Not quite homes under the hammer but similar I was watching 'the great house giveaway' and was struck by the MASSIVE irony of the show.
The point of the show is how no one can afford to get on the property ladder. So the show buys a cheap 'first time buyer' houses at auction (using extortionate bridge loans) and allows to poor people to work themselves to the bone day in and day out for 6 months to to 'flip' the house (rewiring, new heating, new windows, full re-plastering, new kitchen/bathroom, sometime even serious structural work that even pros wouldn't take on etc... which they are suppose to try and source free if they can and fit with the help of family).
All the costs and fees (including the high interest on the massive loan) are added to the house buying cost and if it makes more than that they can keep the profit split between them as a deposit for a house (the lucky ones get about £12k which likely equals the wages they lost, many get nothing).
It will often be a case of:
This house was bought for £120k
It was renovated for £18k (and they'll be called out for not doing it for £8k etc...)
Stamp duty, Auction fees, Estate agent fees, Council tax, Utilities are £11k
Bridge lone repayment is £20k
Profit line is above £169
House sold for £175k
Profit of £6k split between 2 people (but really its more like 8 people when you account for all the family help).
So now a £120k house is approx. 45% more expensive for a first time buyer.
Not only is it massive exploitation (essentially slave labor but with the unlikely promise of getting a house, and it seems clear the fees are not explained upfront) but this 'flipping' houses means they are buying all the cheap houses then using the poor people who can't afford them themselves to do all the work for free to up the price of the housing market so they can't ever afford these houses.
Its like watching lambs to the slaughter or ants in a death spiral.