JNB Oneworld Lounges?
 

Hoping for current information on which JNB lounge has access for outbound Oneworld Business flight on Iberia. Research says much new construction going on, so hoping someone has recently passed thru JNB.
Thanks ahead of time for any info.

BA has fairly new lounges at JNB.

The OP is AA Gold/OW Ruby. I'm not certain BA will admit an IB J passenger as they would a BA J passenger.

...although OP states that they are travelling on a business ticket, so I think BA would let them in?

I think in that case, it would be up the IB check-in agent to provide the passenger with some kind of access permission or voucher for a lounge. According to www.oneworld.com, Iberia uses:

Rennies Travel Lounge
Location details: Airside
Opening hours: Daily 06:00-24:00
Operated by a third party on behalf of: Iberia

In the last 12 months, travelling in J on Iberia, I was denied access to the BA lounge on 2 occasions, but given access on the most recent occasion, about 6 weeks ago, without any problems. I can't see how BA can deny access, but they do.

The BA lounge is a new Galleries lounge with a First Class section, and is very nice. The IB lounge is one of those shared contracted lounges, and is not great. You have to pay for wifi too.

Good luck, and give it a go with BA. Maybe bring a printout of the OneWorld lounge access rules from their website.

What a pity that Iberia do not use the Bidair lounge, which I spent some time in recently while waiting for the Virgin Clubhouse to open.

I bought a two-hour pass online in advance but was allowed to stay a bit longer. It was comfortable, with a good bar, free wi-fi and excellent staff. The only let down was the food offering, although this was not a disaster by any means. If you are going to be a long time airside in JNB and are not confident of getting into the BA lounge then you might want to consider buying a pass for this, although I have no experience of the Rennies joint to compare it with.

The Rennies Travel lounge is the Bidair lounge. (Bidvest owns 75% of Rennies Travel.)