How to open a gym, from model to opening day

01/ Starting a gym: the model

Choose the model before the building.

The model decides almost everything after it: the size of site you need, the equipment, the staff and the price.

A budget gym sells access at a low monthly price and needs a large membership base. A boutique studio sells classes at a higher price to a smaller base. A personal-training studio sells coaching time, so the trainers are the product.

Decide which one you can fund and which one your local market lacks. A franchise is a fourth route with its own trade-offs; it is covered under gym franchise.

02/ Site and planning use class

Check the use class before you sign.

In England, the Use Classes Order puts indoor fitness in Class E(d): “indoor sport, recreation or fitness (not involving motorised vehicles or firearms or use as a swimming pool or skating rink)” (Planning Portal, Use Classes).

Because Class E also covers shops, cafés and offices, a unit already in Class E use may not need planning permission to become a gym. Swimming pools sit in Class F2(d), so a pool changes the answer.

Building work, conditions on the existing permission and building regulations can still apply, and Wales, Scotland and Northern Ireland have their own rules. Ask the local planning authority before you commit to a lease.

Beyond planning, test the site for the model: floor loading for free weights, ceiling height for rigs, noise to neighbours, parking and the catchment you need.

03/ Licences and insurance

Music, insurance and the rest of the paperwork.

Playing music in the gym floor, café, reception or classes usually needs TheMusicLicence from PPL PRS, which covers most commercially available recordings and compositions (PPL PRS, fitness and dance).

As soon as you employ staff you must hold employers’ liability insurance of at least £5 million from an authorised insurer, and display the certificate; the fine for not being insured can be £2,500 a day (GOV.UK).

Public liability and professional indemnity are not compulsory in law but most landlords, franchisors and instructors will expect them. Self-employed trainers renting space normally carry their own cover; put that in their agreement.

04/ Equipment and fit-out

Buy for the model, not the showroom.

Equipment follows the model. A budget gym needs volume of cardio and resistance kit; a boutique studio needs the kit for its class format; a PT studio needs a small, versatile set.

Buying, leasing and second-hand each trade upfront cash against monthly cost and risk. Leasing keeps cash for pre-sales and the months before break-even, which is where new gyms most often run short.

Ask any supplier for service terms, delivery lead times and floor-loading requirements in writing before you order.

05/ Pre-sales

Sell memberships before the doors open.

Pre-sales prove demand, fund the opening and give the first month a full floor.

Start with a waiting list and a founding-member price with a clear end date. Move to paid pre-sale once the opening date is firm, and tell buyers when their payments start.

Treat every pre-sale lead as a contact you must be allowed to email: collect consent at sign-up, because the soft opt-in only covers people who bought or negotiated to buy.

Most pre-sale effort is local: paid social in the catchment, a search profile for the site, partnerships with nearby employers and referral from the first members. A gym marketing agency can run that phase; the gym referral programme and corporate gym membership pages cover two of the channels.

07/ The gym business plan

A gym business plan in eight headings.

Our outline, not a lender’s form. Lenders and landlords may ask for their own; this covers what they usually want answered.

The finance heading carries the one number the plan exists to answer: how many paying members cover your monthly costs, and by which month you expect to reach it. Price-setting is covered under gym membership pricing.

08/ How much does it cost to open a gym?

Cost depends on model; yield is published.

There is no reliable published average cost of opening an independent gym in the UK. The ranges quoted online usually come from equipment sellers or software vendors and rarely state a source, so this page does not repeat them. Price your own site, fit-out and equipment with quotes.

What is published is how an established operator earns. The Gym Group plc, a UK low-cost operator, reported average revenue per member per month of £21.60 in 2025, up from £17.60 in 2021, across 260 gyms and 923,000 members at the year end (The Gym Group plc, KPIs; FY2025 results).

Use those as a reference point for scale, not a forecast for an independent site: a chain’s buying power, brand and site selection are not yours.