Landmark permit issued for 20 WEST 120TH STREET, MANHATTAN in Mount Morris Park

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New York City Landmarks Preservation Commission
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This is a landmark building permit with a issue date of April 6, 2009.

Landmark building permit details

Location 20 WEST 120TH STREET, MANHATTAN
Issue date April 6, 2009
(?) COFA COFA 09-8503

Certificates of Appropriateness (COFAs) are issued by the landmarks commission when it approves such things as building construction, demolition and visible additions to historic property. The certificates require a public hearing and the entire process can take several months.

Docket 09-8048
Historic district Mount Morris Park
Landmark name N/A
Expiration date September 16, 2014
Text
Pursuant to Section 25-307 of the Administrative Code of the City of New York, the Landmarks Preservation
Commission, at the Public Meeting of September 16, 2008, following the Public Hearing of the February 12,
2008, and Public Meeting of May 27, 2008, voted to grant a Certificate of Appropriateness for the proposed work
at the subject premises, as put forth in your application completed August 21, 2008.

The proposal, as approved, consists of demolishing the existing two-story rear extension and constructing a new
two-story rear yard addition, visible from West 119th Street, featuring a vertical wood mullion and glass cladding
system with copper spandrel panels behind the glass, a projecting balcony and a rooftop terrace with glass railing.
The proposal, as initially presented at the Public Hearing of the February 12, 2008, and Public Meeting of May
27, 2008, incorporated a longer full-height rear yard addition and a rooftop addition, which was visible over the
primary façade. The work was shown in current condition photographs, photomontages, a materials board, and
presentation drawings dated 2/12/08, 5/27/08 and 9/16/08, all prepared by AENA Architects, and submitted as
components of the application and presented at the Public Hearing and Public Meetings.

In reviewing the proposal, the Commission noted that the Mount Morris Park Historic District Designation
Report describes 20 West 120th Street Queen Anne style rowhouse designed by Alfred Zucker and built in
1886-87; and that the style, scale, materials and details of the building are among the features which contribute to
the special architectural and historic character of the Mount Morris Park Historic District.

With regard to this proposal, the Commission found that the construction of the proposed rear addition will not
eliminate any significant architectural features of the building; that the proposed rear addition will fill a small
space next to the existing extension up to its current height, therefore preserving the historic fabric at the upper
floors and maintaining the scale and character of the row; that the length of the proposed addition will match that
of the existing extension and other extensions within the row, therefore maintaining the central greenspace; and
that while visible from the street, the general design of the facade, featuring metal-clad spandrels behind the
modern glass and wood exterior features, visually recalls the regularized floor to floor divisions typically found at
the rear facade of a rowhouse of this age and style and will not detract from the building on the row. Based on
these findings, the Commission determined the proposed work to be appropriate to the building and the historic
district, and voted to approve this application.

However, in voting to grant the work approved, the Commission stipulated that two sets of signed and sealed
Department of Buildings filing drawings, which shall be submitted to the Department of Buildings, be submitted
to the Landmarks Preservation Commission for review and approval.

