Startup business consultant here! I also attended classes at a similar space with my little one 12 years ago.
It doesn't work as a bootstrapped business model because of competition, lack of customer "stickiness" and cost.
After 9 or 12-months your customer doesn't need you anymore. So you have to constantly be marketing.
At the same time, there's competition from NCT, NHS, online communities and the ultimate foe: doing nothing.
Energy and rent will be high. As Will salaries. You'll have to invest in aesthetics/interiors because people want a premium experience.
Marketing a place like this will also be time consuming and costly.
And this all assumes you live in an affluent are where people have disposable income to invest in such services.
I'm in Surrey and, as I said, it wasn't viable here and those were the times of 1% interest rates and banker bonuses.
If you had between £100k - £250k in seed capital (excluding rent) you could take a shot.
These are low ball numbers though - from experience I'd say you need £300k - £500k to give you 18-24 months of runway before becoming profitable. You wouldn't be able to pay yourself more than £15k though, it will have to go into the business.
You could use the Brighter Spaces model where you're effectively subletting space to the folks who deliver the services you described.
They bring their own customers and you're the property manager/marketing.
This means you'll need to market to BOTH practitioners AND customers in the first instance as this is a marketplace model for all intents and purposes.
If you're looking to move away from midwifery there are other options.
For example, I helped a former midwife set up a "mental fitness" and coaching service that is delivered directly to midwives via local trusts. It solves the problem of retention and burnout.
You could also investigate women health tech platforms that connect the dots between practitioners like yourself and affluent people who want private healthcare.
The US market would be good for this as they are used to paying out of pocket and midwives aren't easy to find but there's a demand for less medicalised pregnancy care.
So yeah, there's my two cents 😝