diff --git a/src/Domain/Creators/Sphere.cpp b/src/Domain/Creators/Sphere.cpp
index 500a5583eb241..7d01fcc2db9ce 100644
--- a/src/Domain/Creators/Sphere.cpp
+++ b/src/Domain/Creators/Sphere.cpp
@@ -278,10 +278,9 @@ Sphere::Sphere(
                                                    : radial_partitioning_[0],
                       // Translation inner radius
                       radial_partitioning_.empty()
-                          ? outer_radius_
-                          : radial_partitioning_.back(),
-                      // Translation outer radius
-                      outer_radius_);
+                          ? std::nullopt
+                          : std::optional<std::pair<double, double>>{
+                                {radial_partitioning_.back(), outer_radius_}});
     }
   }
 }
diff --git a/src/Domain/Creators/SphereTimeDependentMaps.cpp b/src/Domain/Creators/SphereTimeDependentMaps.cpp
index e81993aaf3759..d0c8ba79313df 100644
--- a/src/Domain/Creators/SphereTimeDependentMaps.cpp
+++ b/src/Domain/Creators/SphereTimeDependentMaps.cpp
@@ -116,7 +116,9 @@ TimeDependentMapOptions::create_functions_of_time(
       std::make_unique<FunctionsOfTime::PiecewisePolynomial<2>>(
           initial_time_,
           std::array<DataVector, 3>{
-              {{3, 0.0}, initial_translation_velocity_temp, {3, 0.0}}},
+              {{3, 0.0},
+               std::move(initial_translation_velocity_temp),
+               {3, 0.0}}},
           expiration_times.at(translation_name));
 
   return result;
@@ -124,8 +126,8 @@ TimeDependentMapOptions::create_functions_of_time(
 
 void TimeDependentMapOptions::build_maps(
     const std::array<double, 3>& center, const double inner_radius,
-    const double outer_radius, const double translation_inner_radius,
-    const double translation_outer_radius) {
+    const double outer_radius,
+    std::optional<std::pair<double, double>> translation_transition_radii) {
   std::unique_ptr<domain::CoordinateMaps::ShapeMapTransitionFunctions::
                       ShapeMapTransitionFunction>
       transition_func =
@@ -135,13 +137,14 @@ void TimeDependentMapOptions::build_maps(
                         initial_l_max_, std::move(transition_func),
                         shape_name,     size_name};
 
-  if (translation_inner_radius == translation_outer_radius) {
+  if (translation_transition_radii.has_value()) {
     // Uniform translation
-    translation_map_ = TranslationMap{translation_name};
+    translation_map_ = TranslationMap{
+        translation_name, translation_transition_radii.value().first,
+        translation_transition_radii.value().second};
   } else {
     // Translation with transition
-    translation_map_ = TranslationMap{
-        translation_name, translation_inner_radius, translation_outer_radius};
+    translation_map_ = TranslationMap{translation_name};
   }
 }
 
diff --git a/src/Domain/Creators/SphereTimeDependentMaps.hpp b/src/Domain/Creators/SphereTimeDependentMaps.hpp
index 1a0b22e31354f..599acef0cbd52 100644
--- a/src/Domain/Creators/SphereTimeDependentMaps.hpp
+++ b/src/Domain/Creators/SphereTimeDependentMaps.hpp
@@ -189,10 +189,10 @@ struct TimeDependentMapOptions {
    * - Shape: `Shape` (with a size function of time)
    * - Translation: `Translation`
    */
-  void build_maps(const std::array<double, 3>& center,
-                  const double inner_radius, const double outer_radius,
-                  const double translation_inner_radius,
-                  const double translation_outer_radius);
+  void build_maps(
+      const std::array<double, 3>& center, const double inner_radius,
+      const double outer_radius,
+      std::optional<std::pair<double, double>> translation_transition_radii);
 
   /*!
    * \brief This will construct the map from `Frame::Distorted` to
diff --git a/tests/Unit/Domain/Creators/Test_SphereTimeDependentMaps.cpp b/tests/Unit/Domain/Creators/Test_SphereTimeDependentMaps.cpp
index 9c7143b1e4870..9908a07bb9015 100644
--- a/tests/Unit/Domain/Creators/Test_SphereTimeDependentMaps.cpp
+++ b/tests/Unit/Domain/Creators/Test_SphereTimeDependentMaps.cpp
@@ -104,9 +104,10 @@ void test(const bool use_non_zero_shape) {
                  .get()) == translation_non_zero);
 
   for (const bool include_distorted : make_array(true, false)) {
-    time_dep_options.build_maps(center, inner_radius, outer_radius,
-                                translation_inner_radius,
-                                translation_outer_radius);
+    time_dep_options.build_maps(
+        center, inner_radius, outer_radius,
+        std::pair<double, double>{translation_inner_radius,
+                                  translation_outer_radius});
 
     const auto grid_to_distorted_map =
         time_dep_options.grid_to_distorted_map(include_distorted);