diff --git a/dev/Repeater/FlowLayoutAlgorithm.cpp b/dev/Repeater/FlowLayoutAlgorithm.cpp
index 75cbecd898..d684412de4 100644
--- a/dev/Repeater/FlowLayoutAlgorithm.cpp
+++ b/dev/Repeater/FlowLayoutAlgorithm.cpp
@@ -135,7 +135,7 @@ winrt::Size FlowLayoutAlgorithm::MeasureElement(
 {
     const auto measureSize = m_algorithmCallbacks->Algorithm_GetMeasureSize(index, availableSize, context);
     element.Measure(measureSize);
-    auto provisionalArrangeSize = m_algorithmCallbacks->Algorithm_GetProvisionalArrangeSize(index, measureSize, element.DesiredSize(), context);
+    const auto provisionalArrangeSize = m_algorithmCallbacks->Algorithm_GetProvisionalArrangeSize(index, measureSize, element.DesiredSize(), context);
     m_algorithmCallbacks->Algorithm_OnElementMeasured(element, index, availableSize, measureSize, element.DesiredSize(), provisionalArrangeSize, context);
 
     return provisionalArrangeSize;
@@ -503,7 +503,7 @@ winrt::Rect FlowLayoutAlgorithm::EstimateExtent(const winrt::Size& availableSize
         lastBounds = m_elementManager.GetLayoutBoundsForRealizedIndex(last);
     }
 
-    winrt::Rect extent = m_algorithmCallbacks->Algorithm_GetExtent(
+    const winrt::Rect extent = m_algorithmCallbacks->Algorithm_GetExtent(
         availableSize,
         m_context.get(),
         firstRealizedElement,
diff --git a/dev/Repeater/ItemsRepeaterScrollHost.cpp b/dev/Repeater/ItemsRepeaterScrollHost.cpp
index ebd6928a5d..f430e993a5 100644
--- a/dev/Repeater/ItemsRepeaterScrollHost.cpp
+++ b/dev/Repeater/ItemsRepeaterScrollHost.cpp
@@ -67,7 +67,7 @@ winrt::Size ItemsRepeaterScrollHost::MeasureOverride(winrt::Size const& availabl
 
 winrt::Size ItemsRepeaterScrollHost::ArrangeOverride(winrt::Size const& finalSize)
 {
-    winrt::Size result = finalSize;
+    const winrt::Size result = finalSize;
     if (auto scrollViewer = ScrollViewer())
     {
         if (SharedHelpers::IsRS5OrHigher())
diff --git a/dev/Repeater/UniformGridLayout.cpp b/dev/Repeater/UniformGridLayout.cpp
index a8345cfabf..a293d791ff 100644
--- a/dev/Repeater/UniformGridLayout.cpp
+++ b/dev/Repeater/UniformGridLayout.cpp
@@ -324,7 +324,7 @@ winrt::Rect UniformGridLayout::GetLayoutRectForDataIndex(
     const int indexInRow = index - (rowIndex * itemsPerLine);
 
     auto gridState = GetAsGridState(context.LayoutState());
-    winrt::Rect bounds = MinorMajorRect(
+    const winrt::Rect bounds = MinorMajorRect(
         indexInRow * GetMinorSizeWithSpacing(context) + MinorStart(lastExtent),
         rowIndex * GetMajorSizeWithSpacing(context) + MajorStart(lastExtent),
         GetScrollOrientation() == ScrollOrientation::Vertical ? static_cast<float>(gridState->EffectiveItemWidth()) : static_cast<float>(gridState->EffectiveItemHeight()),
diff --git a/dev/ScrollPresenter/ScrollPresenter.cpp b/dev/ScrollPresenter/ScrollPresenter.cpp
index e62818e341..1fe73b50d2 100644
--- a/dev/ScrollPresenter/ScrollPresenter.cpp
+++ b/dev/ScrollPresenter/ScrollPresenter.cpp
@@ -675,7 +675,7 @@ winrt::Size ScrollPresenter::ArrangeOverride(winrt::Size const& finalSize)
     //    No matter the ScrollPresenter's alignment, it does not grow larger than finalSize. viewport is finalSize again.
     // 3. m_availableSize <= finalSize, the ScrollPresenter is constrained and its Content is larger than or equal to
     //    the available size. viewport is the smaller & constrained m_availableSize.
-    winrt::Size viewport =
+    const winrt::Size viewport =
     {
         std::min(finalSize.Width, m_availableSize.Width),
         std::min(finalSize.Height, m_availableSize.Height)
diff --git a/dev/ScrollPresenter/ScrollPresenterAnchoring.cpp b/dev/ScrollPresenter/ScrollPresenterAnchoring.cpp
index 7e40d281a8..22c385e7f9 100644
--- a/dev/ScrollPresenter/ScrollPresenterAnchoring.cpp
+++ b/dev/ScrollPresenter/ScrollPresenterAnchoring.cpp
@@ -262,7 +262,7 @@ winrt::Size ScrollPresenter::ComputeViewportToElementAnchorPointsDistance(
         MUX_ASSERT(isnan(viewportAnchorPointVerticalOffset) == isnan(elementAnchorPointVerticalOffset));
 
         // Rounding the distance to 6 precision digits to avoid layout cycles due to float/double conversions.
-        winrt::Size viewportToElementAnchorPointsDistance = winrt::Size{
+        const winrt::Size viewportToElementAnchorPointsDistance = winrt::Size{
             isnan(viewportAnchorPointHorizontalOffset) ? 
                 FloatUtil::NaN : static_cast<float>(round((elementAnchorPointHorizontalOffset - viewportAnchorPointHorizontalOffset) * 1000000) / 1000000),
             isnan(viewportAnchorPointVerticalOffset) ? 
diff --git a/dev/ScrollPresenter/ScrollPresenterPrivate.cpp b/dev/ScrollPresenter/ScrollPresenterPrivate.cpp
index 16894b4d85..9fb330498c 100644
--- a/dev/ScrollPresenter/ScrollPresenterPrivate.cpp
+++ b/dev/ScrollPresenter/ScrollPresenterPrivate.cpp
@@ -69,7 +69,7 @@ winrt::Rect ScrollPresenter::GetRelativeViewport(
 
     ComputeMinMaxPositions(m_zoomFactor, &minPosition, nullptr);
 
-    winrt::Rect result = { (minPosition.x - m_contentLayoutOffsetX + static_cast<float>(m_zoomedHorizontalOffset) - elementOffset.X) / m_zoomFactor,
+    const winrt::Rect result = { (minPosition.x - m_contentLayoutOffsetX + static_cast<float>(m_zoomedHorizontalOffset) - elementOffset.X) / m_zoomFactor,
         (minPosition.y - m_contentLayoutOffsetY + static_cast<float>(m_zoomedVerticalOffset) - elementOffset.Y) / m_zoomFactor,
         viewportWidth, viewportHeight };
 
diff --git a/dev/TwoPaneView/DisplayRegionHelper.cpp b/dev/TwoPaneView/DisplayRegionHelper.cpp
index 4229c36c5d..b824c7e506 100644
--- a/dev/TwoPaneView/DisplayRegionHelper.cpp
+++ b/dev/TwoPaneView/DisplayRegionHelper.cpp
@@ -110,7 +110,7 @@ winrt::Rect DisplayRegionHelper::WindowRect()
     {
         // Return the bounds of the simulated window
         winrt::FrameworkElement window = DisplayRegionHelper::WindowElement().as<winrt::FrameworkElement>();
-        winrt::Rect rc = {
+        const winrt::Rect rc = {
             0, 0,
             (float)window.ActualWidth(),
             (float)window.ActualHeight() };