Imagine boarding an aircraft where you can work in a private office, exercise with your regular fitness trainer, enjoy a massage, watch a movie in your own cinema, and eventually retire to a full-width bedroom with windows on either side. Now imagine doing all of that without moving between different aircraft, because the room itself changes around you. That is the idea behind Private Sanctuary, an ambitious private aircraft interior concept that turns the enormous cabin of an Airbus A350 into something resembling a flying villa. Rather than filling an aircraft with expensive furniture and traditional VIP amenities, the designers have focused on creating a residential environment that adapts to its owner’s daily routine.
Created by PriestmanGoode’s Private Studio division, Private Sanctuary was unveiled in 2025 and designed specifically around the rear section of an Airbus A350 cabin. The concept leaves shared spaces farther forward while using the full width of the rear fuselage to create a private retreat with windows on both sides. By avoiding the need for a conventional corridor running alongside the suite, the designers have more freedom to arrange furniture, introduce curved partitions, and create unusually spacious living areas. The result is an interior that feels considerably removed from the traditional executive jet cabin, even though it is built around an existing commercial airliner.
An aircraft that changes with its owner’s routine
Private Sanctuary is divided into four main zones, although the real attraction is how easily they can change purpose. The first is an adaptive living room that can function as a lounge, cinema or private gym. Movable seating, panels, integrated lighting and concealed storage allow the space to be rearranged depending on what the owner wants to do. One particularly interesting feature is a screen that could connect passengers with their regular fitness trainer on the ground, allowing them to follow familiar workout routines while flying across continents. It is a rather extravagant way to avoid missing a training session, although the experience would depend on the aircraft’s eventual connectivity system.
A separate private area provides a floating desk inside an illuminated alcove, complete with integrated shelving and storage. It can serve as a conventional workspace before being transformed into a meditation or therapy room with the addition of a massage table. The darker finishes give this area a more intimate atmosphere, making it feel like a private office rather than another section of an aircraft cabin. Further towards the rear is a full-width bedroom and dressing suite, where a central multifunctional unit serves as a vanity with storage before transforming into an entertainment hub with an integrated screen. Even the sleeping arrangement has received attention, with the designers considering the A350’s approximately two-degree nose-up cruising attitude when determining the bed’s orientation.
The bathroom completes the arrangement with a darker, atmospheric design and a distinctive rippled-glass shower enclosure. Its appearance is closer to something found in a boutique hotel or private spa than a conventional aircraft washroom. Across the four zones, the idea is to create an A350 designed around its owner’s daily routine, whether that means a workout with their regular trainer, time at the desk, a massage, a movie or proper sleep. The same cabin can accommodate these activities without requiring the passenger to compromise on space or privacy.
Couture craftsmanship meets private aviation
The interior is also an interesting showcase of specialist materials and traditional craftsmanship. PriestmanGoode collaborated with four studios to develop distinctive finishes, including F/LIST’s F/LAB, which contributed custom Aenigma decorative panels incorporating materials from the wider family’s sustainable material palette. The London Embroidery Studio translated a two-dimensional design into three-dimensional embroidery inspired by antique tapestries, bringing a couture-like quality to the bedroom. Atelier Midavaine and Nusom developed lacquer panels featuring ginkgo leaves collected from the artist’s own garden, dried between book pages and incorporated into the finished surfaces. Nature Squared contributed a feather-based desktop made using discarded feathers from the food industry.
So, how much would such an aircraft cost? PriestmanGoode has not disclosed a customer, price or delivery schedule, and Private Sanctuary remains a concept rather than a completed aircraft. However, according to our estimate, an A350 fitted with this interior could cost somewhere around $550 million. The Airbus A350-1000 itself has a listed price of approximately $366.5 million and is originally designed to carry up to 480 passengers, making the proposed transformation an expensive exercise in replacing passenger capacity with personal space. Private Sanctuary also won the Bizliners / New Concept Offering award at the Elite Wings Aviation Summit 2026, giving the ambitious design some industry recognition. At that price, the appeal is not simply owning a private aircraft, but having an enormous flying residence that can rearrange itself around practically every part of its owner’s life.
