  We provide an existence and uniqueness result for mild solutions to
semilinear stochastic partial differential equations in the framework of the
semigroup approach with locally monotone coefficients. An important component
of the proof is an application of the dilation theorem of Nagy, which allows us
to reduce the problem to infinite dimensional stochastic differential equations
on a larger Hilbert space. Properties of the solutions like the Markov property
are discussed as well.
