I'm tired of the BBC spouting off definitive legal opinions in its own voice:
The settlements are illegal under international law, although Israel disputes this.
Attributing this opinion to specific people, organizations, or even "the international community" wouldn't be a big deal. To better understand why "Israel disputes this" (i.e., disputes the BBC), see Eugene Kontorovich, Mitchell Bard, Eugene Rostow, and Jeffrey Helmreich, among others.
If the Beeb wants to weigh in against settlements in its own voice, here's one throwaway line that makes sense — because it clearly labels the BBC's view.
Settlements may be legal in international law, but the BBC disputes this.