The couple lived at their first off-grid property in Fairbanks for two and a half years, the last six months of which they shared with their baby daughter.
On the same piece of land, they built a second larger cabin, which they moved into on Christmas Eve in 2003.
They sold the property with both cabins for $125,000, the equivalent of £91,000.
They continued to flip several more properties by buying land, building a log cabin on it themselves and then selling it for a profit.
Brooke works on the property projects with her husband Dave, building cabins from scratch
Girl in the Woods: Brooke has become known for her love of being outside and enjoying the wilderness
Working hard: The couple say that you need plenty of ‘sweat equity’ to make your off-grid property dreams come alive
During this time, they have also become known for their love of the wilderness having appeared on the History Channel TV show ALONE, which takes 10 survivalists and drops them in remote areas of the world to see how long they can survive and live off the land.
At the heart of their property development has always been the concept of, what Brooke describes as, ‘sweat equity’.
She said: ‘It was all sweat equity.
We put all the work into it ourselves, we paid cash for everything and lived in a tent while we built the first cabin.
‘With sweat equity we’ve been able to buy cheap land that needs work, then turn it into a nice piece of property, then flip it when we were ready to move on.
‘This put money in our pocket to buy and build the next thing with cash.
Always cash. No mortgage. In order to do this you have to be reasonable with what you can afford, but it works for us.’
Living off-grid: Brooke and her husband lived in tents while they built some of their wood cabins
The couple’s fourth project saw them buy five acres in Delta Junction in Alaska, where they lived initially in a campervan while they first built a garage that they then moved into — before building a new log cabin.
By now, they had two toddlers and lived without running water.
They eventually moved into the log cabin, which did have running water.
They had bought that piece of land for $11,500 — around £8,500 — in 2006 and sold it with the cabin for $215,000 — the equivalent of £157,500 — four years later.
Brooke explained: ‘A lot of people are not willing to make that sacrifice and do it the hard way.
People see the Instagram picture of the cabin in the woods and say they want it now. But without the sweet equity, it is not rewarding.’
Wider family matters mean Brooke and her husband are currently based in Michigan, in the US, but are continuing with projects so that they still get spells living off-grid and somewhere to head back to when they commit once again to living off-grid full-time.
Brooke explains that what is allowed to be built in America depends on the land, but generally speaking there are few restrictions compared to Britain.
‘There’s so much more freedom here.
If you are in a city, things are more restrictive and will need more permitting and zoning considerations, but that’s not where most people want to build a cabin. There is a lot of rural land that is available for building a small cabin with little to no restrictions,’ she said.