My top header looks different on single pages but is fine on the home page

For some reason, my top header looks different on single pages but is fine on the home page.
my site

     <?PHP
   if ( is_front_page() && is_home() ):
                    ?>
    <h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home">CC AND BUILDS</a> </h1>
    <?php
    else :
                    ?>
    <p class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home">CC AND BUILDS</a></p>
    <?php
    endif;
    ?>

any ideas?