diff --git a/src/compiler/binder.ts b/src/compiler/binder.ts
index 2682a5938d1..9ce8b4f4eda 100644
--- a/src/compiler/binder.ts
+++ b/src/compiler/binder.ts
@@ -1444,10 +1444,7 @@ namespace ts {
 
             // If this is a property-parameter, then also declare the property symbol into the
             // containing class.
-            if (node.flags & NodeFlags.AccessibilityModifier &&
-                node.parent.kind === SyntaxKind.Constructor &&
-                isClassLike(node.parent.parent)) {
-
+            if (isPropertyParameterDeclaration(node)) {
                 const classDeclaration = <ClassLikeDeclaration>node.parent.parent;
                 declareSymbol(classDeclaration.symbol.members, classDeclaration.symbol, node, SymbolFlags.Property, SymbolFlags.PropertyExcludes);
             }
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 7d4bfb43de7..57c4353baf1 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -67,6 +67,7 @@ namespace ts {
             // The language service will always care about the narrowed type of a symbol, because that is
             // the type the language says the symbol should have.
             getTypeOfSymbolAtLocation: getNarrowedTypeOfSymbol,
+            getSymbolOfParameterPropertyDeclaration,
             getDeclaredTypeOfSymbol,
             getPropertiesOfType,
             getPropertyOfType,
@@ -427,6 +428,16 @@ namespace ts {
             }
             // return undefined if we can't find a symbol.
         }
+        
+        function getSymbolOfParameterPropertyDeclaration(parameter: ParameterDeclaration, parameterName: string): Symbol[] {
+            const constructoDeclaration = parameter.parent;
+            const classDeclaration = parameter.parent.parent;
+            
+            const parameterSymbol = getSymbol(constructoDeclaration.locals, parameterName, SymbolFlags.Value);
+            const propertySymbol = getSymbol(classDeclaration.symbol.members, parameterName, SymbolFlags.Value);
+            
+            return parameterSymbol && propertySymbol ? [parameterSymbol, propertySymbol] : undefined;
+        }
 
         function isBlockScopedNameDeclaredBeforeUse(declaration: Declaration, usage: Node): boolean {
             const declarationFile = getSourceFileOfNode(declaration);
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index ff8ffa4ebd2..4c1fb2bb1cd 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1723,6 +1723,7 @@ namespace ts {
 
         getSymbolsInScope(location: Node, meaning: SymbolFlags): Symbol[];
         getSymbolAtLocation(node: Node): Symbol;
+        getSymbolOfParameterPropertyDeclaration(parameter: ParameterDeclaration, parameterName: string): Symbol[];
         getShorthandAssignmentValueSymbol(location: Node): Symbol;
         getTypeAtLocation(node: Node): Type;
         typeToString(type: Type, enclosingDeclaration?: Node, flags?: TypeFormatFlags): string;
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index eee09fc641f..472225d31e5 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -2741,4 +2741,10 @@ namespace ts {
             }
         }
     }
+    
+    export function isPropertyParameterDeclaration(node: ParameterDeclaration): boolean {
+        // If this is a property-parameter, then also declare the property symbol into the
+        // containing class.
+        return node.flags & NodeFlags.AccessibilityModifier && node.parent.kind === SyntaxKind.Constructor && isClassLike(node.parent.parent);
+    }
 }
diff --git a/src/services/services.ts b/src/services/services.ts
index a9dda549ead..4f2af5c35c4 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -5967,6 +5967,15 @@ namespace ts {
                     }
                 }
 
+                // If the symbol.valueDeclaration is a property parameter declaration,
+                // we should include both parameter declaration symbol and property declaration symbol
+                // Parameter Declaration symbol is only visible within function scope, so the symbol is stored in contructor.locals.
+                // Property Declaration symbol is a member of the class, so the symbol is stored in its class Declaration.symbol.members
+                if (symbol.valueDeclaration && symbol.valueDeclaration.kind === SyntaxKind.Parameter &&
+                    isPropertyParameterDeclaration(<ParameterDeclaration>symbol.valueDeclaration)) {
+                    result = result.concat(typeChecker.getSymbolOfParameterPropertyDeclaration(<ParameterDeclaration>symbol.valueDeclaration, symbol.name));
+                }
+
                 // If this is a union property, add all the symbols from all its source symbols in all unioned types.
                 // If the symbol is an instantiation from a another symbol (e.g. widened symbol) , add the root the list
                 forEach(typeChecker.getRootSymbols(symbol), rootSymbol => {
@@ -6036,6 +6045,8 @@ namespace ts {
                     });
                 }
 
+                // If the reference
+
                 // Unwrap symbols to get to the root (e.g. transient symbols as a result of widening)
                 // Or a union property, use its underlying unioned symbols
                 return forEach(typeChecker.getRootSymbols(referenceSymbol), rootSymbol => {