QD Design is a HUB-certified architecture and MEP engineering firm in Cypress, Texas that designs spas, salons, med-spas, and boutique fitness studios across Houston, Pearland, Katy, and Dallas–Fort Worth — architecture plus sealed mechanical, electrical, and plumbing permit sets under one contract. Wellness spaces look simple on a lease plan and are not: humidity, hot water, ventilation, and quiet are engineering problems, and franchise timelines don’t wait for two firms to coordinate.
What a Spa or Salon Permit Set Includes
- Architecture: treatment-room and station space planning, B-occupancy egress analysis per IBC 2021 that survives privacy-driven layouts, finish documentation, and TDLR/TAS accessibility registration for routes, stations, and restrooms.
- Mechanical: humidity-balanced HVAC for treatment rooms, saunas, and shower areas per IMC 2021; salon-grade ventilation and exhaust for treatment off-gassing at lash, nail, and chemical-service stations; and for fitness, ventilation sized to group-class occupant density and heat load — well above typical retail rates.
- Electrical: equipment circuits for treatment and fitness gear, color-critical lighting at service stations, quiet-space considerations in circuiting and equipment placement, lighting power per IECC 2021, and distribution per NEC (2020 or 2023 by jurisdiction).
- Plumbing: high-demand hot water — the defining plumbing load of massage and spa concepts, sized per IPC 2021 water-heating provisions — plus multi-station sinks, shower and locker areas, and hydrotherapy or wet-area drainage.
Why One A/E Firm Beats a Separate Architect and Engineer
Spa and salon layouts are driven by privacy and experience: enclosed treatment rooms, dim corridors, back-of-house circulation. Every one of those choices fights egress, ventilation routing, and acoustics — so the floor plan and the MEP have to be designed together, not sequentially. At QD Design they are. On our Hand & Stone spa in Pearland, having the architect and MEP engineer under one roof eliminated the redesign loops that privacy-driven plans usually trigger; the same client came back for their second location. Franchise work sharpens the point: a prototype like Leah Lash Studio has to be documented so the next location permits faster in the next jurisdiction, which only works when one firm authors every sheet.
Spa, Salon & Fitness Projects We’ve Completed
- Hand & Stone Massage Spa, Pearland — architecture + MEP plus fire marshal and TDLR coordination: quiet, humidity-stable treatment rooms and high-demand hot-water design. Our second Hand & Stone location — a repeat franchise client.
- Leah Lash Studio prototype, Euless (DFW) — a repeatable 1,040 SF beauty-studio prototype: salon ventilation for treatment off-gassing, color-critical lighting, and multi-station plumbing documented to replicate across future jurisdictions.
- MedSpa & wellness center, Cypress — architecture, civil, and MEP with Harris County review and TDLR registration: humidity-controlled HVAC across sauna, shower, and treatment areas, plus medical-grade equipment power.
- F45 + FS8 fitness studios, Katy — two side-by-side boutique fitness concepts designed in one A/E effort, with county permit applications and TDLR registration managed for both in parallel.
Frequently Asked Questions
Do salons need special ventilation?
Yes. Lash adhesives, nail products, and chemical services off-gas at the station, and codes plus common sense call for ventilation and exhaust that remove those contaminants rather than recirculate them. On the Leah Lash Studio prototype we designed salon-grade ventilation into a 1,040 SF plan so every future location inherits it.
How much hot water does a massage spa need?
More than nearly any other tenant its size — continuous towel service, showers, and treatment prep stack demand across the whole operating day. We size water heating and recovery per IPC 2021 provisions against the franchise’s actual fixture and service schedule, as we did on the Hand & Stone Pearland buildout, so capacity issues never reach opening day.
What’s different about designing a fitness studio?
Occupant density and heat. Group classes pack high heat load into small footprints, driving ventilation rates and electrical capacity well above typical retail. On the F45 and FS8 studios in Katy we designed both suites together, which kept shell coordination clean and let the two permits move in parallel.
Can you design our franchise prototype so future locations permit faster?
That’s exactly what prototype design means to us: every decision documented to replicate. Space plan, ventilation approach, lighting, and plumbing standards travel to the next jurisdiction; only the site-specific items get re-engineered. We built the Leah Lash Studio prototype on that model, and our repeat Hand & Stone work shows the approach holds.
Send us your floor plan — you’ll have a fee proposal within one business day.