diff --git a/package-lock.json b/package-lock.json
index 378759f4..8ae63188 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,6 +20,7 @@
         "@radix-ui/react-select": "^1.2.2",
         "@radix-ui/react-separator": "^1.0.3",
         "@radix-ui/react-slot": "^1.0.2",
+        "@radix-ui/react-tooltip": "^1.0.7",
         "@tanstack/react-query": "^4.29.12",
         "@tanstack/react-table": "^8.9.3",
         "@types/node": "20.2.3",
@@ -2141,6 +2142,122 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-tooltip": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-tooltip/-/react-tooltip-1.0.7.tgz",
+      "integrity": "sha512-lPh5iKNFVQ/jav/j6ZrWq3blfDJ0OH9R6FlNUHPMqdLuQ9vwDgFsRxvl8b7Asuy5c8xmoojHUxKHQSOAvMHxyw==",
+      "dependencies": {
+        "@babel/runtime": "^7.13.10",
+        "@radix-ui/primitive": "1.0.1",
+        "@radix-ui/react-compose-refs": "1.0.1",
+        "@radix-ui/react-context": "1.0.1",
+        "@radix-ui/react-dismissable-layer": "1.0.5",
+        "@radix-ui/react-id": "1.0.1",
+        "@radix-ui/react-popper": "1.1.3",
+        "@radix-ui/react-portal": "1.0.4",
+        "@radix-ui/react-presence": "1.0.1",
+        "@radix-ui/react-primitive": "1.0.3",
+        "@radix-ui/react-slot": "1.0.2",
+        "@radix-ui/react-use-controllable-state": "1.0.1",
+        "@radix-ui/react-visually-hidden": "1.0.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0",
+        "react-dom": "^16.8 || ^17.0 || ^18.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-tooltip/node_modules/@radix-ui/react-dismissable-layer": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-dismissable-layer/-/react-dismissable-layer-1.0.5.tgz",
+      "integrity": "sha512-aJeDjQhywg9LBu2t/At58hCvr7pEm0o2Ke1x33B+MhjNmmZ17sy4KImo0KPLgsnc/zN7GPdce8Cnn0SWvwZO7g==",
+      "dependencies": {
+        "@babel/runtime": "^7.13.10",
+        "@radix-ui/primitive": "1.0.1",
+        "@radix-ui/react-compose-refs": "1.0.1",
+        "@radix-ui/react-primitive": "1.0.3",
+        "@radix-ui/react-use-callback-ref": "1.0.1",
+        "@radix-ui/react-use-escape-keydown": "1.0.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0",
+        "react-dom": "^16.8 || ^17.0 || ^18.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-tooltip/node_modules/@radix-ui/react-popper": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-popper/-/react-popper-1.1.3.tgz",
+      "integrity": "sha512-cKpopj/5RHZWjrbF2846jBNacjQVwkP068DfmgrNJXpvVWrOvlAmE9xSiy5OqeE+Gi8D9fP+oDhUnPqNMY8/5w==",
+      "dependencies": {
+        "@babel/runtime": "^7.13.10",
+        "@floating-ui/react-dom": "^2.0.0",
+        "@radix-ui/react-arrow": "1.0.3",
+        "@radix-ui/react-compose-refs": "1.0.1",
+        "@radix-ui/react-context": "1.0.1",
+        "@radix-ui/react-primitive": "1.0.3",
+        "@radix-ui/react-use-callback-ref": "1.0.1",
+        "@radix-ui/react-use-layout-effect": "1.0.1",
+        "@radix-ui/react-use-rect": "1.0.1",
+        "@radix-ui/react-use-size": "1.0.1",
+        "@radix-ui/rect": "1.0.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0",
+        "react-dom": "^16.8 || ^17.0 || ^18.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-tooltip/node_modules/@radix-ui/react-portal": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-portal/-/react-portal-1.0.4.tgz",
+      "integrity": "sha512-Qki+C/EuGUVCQTOTD5vzJzJuMUlewbzuKyUy+/iHM2uwGiru9gZeBJtHAPKAEkB5KWGi9mP/CHKcY0wt1aW45Q==",
+      "dependencies": {
+        "@babel/runtime": "^7.13.10",
+        "@radix-ui/react-primitive": "1.0.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0",
+        "react-dom": "^16.8 || ^17.0 || ^18.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-use-callback-ref": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-use-callback-ref/-/react-use-callback-ref-1.0.1.tgz",
diff --git a/package.json b/package.json
index 4b36d5e5..67d32b65 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "@radix-ui/react-select": "^1.2.2",
     "@radix-ui/react-separator": "^1.0.3",
     "@radix-ui/react-slot": "^1.0.2",
+    "@radix-ui/react-tooltip": "^1.0.7",
     "@tanstack/react-query": "^4.29.12",
     "@tanstack/react-table": "^8.9.3",
     "@types/node": "20.2.3",
diff --git a/src/app/components/building-passport/BackToPortfolioButton.tsx b/src/app/components/building-passport/BackToPortfolioButton.tsx
new file mode 100644
index 00000000..0b6f943f
--- /dev/null
+++ b/src/app/components/building-passport/BackToPortfolioButton.tsx
@@ -0,0 +1,38 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+import { ArrowLeftIcon } from "@heroicons/react/24/outline";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/app/shadcn_components/ui/tooltip";
+
+const BackToPortfolioButton = ({ portfolioId }: { portfolioId: string }) => {
+  const router = useRouter();
+
+  const handleBackClick = () => {
+    router.push(`/portfolio/${portfolioId}`);
+  };
+
+  return (
+    <TooltipProvider>
+      <Tooltip>
+        <TooltipTrigger asChild>
+          <button
+            onClick={handleBackClick}
+            className="bg-white hover:bg-gray-200 text-brandblue font-bold py-2 px-4 rounded-full"
+          >
+            <ArrowLeftIcon className="w-5 h-5 mr-1" />
+          </button>
+        </TooltipTrigger>
+        <TooltipContent className="bg-brandblue text-gray-100">
+          Back to Portfolio
+        </TooltipContent>
+      </Tooltip>
+    </TooltipProvider>
+  );
+};
+
+export default BackToPortfolioButton;
diff --git a/src/app/portfolio/[slug]/(portfolio)/page.tsx b/src/app/portfolio/[slug]/(portfolio)/page.tsx
index c131ab79..483b864b 100644
--- a/src/app/portfolio/[slug]/(portfolio)/page.tsx
+++ b/src/app/portfolio/[slug]/(portfolio)/page.tsx
@@ -129,84 +129,88 @@ function SummaryBox({
 
