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PROJECT LOCATION- 757 Concourse Village West, Bronx NY 10451

SIZE (SQ F) – 52,000 SF

YEAR COMPLETED – 2020

Kel-Mar provided pre-construction CM services for this new construction 4-story charter school project
comprising of 30 classrooms, gymnasium, cafetorium, and administrative spaces across 52,000sf. Kel-
Mar was engaged at the start of design and assisted with material options, mechanical system design
considerations, SOE and foundation system alternatives, meeting minutes, and subcontractor
solicitation/leveling/negotiations/award. The facility is supported on a deep foundation system, includes
1800cy of concrete foundations and elevated slabs, and 350 tons of structural steel. The intricate façade
including a cast stone entry colonnade wrapping steel columns and beams, ground face CMU, aluminum
curtainwall, storefront windows with metal trim, and a fiber cement rainscreen system. The liquid applied
roof was designed to act as stormwater retention with elevated roof drains.

The integration of all façade finishes by the masonry, fiber cement, and aluminum/glass trades
necessitated close coordination. To advance the procurement and installation of these elements, Kel-
Mar’s project management team prepared coordination drawings including material specific installation
details. It is estimated that this effort saved at least eight weeks of the submittal / shop drawing / mock-up
process.

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PROJECT LOCATION – 411 WALES AVENUE, BRONX NY 10454

SIZE (SQ F) – 59,000 SF

YEAR COMPLETED – 2019

Kel-Mar was engaged at the start of design for this fast-paced charter school project completed through TCO in under 12-months. Kel-Mar coordinated and documented all pre-construction meetings, determined the best pre-engineered building manufacturer, proposed 9 alternates each (adds and deducts) should there be any budget issues, eliminated unneeded equipment platforms, and provided extensive budgeting analysis to ensure the project budget and schedule would be met. Kel-Mar leveled at least three potential subcontractors for each trade, reviewed with project ownership, and executed contracts. The project was a conversion of an existing 52,500sf dilapidated warehouse into a state-of-the-art school, and provided a pre-engineered gymnasium addition on a side parking lot.

The entire building’s structure and façade was repaired and restored including abatement of existing and new roof system, all new aluminum windows and entrances, brick replacement/repair/repointing, cast stone work, anti-graffiti coatings, and interior structural column and slab repairs. The interior was fitted out with 40 classrooms, various offices, cafetorium, and new gymnasium addition. New stairwells were provided and a passenger elevator. The gymnasium addition required excavation down to rock at 10’ below grade, and incorporated a custom cast-in-place stormwater retention system below the slab. A new 1200A electric service powered the building which was conditioned with gas heat RTUs, and perimeter hydronic heat. The building occupied three sides of a city block necessitating extensive sidewalk and curb replacement, and BPP scope.

The original scope included limited under slab plumbing work for added toilet rooms, however after construction began, the structural engineer determined the entire ground floor slab (26,000sf) needed to be removed and replaced due to instability issues. Kel-Mar was able to make some hard buys with trades which generated enough savings to offset this increased cost and pay for trade overtime associated with expediting work to meet the schedule which was affected by the slab replacement setback. Like many projects Kel-Mar is involved with, schedule is paramount, and in this case if the completion date were missed there would be several hundred affected students and staff. To achieve closeout and TCO within a month, Kel-Mar engaged an expeditor that has been a part of several successful Kel-Mar projects.

The final construction cost increased 3.6% over the original budget due predominately to a requirement to haul off
contaminated soils at the addition and increase in the incoming electrical service once ConEd deemed that 480V power would not be available on site, which affected the switchgear and all panelboards/feeders.

Kel-Mar has built a strong rapport with the entire design team of this project including civil, architectural, structural and MEP’s, and would welcome the opportunity to utilize them as consultants under the NYC DDC program.

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The purchased building was completely gutted. The first two floors were extended to the rear so an interior connection between the buildings could be created. The remaining floors were slightly decreased to follow zoning laws and two additional floors were added giving the school a total increase of 20,000 square feet. Both front and back facades were removed. The rear was given a window wall from the third to seventh floor. An intricate front façade consisting of channel glass, steel, formed aluminum fascia panels and stone sets the front façade apart from the surrounding structures.

Classrooms, offices, bathroom facilities, a new elevator and a scissor stairs with fire glass walls are found inside the new building. Complete new mechanical systems using the existing chiller and a tie-in to the school’s emergency generator were also required. This $14 million project met its September completion date to coincide with the new school year.

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Located in Brooklyn, The Hellenic Classical Charter School developed a comprehensive plan to renovate and expand their growing facility. The project called for both a lateral, five-story addition to the south and a vertical, two-story addition over the existing school.

Extensive modifications had to be made to the existing structure to support the addition including excavating beneath the school to pour footings and grade beams as well as opening walls for supporting steel columns. While the lateral addition work could be cordoned off from the busy school, the project required an intricate, five-step phasing and protection plan for the existing building because the school remained in session throughout construction.

Kelmar also extended the existing elevator and inserted a new floor at ground level to convert the old two-story gym into two separate floors. The school now enjoys additional offices, classrooms, two new staircases and a new two-story gymnasium. The project was submitted to the SEAoNY (The Structural Engineers Association of New York) for award recognition.

This project was also given an award at the Building Brooklyn 2016 awards from the Brooklyn Chamber of Commerce

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