The Club at Cottonmill

“An incredibly stylish, spacious spa with lots to try - and admire” (Summer Spy)

FIRST IMPRESSIONS

Sopwell House is a sprawling, whitewashed Georgian manor set in 12 acres of Hertfordshire countryside near the historic city of St Albans. Its period exterior gives little away about the stylish, contemporary hotel inside.

Overnight guests can choose rooms inside the hotel itself or in the Mews, a gated area opposite the hotel with one and two bedroom suites with their own patios and hot tubs. A corridor links spa reception to the main hotel, passing Omboo — the hotel’s bright, Asian-inspired restaurant — along with the Octagon Bar and Conservatory Bar.

WHAT’S ON OFFER?

Spa reception opens into a wide space with several reception desks backed by a retail wall stocking Aromatherapy Associates, Elemis and iS Clinical skincare, alongside F.Y.G (Find Your Glow) candles. Sophie greeted us and handed us a wristband that double up as a locker key.

Our Changing rooms were down a flight of stairs (there's a lift, too), Art Deco in design with emerald-green walls, dark wooden lockers and brass accents. Weighted towel robes, finished with black piping, can be found inside lockers, along with large and small towels (ideal for hair-washing). Four vanity areas have Dyson hairdryers and a multitude of products including cleanser, deodorant and hair styling items, alongside private changing stations, loos and large showers stocked with shampoo, conditioner and shower gel.

On the ground floor (there is a dual-level spa), three experience showers sit alongside a more-spacious-than-most salt steam room and sauna, as well as full-length loungers and swing seats to relax on between heat rooms. You'll find the main 14.5-metre indoor swimming pool here too.

Step outside into the Spa Garden — reached along a corridor of modern artwork and down a glass staircase — and you’ll find a sunken garden of fountains, reeds and a network of small waterways, several double cabana beds, sunken two-to-four person hot tubs and a larger hydropool. The space comes into its own after dark - settle into one of two squashy sofas in front of a flickering fire; watching the sunset from here was a genuine highlight - even on a full spa day, it never felt crowded.

One floor up, the Whisper Room pairs upright basket seating with twelve full-length lounge beds — arranged as singles or brought together as doubles, each with its own side table — around a gas fireplace with daytime views over the grounds. The panoramic sauna runs at 65°C with 10–20% humidity, while the botanical steam room sits at a gentler 40–42°C and 80–90% humidity.

Elsewhere on this level you’ll find Laconium marble heated beds, wicker chairs with drink tables, and the Rose Relaxation Room, where wide beds each have their own comfort console and a herbal tea list.

At the far end, the Deep Relaxation Room is a separate, darker space with six colour-changing pods: lie back and watch the shades rotate while the bed top gently pulses in time with calming music.

As if that wasn’t enough, a fully-equipped gym sits alongside The Studio, which runs a full class timetable through the week — Pilates, Barre Fitness, Tabata, Dance Fit and Group Cycling alongside several styles of yoga, including Vinyasa Flow.

TELL US ABOUT YOUR TREATMENT

We tried the Cottonmill Upper Body Bliss (60 minutes, from £130).

My therapist, Claire, met me in reception and led me to a treatment room where I was offered a choice of music (chilled please) and Elemis oils (Frangipani, the combination of coconut with Tahitian blossom smelt unmistakably like a holiday).

The treatment opened with a foot cleanse using warm flannels, before moving into a back massage from the waist up, taking in the arms. Claire picked out genuine tension in the neck, upper shoulders and between the shoulder blades, and made this the focus of the massage.

Turning over, Claire asked if I’d like oil incorporated into the scalp massage (yes please) and worked the same Frangipani oil through my hair — good, Claire noted, for hair strength as well as scalp relaxation.

A mini facial followed: a cleanse and moisturise using the Pro Collagen range, and a lavender eye pillow. The bed was then lowered gently at the end, with time to sit up in your own time rather than being rushed back into the day.

After coming to slowly, Claire led me through to the Rose Relaxation Room and offered me to choose from the extensive list of herbal teas, settling eventually on fragrant jasmine blossom.

FOOD FACTS

Lunch is taken in The Pantry with its wooden floors and tables paired with blue leather-seated chairs against a teal-and-blue backdrop; backlit shelving of quirky ceramics and glassware, and plenty of green plants keeping things light throughout. Background music keeps the ambience relaxed, and a wide range of table sizes suits solo diners as comfortably as groups.

Lunch is bookended by a buffet of starters (think smoked salmon, grilled chicken, anchovies, quinoa, hummus, grilled broccoli, green beans, falafel, olives, mixed leaves and Caprese salad) and desserts (fresh fruit, vegan cakes and raspberry Panna Cotta) with a main course cooked to order: a choice of roast salmon, pan-fried fillet of bream, a plant-based burger, or roast chicken supreme. We opted for the bream, pan-fried to a golden finish with a sauce vierge that complemented it well; the Tenderstem broccoli alongside was the right side of al dente for us.

That evening, dinner came via room service: a beautifully roasted salmon fillet with a crisp Caesar salad and a side of golden, well-seasoned fries, finished with a rich, tangy blueberry cheesecake. A genuinely substantial, satisfying meal, and delivery was impressively quick. Wine by the glass runs from Taittinger Champagne to Sopwell’s own Cava and Prosecco.

SWEET STAY?

We stayed in Room 115, a Corner Suite with its own balcony, dressed in light teal-green with silver accents and embossed material walls, and anchored by a full-size forest tapestry. The king bed’s modern, three-tone leather headboard was paired with six deep pillows and bolster cushions, while a sandstone-and-sage chaise and a swivel love seat with a bronze-legged glass coffee table filled out the seating. The balcony was a genuine surprise — properly furnished, with comfortable seating and deep cushions, looking out over the grounds to trees and fields beyond.

Use the Nespresso machine for a really decent cup of coffee - or boil the kettle for a selection of Newby herbal teas - and enjoy with Belgian chocolate or ginger biscuits. The minibar contains Sopwell House’s own London Dry Gin, Sapporo beer and soft drinks.

The bathroom’s freestanding bath, with brass overhead attachment, is a thing obviously beauty, with full-size Elemis toiletries for bathing (we noticed the quiet sustainable nod in the form of Who Gives A Crap toilet roll). A stack of quality travel magazines rounded the room out nicely, making it feel like a destination in its own right.

WE LOVED…

The Spa Garden after dark: watching the sun set from the Vitality Pools, with the fountains and waterways lit up around us, was the standout moment of the stay.

An unhurried evening: staying in the spa — and the Spa Garden — right through to the evening, then carrying that relaxation straight into in-room dining, let the whole break unwind at its own pace. As a solo traveller especially, that mattered.

Our corner suite did not disappoint.

WHAT BUBBLE RATING DID YOU AWARD THIS SPA?

We awarded Cottonmill Spa the highest Good Spa Guide Bubble Rating of Five Bubble Luxury for a genuinely skilled, attentive treatment, a room that felt like a destination in its own right, and a sense of space that’s hard to find.