Subsequently, on March 31, 2009, the Landmarks Preservation Commission received drawings A.001, A.002,
A.010, A.011, A.100, A.101, A.102, A.200, A.300, A.700, P.200, and S.100 through S.104, dated 2/9/09,
X20.25, dated 12/10/08, X25.01, X25.02, dated 2/15/09, and AL-07, AL-08 and AL-09, dated 3/10/09, prepared
by AENA Architects. Accordingly, staff reviewed the drawings and found that the work approved by the
Commission has been maintained. The work also includes repairing the deteriorated brownstone stoop and
areaway stairs, the rusticated brownstone base and portions of the brownstone façade as required using built-up
cementitious composite layers, the finish coat to be colored and textured to match the original stone, at the West
120th Street façade; removing eight (8) one-over-one double-hung metal replacement windows and installing new
arch-headed (2) and straight-headed (6) one-over-one double-hung wood windows and new wood brickmolds
with a dark brown finish (Benjamin Moore 2114-10 "Bittersweet Chocolate") to match the original windows at
the West 120th Street façade; removing the deteriorated doors and transom and installing new paired wood doors
with raised panels and glass lights and transom painted black at the parlor floor entrance at the West 120th Street
façade; repairing the metal cornice as required with metal patches to match original profiles and scraping and
repainting dark brown (BM 2114-10) at the West 120th Street façade; scraping and repainting the areaway fence
and stoop rails black to match existing at the West 120th Street façade; installing a louver at grade within the
areaway at the West 120th Street façade; repointing brick masonry as required with new mortar to match the
original at the rear façade and chimney; removing three (3) one-over-one double-hung wood windows and one (1)
pair of one-over-one double-hung wood windows with center mullion and installing new wood windows with a
dark brown finish (BM 2114-10) to match the original at the 2nd and 3rd floors at the rear façade; removing one
window and enlarging the opening by lowering the sill and installing a new wood door with glass light painted
dark brown (BM 2114-10) to access the rooftop terrace at the 2nd floor at the rear façade; replacing the existing
roof system and installing new condensing units and dunnage with associated ductwork, skylights and a roof
access hatch at the rooftop; and interior alterations at the cellar, basement and 1st through 3rd floors. In regard to
this additional work, the Commission finds that, in accordance with the provisions set forth in Title 63 of the
Rules of the City of New York, Section 2-14, that the existing brownstone surface is exfoliating, damaged or
otherwise unsound; that the original texture, color, profiles and details of the brownstone will be replicated; that
the damaged stone will be cut back to sound stone and the new surface will be keyed into the sound stone and
will be built up in successive layers using a cementitious mix with the top layer tinted and finished to match the
original brownstone texture and color; and that the methods and materials proposed by the contractor have been
provided in the form of written specifications; in accordance with Section 3-04, that the new windows at the
primary façade will match the historic windows in terms of configuration, operation, details, material and finish;
and that the new windows at the secondary façades will match the historic windows in terms of configuration and
finish; and in accordance with Section 2-19, that the rooftop addition will consist solely of mechanical
equipment; that its installation will not result in damage to, or demolition of a significant architectural feature of
the roof; that it will be minimally visible from a public thoroughfare; and that it will not adversely affect
significant architectural features of adjacent improvements. Furthermore, the Commission finds that that the new
entrance doors and transom will match the operation, material and finish of the historic entrance doors and
transom; that the new entrance doors and transom have a level of decorative detail consistent with the style of the
building; finds that the new mortar will match the historic mortar in strength, color, texture, and tooling.

Based on these findings, the drawings have been marked approved with a perforated seal, and Certificate of
Appropriateness 09-8503 (LPC 09-8048) is being issued.

This permit is contingent upon the Commission's review and approval of samples of brownstone resurfacing
PAGE 2
Issued: 4/6/09
DOCKET: 09-8048
repairs and brick mortar prior to the commencement of work. Please contact Cory Herrala to schedule a site visit
once samples are available for review and to submit additional materials.

This permit is issued on the basis of the building and site conditions described in the application and disclosed
during the review process. By accepting this permit, the applicant agrees to notify the Commission if the actual
building or site conditions vary or if original or historic building fabric is discovered. The Commission reserves
the right to amend or revoke this permit, upon written notice to the applicant, in the event that the actual building
or site conditions are materially different from those described in the application or disclosed during the review
process.

All approved drawings are marked approved by the Commission with a perforated seal indicating the date of
approval. The work is limited to what is contained in the perforated documents. Other work or amendments to
this filing must be reviewed and approved separately. The applicant is hereby put on notice that performing or
maintaining any work not explicitly authorized by this permit may make the applicant liable for criminal and/or
civil penalties, including imprisonment and fines. This letter constitutes the permit; a copy must be prominently
displayed at the site while work is in progress. Please direct inquiries to Cory Scott Herrala.




Robert B. Tierney
Chair

PLEASE NOTE: PERFORATED DRAWINGS AND A COPY OF THIS PERMIT HAVE BEEN SENT TO:
Abel Artesona, AENA Architects




PAGE 3
Issued: 4/6/09
DOCKET: 09-8048

Added to EveryBlock on May 1, 2009.

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