diff --git a/pkgs/development/python-modules/flexit-bacnet/default.nix b/pkgs/development/python-modules/flexit-bacnet/default.nix
new file mode 100644
index 000000000000..1fdad51d39b0
--- /dev/null
+++ b/pkgs/development/python-modules/flexit-bacnet/default.nix
@@ -0,0 +1,34 @@
+{
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  setuptools,
+}:
+
+buildPythonPackage rec {
+  pname = "flexit-bacnet";
+  version = "2.2.1";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "piotrbulinski";
+    repo = "flexit_bacnet";
+    rev = "refs/tags/${version}";
+    hash = "sha256-Cy/WHKtJoZWSFOs+9rBYSLqZTF/68WRM1HiYXDyb9KM=";
+  };
+
+  build-system = [ setuptools ];
+
+  pythonImportsCheck = [ "flexit_bacnet" ];
+
+  # upstream has no tests
+  doCheck = false;
+
+  meta = {
+    changelog = "https://github.com/piotrbulinski/flexit_bacnet/releases/tag/${version}";
+    description = "Client BACnet library for Flexit Nordic series of air handling units";
+    homepage = "https://github.com/piotrbulinski/flexit_bacnet";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ dotlambda ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9abd47731678..4745b91ce5d0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4530,6 +4530,8 @@ self: super: with self; {
 
   flexcache = callPackage ../development/python-modules/flexcache { };
 
+  flexit-bacnet = callPackage ../development/python-modules/flexit-bacnet { };
+
   flexmock = callPackage ../development/python-modules/flexmock { };
 
   flexparser = callPackage ../development/python-modules/flexparser { };