diff --git a/frontend/src/pages/Properties/PropertyDetail.js b/frontend/src/pages/Properties/PropertyDetail.js
index 731d7c8..e92a604 100644
--- a/frontend/src/pages/Properties/PropertyDetail.js
+++ b/frontend/src/pages/Properties/PropertyDetail.js
@@ -263,7 +263,20 @@ const PropertyDetail = () => {
       setLoading(true);
       const response = await propertiesAPI.getById(id);
       console.log('Property details:', response);
-      setProperty(response.data.data.property);
+      const propertyData = response.data.data.property;
+      setProperty(propertyData);
+      
+      // Convert backend sections to frontend format
+      if (propertyData.sections && propertyData.sections.length > 0) {
+        const convertedSections = propertyData.sections.map(section => ({
+          id: section.id,
+          name: section.name,
+          coordinates: section.polygonData?.coordinates?.[0] || [],
+          color: section.polygonData?.color || SECTION_COLORS[0],
+          area: section.area
+        }));
+        setLawnSections(convertedSections);
+      }
     } catch (error) {
       console.error('Failed to fetch property:', error);
       toast.error('Failed to load property');
@@ -287,35 +300,61 @@ const PropertyDetail = () => {
     setIsDrawing(false);
   };
 
-  const saveLawnSection = () => {
+  const saveLawnSection = async () => {
     if (!sectionName.trim()) {
       toast.error('Please enter a section name');
       return;
     }
 
-    const newSection = {
-      id: Date.now(),
-      name: sectionName,
-      coordinates: pendingSection.coordinates,
-      color: pendingSection.color,
-      area: pendingSection.area
-    };
+    try {
+      const sectionData = {
+        name: sectionName,
+        area: pendingSection.area,
+        polygonData: {
+          coordinates: [pendingSection.coordinates],
+          color: pendingSection.color
+        },
+        grassType: null,
+        soilType: null
+      };
 
-    setLawnSections(prev => [...prev, newSection]);
-    toast.success(`${sectionName} section created!`);
-    
-    // Reset and cycle color
-    setSectionName('');
-    setPendingSection(null);
-    setShowNameModal(false);
-    const nextIndex = (SECTION_COLORS.findIndex(c => c.value === currentColor.value) + 1) % SECTION_COLORS.length;
-    setCurrentColor(SECTION_COLORS[nextIndex]);
+      const response = await propertiesAPI.createSection(id, sectionData);
+      const savedSection = response.data.data.section;
+      
+      // Convert backend format to frontend format
+      const newSection = {
+        id: savedSection.id,
+        name: savedSection.name,
+        coordinates: savedSection.polygonData.coordinates[0],
+        color: savedSection.polygonData.color,
+        area: savedSection.area
+      };
+
+      setLawnSections(prev => [...prev, newSection]);
+      toast.success(`${sectionName} section created and saved!`);
+      
+      // Reset and cycle color
+      setSectionName('');
+      setPendingSection(null);
+      setShowNameModal(false);
+      const nextIndex = (SECTION_COLORS.findIndex(c => c.value === currentColor.value) + 1) % SECTION_COLORS.length;
+      setCurrentColor(SECTION_COLORS[nextIndex]);
+    } catch (error) {
+      console.error('Failed to save section:', error);
+      toast.error('Failed to save section. Please try again.');
+    }
   };
 
-  const deleteLawnSection = (sectionId) => {
+  const deleteLawnSection = async (sectionId) => {
     if (window.confirm('Delete this lawn section?')) {
-      setLawnSections(prev => prev.filter(s => s.id !== sectionId));
-      toast.success('Section deleted');
+      try {
+        await propertiesAPI.deleteSection(id, sectionId);
+        setLawnSections(prev => prev.filter(s => s.id !== sectionId));
+        toast.success('Section deleted');
+      } catch (error) {
+        console.error('Failed to delete section:', error);
+        toast.error('Failed to delete section. Please try again.');
+      }
     }
   };
 
@@ -326,29 +365,64 @@ const PropertyDetail = () => {
     setShowEditModal(true);
   };
 
-  const saveEditedSection = () => {
+  const saveEditedSection = async () => {
     if (!sectionName.trim()) {
       toast.error('Please enter a section name');
       return;
     }
 
-    const updatedSection = {
-      ...editingSection,
-      name: sectionName,
-      color: currentColor
-    };
+    try {
+      const sectionData = {
+        name: sectionName,
+        area: editingSection.area,
+        polygonData: {
+          coordinates: [editingSection.coordinates],
+          color: currentColor
+        },
+        grassType: null,
+        soilType: null
+      };
 
-    setLawnSections(prev => prev.map(s => s.id === editingSection.id ? updatedSection : s));
-    toast.success('Section updated!');
-    
-    // Reset
-    setSectionName('');
-    setEditingSection(null);
-    setShowEditModal(false);
+      await propertiesAPI.updateSection(id, editingSection.id, sectionData);
+      
+      const updatedSection = {
+        ...editingSection,
+        name: sectionName,
+        color: currentColor
+      };
+
+      setLawnSections(prev => prev.map(s => s.id === editingSection.id ? updatedSection : s));
+      toast.success('Section updated and saved!');
+      
+      // Reset
+      setSectionName('');
+      setEditingSection(null);
+      setShowEditModal(false);
+    } catch (error) {
+      console.error('Failed to update section:', error);
+      toast.error('Failed to update section. Please try again.');
+    }
   };
 
-  const updateSection = (sectionId, updatedSection) => {
-    setLawnSections(prev => prev.map(s => s.id === sectionId ? updatedSection : s));
+  const updateSection = async (sectionId, updatedSection) => {
+    try {
+      const sectionData = {
+        name: updatedSection.name,
+        area: updatedSection.area,
+        polygonData: {
+          coordinates: [updatedSection.coordinates],
+          color: updatedSection.color
+        },
+        grassType: null,
+        soilType: null
+      };
+
+      await propertiesAPI.updateSection(id, sectionId, sectionData);
+      setLawnSections(prev => prev.map(s => s.id === sectionId ? updatedSection : s));
+    } catch (error) {
+      console.error('Failed to update section coordinates:', error);
+      toast.error('Failed to save polygon changes. Please try again.');
+    }
   };
 
   const getTotalArea = () => {