NASA picked Matjiesfontein in the Karoo for one of its three Moon-mission tracking dishes, for its location, weather and existing infrastructure. The other two sites are in the US and Australia.

Private satellite trackers want the same thing: dark, dry, clear sky in the southern hemisphere. US firm Slingshot runs more than 220 sensors at 22 sites, including one in Namibia. None of these networks has confirmed an SA site yet.

Local hosts already exist: SpaceKaroo leases telescope and ground-station stands on Rogge Cloof, a 20,000ha reserve near Sutherland, with power and internet supplied. In 2022, 13 of Sutherland's 24 telescopes belonged to overseas institutions. In California, Sierra Remote charges from about R10,700 a month per telescope (our conversion).

The land is cheap. A 10,986ha sheep farm near Van Wyksvlei is listed at R12 million, about R1,100 a hectare (our arithmetic).

The Play:

List the Karoo land you own or could buy, one line per farm. Score each on sky darkness, clear nights a year, power, internet, road access and distance from the SKA radio telescope's quiet zone, where transmitters are restricted. Each quarter, add which trackers announced new southern sites. A farm that ticks every box is a site worth pitching.

German investor Patrizia has pledged £1 billion (R21.9bn) for up to 4,000 affordable rental homes across the UK. That is about £250,000 (R5.5m) a home (our arithmetic), mostly for new building. Then it sells them one by one at a markup.

SA Corporate, a JSE-listed fund, runs a cheaper version here: in late 2025 it bought The Parks at Riversands, Fourways, a 2,000-flat rental estate, for R1.671 billion. That is about R835,000 per flat (our arithmetic), at a 9.6% first-year yield (a year's rent after running costs, divided by the price).

It also sells flats from the rest of its portfolio to private buyers. In 2025, it sold 818 for R388 million, at an 8.2% yield. A lower yield means buyers paid more for the same rent. So it buys in bulk cheaply, sells singly for more, and the gap pays for the next purchase.

The Play:

Put your flats in one sheet, one line each: rent, costs, net yield, and what a private buyer would pay for that flat today. Beside it, list whole rental blocks for sale and their yields. Each quarter, find the flats that would sell at a lower yield than a whole block costs to buy. Those are the swaps.

Craft Homes needed buyers for Bryanston Country Estate. Before any branding, it painted a wall on the corner of Grosvenor Road and Bryanston Drive bright red and added a new cryptic line each week. A R50,000 prize went to whoever guessed who was behind it. When Spar and Tabasco tried to claim the wall, Craft played along.

In five weeks, the campaign drew more than 6,400 entries and over 800 people to the launch. The estate has since sold more than R381 million of homes, including 91 freestanding houses. The whole campaign cost R1.31 million before VAT, about 0.3% of those sales (our arithmetic).

That doesn't mean the wall sold every home. It does mean finding buyers cost less than R14,400 for each house sold (our arithmetic), well under the price of one show house.

The Play:

If you're launching a development, log every enquiry in one sheet: the date, the channel it came from, and whether it became a sale. Add what each channel cost. Each week, divide cost by sales for every channel. The cheapest channel per sale gets next month's budget.

Two malls changed hands, one with strings attached. The Competition Commission cleared AJP Group's R397.5 million Killarney Mall purchase, SA's first suburban mall, on condition the parties set up an empowerment fund. The same week, it cleared Constantia Emporium's sale to FPG with no conditions, even though FPG owns eight centres within 15km.

A Sandton building earning R2m a year goes to auction on 22 October. 3 5th Street in Wynberg has 2,637m² of shops, light industry and storage, with an anchor tenant of more than 14 years. Gross rent is R2.14 million a year and net income is R2 million. Broll sells it at noon at The Wanderers.

Office vacancies hit a six-year low. National office vacancy fell to 11.8% in the third quarter, from a 16.8% peak in mid-2022, SAPOA says. A-grade space sits at 9.5% and B-grade at 15.9%. Tenants are coming back, but they still pick the better building.

Cape Town will free 15ha of Foreshore land. The City plans to finish the unfinished bridges with a new link bridge and a tunnel, after more than 50 years. That frees about 15ha around them, some of the last vacant land in the CBD. No cost has been published, and building will take most of a decade.

A new university campus is coming to Paarl. Private Afrikaans university Akademia has secured a 105ha site near Paarl for about 3,000 students. Development rights are still in process, and opening is at least two to three years away. Its Pretoria East campus, for up to 6,500 students, is due for handover in late 2027.

A mining group runs five large sites, with drones flying more than 1,600 hours a month and its patrol vehicles covering over 35,000 km — it’s so much data that no manager can possibly watch all of that.

That’s why they pulled the drones, vehicle GPS and AI camera feeds into one dashboard. It writes an automatic daily summary, then builds long-term pattern views across all five sites, so a problem at one site shows up as a warning for the others.

The result: more than 100 suspects detected and more than 15 arrests.

If you own property you rarely visit, automating your data collection and reporting is perhaps the next most valuable move you can make.

Built. A newsletter by The Awareness Company.