diff --git a/src/core/core.cpp b/src/core/core.cpp
index 2f218a9..e966019 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -133,6 +133,7 @@ void define_build(py::module& m) {
             .def(py::init<bool, bool>(), "Initialise without formulae", py::arg("build_all_reward_models")=true, py::arg("build_all_labels")=true)
             .def_property_readonly("preserved_label_names", &storm::builder::BuilderOptions::getLabelNames, "Labels preserved")
             .def("set_build_state_valuations", &storm::builder::BuilderOptions::setBuildStateValuations, "Build state valuations", py::arg("new_value")=true)
+            .def("set_build_observation_valuations", &storm::builder::BuilderOptions::setBuildObservationValuations, "Build observation valuations", py::arg("new_value")=true)
             .def("set_build_with_choice_origins", &storm::builder::BuilderOptions::setBuildChoiceOrigins, "Build choice origins", py::arg("new_value")=true)
             .def("set_add_out_of_bounds_state", &storm::builder::BuilderOptions::setAddOutOfBoundsState, "Build with out of bounds state", py::arg("new_value")=true)
             .def("set_add_overlapping_guards_label", &storm::builder::BuilderOptions::setAddOverlappingGuardsLabel, "Build with overlapping guards state labeled", py::arg("new_value")=true)
diff --git a/src/storage/model.cpp b/src/storage/model.cpp
index ee97b69..152c140 100644
--- a/src/storage/model.cpp
+++ b/src/storage/model.cpp
@@ -217,6 +217,8 @@ void define_sparse_model(py::module& m) {
         .def("get_observation", &SparsePomdp<double>::getObservation, py::arg("state"))
         .def_property_readonly("observations", &SparsePomdp<double>::getObservations)
         .def_property_readonly("nr_observations", &SparsePomdp<double>::getNrObservations)
+        .def("has_observation_valuations", &SparsePomdp<double>::hasObservationValuations)
+        .def_property_readonly("observation_valuations", &SparsePomdp<double>::getObservationValuations)
     ;
     py::class_<SparseCtmc<double>, std::shared_ptr<SparseCtmc<double>>>(m, "SparseCtmc", "CTMC in sparse representation", model)
         .def(py::init<SparseCtmc<double>>(), py::arg("other_model"))