportation: Status: Have requested information/plans from the contractor.

Special Systems: All common areas have smoke detectors and duct detectors on the HVAC equipment. There is a pull station at every exit and smoke detectors in every unit that will notify the front desk in the case of a fire. Each unit is also equipped with one audio/visual unit. The fire alarm system contains a dialer that will notify the fire department in the event no one is at the front desk. The garage level has a carbon monoxide system.