Dear Mr. Smith,
I am responding to your advertisement in New York Post regarding the Building Manager position. Please regard this letter as my formal application, and see my enclosed resume.
I have over 11 years overseeing new construction of commercial and private home structures, and thus have more than the experience you are seeking in your advertisement. Prior to this position that I now hold as Building Manager, I was employed as an Assistant Building Manager for two years, and then as a Construction Worker for three years before that. This said, I know what quality work looks like and how it is brought about from every step in the process. This-along with my ability to communicate well direction as well as organize talented workers-makes me your best choice for this position.
I am confident that my extensive experience and knowledge make me a great asset to your company, and I ask that you call me at (555)-555-5555 to arrange a time to speak.