Preheat your oven to 425°F (220°C) and line a rimmed baking sheet with parchment paper.
Pat the chicken thighs completely dry with paper towels to ensure the skin becomes extra crispy.
In a small bowl, whisk together the olive oil, sea salt, black pepper, dried oregano, and garlic powder.
Rub the herb oil mixture thoroughly over the chicken thighs, making sure to get some under the skin.
Place the chicken on the prepared baking sheet and roast for 15 minutes.
While the chicken starts roasting, toss the broccoli florets with a squeeze of half the lemon and a pinch of salt.
Remove the baking sheet from the oven, arrange the broccoli around the chicken, and place the remaining lemon halves on the tray.
Return to the oven and roast for another 15 to 20 minutes until the chicken reaches an internal temperature of 165°F and the skin is golden brown.
Let the chicken rest for 5 minutes before serving with the roasted broccoli and a final squeeze of the charred lemon.