   return (
     <div className="p-6 bg-white rounded-lg leading-relaxed">
-      <h2 className="text-2xl font-bold mb-4 text-gray-700 text-center">
+      <h2 className="text-2xl font-bold mb-4 text-brandblue text-center">
         Portfolio Summary
       </h2>
       <div className="grid grid-cols-1 md:grid-cols-1 gap-6">
-        <div className="p-4 bg-brandblue rounded-lg">
-          <h3 className="text-lg font-semibold text-gray-200 mb-2">
+        <div className="p-4 bg-gray-50 rounded-lg">
+          <h3 className="text-lg font-semibold text-brandblue mb-2">
             Work Package
           </h3>
           <table className="w-full">
             <tbody>
               <tr>
-                <td className="text-gray-200 ">Total Budget</td>
-                <td className="text-gray-200 text-end">{budgetFormatted}</td>
+                <td className="text-brandblue ">Total Budget</td>
+                <td className="text-brandblue text-end">{budgetFormatted}</td>
               </tr>
               <tr>
-                <td className="text-gray-200 ">Total Cost</td>
-                <td className="text-gray-200 text-end">{totalCostFormatted}</td>
+                <td className="text-brandblue ">Total Cost</td>
+                <td className="text-brandblue text-end">
+                  {totalCostFormatted}
+                </td>
               </tr>
 
               <tr>
-                <td className="text-gray-200">Estimated Duration</td>
-                <td className="text-gray-200 text-end">
+                <td className="text-brandblue">Estimated Duration</td>
+                <td className="text-brandblue text-end">
                   {estimatedDurationFormatted}
                 </td>
               </tr>
 
