diff --git a/docs/build.md b/docs/build.md
deleted file mode 100644
index 47d45f233ed31ae84cb204ad7749248acd656b7b..0000000000000000000000000000000000000000
--- a/docs/build.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Building CiviCRM
-
-TODO:
-
--   Nightlies vs gitify vs civibuild
--   gitify
--   civibuild (https://github.com/civicrm/civicrm-buildkit/blob/master/doc/civibuild.md)
diff --git a/docs/customize.md b/docs/customize.md
deleted file mode 100644
index 4f106477decc415a6e8d0a94a4bca6509e00354b..0000000000000000000000000000000000000000
--- a/docs/customize.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Customizing CiviCRM
-
-TODO:
-
--   *(Requirements: Don't need full git install)*
--   *(When possible, link to User/Admin Guide or other existing docs instead
-    of giving details.)*
--   Custom fields, profiles, option groups, etc
--   webform_civicrm
--   Extensions (download+install; web and CLI).
--   (Maybe) CiviRules
--   (Maybe) CSS override
--   (Maybe) *.extra.tpl
diff --git a/docs/extend.md b/docs/extend.md
deleted file mode 100644
index ca1c5e05d88c39af897637c4450993df7723304f..0000000000000000000000000000000000000000
--- a/docs/extend.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# Creating CiviCRM Extensions
-
-This page is moving. See [writing extensions](/extensions/basics).
-
-<!--
-TODO:
-- delete this page after redirection in place
--->
diff --git a/mkdocs.yml b/mkdocs.yml
index a468f92625fd54c8391b9337a2468346877ef502..981c7ac780ce02e20bddcd40ff5fadc27f7afa37 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -73,12 +73,8 @@ pages:
   - Using hooks: hook.md                        # page-tree = NEED_PAGE_MOVE to /hooks/usage.md
 - MISC TO REORGANIZE OR DELETE:
   - Extension advanced patterns: extensions/advanced.md
-  - Customizing Screens: extensions/customize-screens.md
   - Extensions files: extensions/files.md
   - Some of the hooks: hooks-db.md
   - Requirements: requirements.md
-  - Build: build.md
-  - Customize: customize.md
-  - Extend: extend.md
   - Develop: develop.md
   - hookref-old: hookref-old.md