diff --git a/README.md b/README.md
index 07941e9..13f708d 100644
--- a/README.md
+++ b/README.md
@@ -226,6 +226,12 @@ plugin {
       # 0 = always automatically split horizontally
       # <number> = pixel height to split at
       trigger_height = <int> # default: 0
+     
+      # a space or comma separated list of workspace ids where autotile should be enabled
+      # it's possible to create an exception rule by prefixing the definition with "not:"
+      # workspaces = 1,2 # autotiling will only be enabled on workspaces 1 and 2
+      # workspaces = not:1,2 # autotiling will be enabled on all workspaces except 1 and 2
+      workspaces = <string> # default: all
     }
   }
 }
diff --git a/src/Hy3Layout.cpp b/src/Hy3Layout.cpp
index 6afa1b1..7da1d2f 100644
--- a/src/Hy3Layout.cpp
+++ b/src/Hy3Layout.cpp
@@ -1,5 +1,7 @@
 #include <hyprland/src/Compositor.hpp>
 #include <hyprland/src/plugins/PluginAPI.hpp>
+#include <regex>
+#include <set>
 
 #include "globals.hpp"
 #include "Hy3Layout.hpp"
@@ -165,9 +167,12 @@ void Hy3Layout::onWindowCreatedTiling(CWindow* window, eDirection) {
 		static const auto* at_trigger_height = &HyprlandAPI::getConfigValue(PHANDLE, "plugin:hy3:autotile:trigger_height")->intValue;
 		// clang-format on
 
+		this->updateAutotileWorkspaces();
+
 		auto& target_group = opening_into->data.as_group;
 		if (*at_enable && opening_after != nullptr && target_group.children.size() > 1
-		    && target_group.layout != Hy3GroupLayout::Tabbed)
+		    && target_group.layout != Hy3GroupLayout::Tabbed
+		    && this->shouldAutotileWorkspace(opening_into->workspace_id))
 		{
 			auto is_horizontal = target_group.layout == Hy3GroupLayout::SplitH;
 			auto trigger = is_horizontal ? *at_trigger_width : *at_trigger_height;
@@ -1714,3 +1719,51 @@ Hy3Node* Hy3Layout::shiftOrGetFocus(
 
 	return nullptr;
 }
+
+void Hy3Layout::updateAutotileWorkspaces() {
+	static const auto* autotile_raw_workspaces
+	    = &HyprlandAPI::getConfigValue(PHANDLE, "plugin:hy3:autotile:workspaces")->strValue;
+
+	if (*autotile_raw_workspaces == this->autotile.raw_workspaces) {
+		return;
+	}
+
+	this->autotile.raw_workspaces = *autotile_raw_workspaces;
+	this->autotile.workspaces.clear();
+
+	if (this->autotile.raw_workspaces == "all") {
+		return;
+	}
+
+	this->autotile.workspace_blacklist = this->autotile.raw_workspaces.rfind("not:", 0) == 0;
+
+	const auto autotile_raw_workspaces_filtered = (this->autotile.workspace_blacklist)
+	                                                ? this->autotile.raw_workspaces.substr(4)
+	                                                : this->autotile.raw_workspaces;
+
+	// split on space and comma
+	const std::regex regex {R"([\s,]+)"};
+	const auto begin = std::sregex_token_iterator(
+	    autotile_raw_workspaces_filtered.begin(),
+	    autotile_raw_workspaces_filtered.end(),
+	    regex,
+	    -1
+	);
+	const auto end = std::sregex_token_iterator();
+
+	for (auto s = begin; s != end; ++s) {
+		try {
+			this->autotile.workspaces.insert(std::stoi(*s));
+		} catch (...) {
+			hy3_log(ERR, "autotile:workspaces: invalid workspace id: {}", (std::string) *s);
+		}
+	}
+}
+
+bool Hy3Layout::shouldAutotileWorkspace(int workspace_id) {
+	if (this->autotile.workspace_blacklist) {
+		return !this->autotile.workspaces.contains(workspace_id);
+	} else {
+		return this->autotile.workspaces.empty() || this->autotile.workspaces.contains(workspace_id);
+	}
+}
diff --git a/src/Hy3Layout.hpp b/src/Hy3Layout.hpp
index 885e1b6..5aef41a 100644
--- a/src/Hy3Layout.hpp
+++ b/src/Hy3Layout.hpp
@@ -9,6 +9,7 @@ enum class GroupEphemeralityOption {
 };
 
 #include <list>
+#include <set>
 
 #include <hyprland/src/layout/IHyprLayout.hpp>
 
@@ -139,5 +140,14 @@ private:
 	// nullptr. if once is true, only one group will be broken out of / into
 	Hy3Node* shiftOrGetFocus(Hy3Node&, ShiftDirection, bool shift, bool once, bool visible);
 
+	void updateAutotileWorkspaces();
+	bool shouldAutotileWorkspace(int);
+
+	struct {
+		std::string raw_workspaces;
+		bool workspace_blacklist;
+		std::set<int> workspaces;
+	} autotile;
+
 	friend struct Hy3Node;
 };
diff --git a/src/main.cpp b/src/main.cpp
index 5185f2e..138ec7f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -43,6 +43,7 @@ APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle) {
 	CONF("autotile:ephemeral_groups", int, 1);
 	CONF("autotile:trigger_height", int, 0);
 	CONF("autotile:trigger_width", int, 0);
+	CONF("autotile:workspaces", str, "all");
 
 #undef CONF