וְאֵה֣וּד ׀ בָּ֣א אֵלָ֗יו וְהֽוּא־יֹ֠שֵׁב בַּעֲלִיַּ֨ת הַמְּקֵרָ֤ה אֲשֶׁר־לוֹ֙ לְבַדּ֔וֹ וַיֹּ֣אמֶר אֵה֔וּד דְּבַר־אֱלֹהִ֥ים לִ֖י אֵלֶ֑יךָ וַיָּ֖קָם מֵעַ֥ל הַכִּסֵּֽא׃
And Ehud came unto him; and he was sitting by himself alone in his cool upper chamber. And Ehud said: ‘I have a message from God unto thee.’ And he arose out of his seat.
Rashi on Judges
In his penthouse veranda. In the summer penthouse which was airy and cool.
Metzudat Zion on Judges
From the language of upper, the upper construction