               <tr>
-                <td className="text-gray-200">Total properties</td>
-                <td className="text-gray-200 text-end">{numProperties}</td>
+                <td className="text-brandblue">Total properties</td>
+                <td className="text-brandblue text-end">{numProperties}</td>
               </tr>
             </tbody>
           </table>
         </div>
-        <div className="p-4 bg-brandblue rounded-lg">
+        <div className="p-4 bg-gray-50 rounded-lg">
           {/* Environmental Impact */}
-          <h3 className="text-lg font-semibold text-gray-200 mb-2">
+          <h3 className="text-lg font-semibold text-brandblue mb-2">
             Environmental Impact
           </h3>
           <table className="w-full">
             <tbody>
               <tr>
-                <td className="text-gray-200">
+                <td className="text-brandblue">
                   Annual{" "}
                   <span>
                     CO<sub>2</sub>
                   </span>{" "}
                   Savings
                 </td>
-                <td className="text-gray-200 text-end">
+                <td className="text-brandblue text-end">
                   {co2EquivalentSavingsFormatted}
                 </td>
               </tr>
               <tr>
-                <td className="text-gray-200">Annual Energy Savings</td>
-                <td className="text-gray-200 text-end">
+                <td className="text-brandblue">Annual Energy Savings</td>
+                <td className="text-brandblue text-end">
                   {energySavingsFormatted}
                 </td>
               </tr>
             </tbody>
           </table>
         </div>
-        <div className="p-4 bg-brandblue rounded-lg">
+        <div className="p-4 bg-gray-50 rounded-lg">
           {/* Financial Impact table */}
-          <h3 className="text-lg font-semibold text-gray-200 mb-2">
+          <h3 className="text-lg font-semibold text-brandblue mb-2">
             Financial Impact
           </h3>
           <table className="w-full">
             <tbody>
               <tr>
-                <td className="text-gray-200 ">Annual Energy Bill Reduction</td>
-                <td className="text-gray-200 text-end">
+                <td className="text-brandblue ">
+                  Annual Energy Bill Reduction
+                </td>
+                <td className="text-brandblue text-end">
                   {energyCostSavingsFormatted}
                 </td>
               </tr>
 
               <tr>
-                <td className="text-gray-200 ">Total Value Increase</td>
-                <td className="text-gray-200 text-end">
+                <td className="text-brandblue ">Total Value Increase</td>
+                <td className="text-brandblue text-end">
                   {totalValueIncreaseFormatted}
                 </td>
               </tr>
diff --git a/src/app/portfolio/[slug]/building-passport/[propertyId]/layout.tsx b/src/app/portfolio/[slug]/building-passport/[propertyId]/layout.tsx
index 6be6da2c..3819e58c 100644
--- a/src/app/portfolio/[slug]/building-passport/[propertyId]/layout.tsx
+++ b/src/app/portfolio/[slug]/building-passport/[propertyId]/layout.tsx
@@ -1,5 +1,6 @@
 import { Toolbar } from "@/app/components/building-passport/Toolbar";
 import { getPropertyMeta } from "./utils";
+import BackToPortfolioButton from "@/app/components/building-passport/BackToPortfolioButton";
 
 export default async function DashboardLayout({
   children, // will be a page or nested layout
@@ -25,7 +26,11 @@ export default async function DashboardLayout({
   return (
     <section>
       <div className="mx-auto w-full max-w-6xl mb-10">
-        <div className="flex justify-start items-end p-8">
+        <div className="flex justify-start items-end pr-8 py-8">
+          <div className="mr-2">
+            <BackToPortfolioButton portfolioId={portfolioId} />
+          </div>
+
           <h1 className="text-3xl font-bold mr-3 text-gray-900">
             {propertyMeta.address}
           </h1>
diff --git a/src/app/shadcn_components/ui/tooltip.tsx b/src/app/shadcn_components/ui/tooltip.tsx
new file mode 100644
index 00000000..30fc44d9
--- /dev/null
+++ b/src/app/shadcn_components/ui/tooltip.tsx
@@ -0,0 +1,30 @@
+"use client"
+
+import * as React from "react"
+import * as TooltipPrimitive from "@radix-ui/react-tooltip"
+
+import { cn } from "@/lib/utils"
+
+const TooltipProvider = TooltipPrimitive.Provider
+
+const Tooltip = TooltipPrimitive.Root
+
+const TooltipTrigger = TooltipPrimitive.Trigger
+
+const TooltipContent = React.forwardRef<
+  React.ElementRef<typeof TooltipPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <TooltipPrimitive.Content
+    ref={ref}
+    sideOffset={sideOffset}
+    className={cn(
+      "z-50 overflow-hidden rounded-md border bg-popover px-3 py-1.5 text-sm text-popover-foreground shadow-md animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+      className
+    )}
+    {...props}
+  />
+))
+TooltipContent.displayName = TooltipPrimitive.Content.displayName
+
+export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider }