diff --git a/app/src/frontend/building/data-components/data-title.tsx b/app/src/frontend/building/data-components/data-title.tsx
index f36022c3..d108adf3 100644
--- a/app/src/frontend/building/data-components/data-title.tsx
+++ b/app/src/frontend/building/data-components/data-title.tsx
@@ -3,7 +3,13 @@ import PropTypes from 'prop-types';
 
 import Tooltip from '../../components/tooltip';
 
-const DataTitle: React.FunctionComponent<any> = (props) => {
+
+interface DataTitleProps {
+    title: string;
+    tooltip: string;
+}
+
+const DataTitle: React.FunctionComponent<DataTitleProps> = (props) => {
     return (
         <dt>
             { props.title }
@@ -17,7 +23,16 @@ DataTitle.propTypes = {
     tooltip: PropTypes.string
 }
 
-const DataTitleCopyable: React.FunctionComponent<any> = (props) => { // TODO: remove any
+
+interface DataTitleCopyableProps {
+    title: string;
+    tooltip: string;
+    slug: string;
+    disabled?: boolean;
+    copy: any; // TODO: type should be CopyProps, but that clashes with propTypes in some obscure way
+}
+
+const DataTitleCopyable: React.FunctionComponent<DataTitleCopyableProps> = (props) => { // TODO: remove any
     return (
         <div className="data-title">
             { props.tooltip? <Tooltip text={ props.tooltip } /> : null }
@@ -48,7 +63,8 @@ DataTitleCopyable.propTypes = {
     copy: PropTypes.shape({
         copying: PropTypes.bool,
         copyingKey: PropTypes.func,
-        toggleCopyAttribute: PropTypes.func
+        toggleCopyAttribute: PropTypes.func,
+        toggleCopying: PropTypes.func
     })
 }
 
diff --git a/app/src/frontend/building/data-container.tsx b/app/src/frontend/building/data-container.tsx
index 66bcb098..821a4374 100644
--- a/app/src/frontend/building/data-container.tsx
+++ b/app/src/frontend/building/data-container.tsx
@@ -24,10 +24,17 @@ interface DataContainerProps {
 interface DataContainerState {
     error: string;
     copying: boolean;
-    keys_to_copy: object;
+    keys_to_copy: {[key: string]: boolean};
     building: Building
 }
 
+interface CopyProps {
+    copying: boolean;
+    toggleCopying: () => void;
+    toggleCopyAttribute: (key: string) => void;
+    copyingKey: (key: string) => boolean;
+}
+
 /**
  * Shared functionality for view/edit forms
  *
@@ -212,11 +219,11 @@ const withCopyEdit = (WrappedComponent) => {
                 values_to_copy[key] = this.state.building[key]
             }
             const data_string = JSON.stringify(values_to_copy);
-            const copy = {
+            const copy: CopyProps = {
                 copying: this.state.copying,
                 toggleCopying: this.toggleCopying,
                 toggleCopyAttribute: this.toggleCopyAttribute,
-                copyingKey: (key) => this.state.keys_to_copy[key]
+                copyingKey: (key: string) => this.state.keys_to_copy[key]
             }
             return (
                 <section
@@ -289,3 +296,7 @@ const withCopyEdit = (WrappedComponent) => {
 }
 
 export default withCopyEdit;
+
+export {
+    CopyProps
+};