"These include further development, subdivision, converting one or both buildings to residential use, or continuing to operate it as a luxury accommodation complex."
The two residences are joined by a connecting hallway but could easily be subdivided, he says. The larger residence has a total floor area of 1360 sq m, plus numerous balconies and decks.
The smaller dwelling is a traditional square front villa with a floor area of 239 sq m which has been used as the owner's residence. Vehicle access to the complex extends along the eastern boundary via a brick cobblestone-paved driveway with parking areas at the rear of the main building.
Mollie's comprises 13 luxury suites, each with its own ensuite and living area, bespoke furnishings and harbour, garden or city skyline views. Tariffs range from $575 per night for the junior suites to $1075 for the top-level penthouse suite. It has two private balconies and panoramic harbour views and comes with its own study, gourmet kitchenette and oversized spa bath.
Other facilities include a fine dining room and restaurant, with a commercial kitchen, separate bar facilities, a library, lounge, meeting suites and a health and beauty spa.
Mollies has hosted a number of overseas celebrities over the years - reputed to have included: Sean Connery, Shania Twain, Jay-Z and Beyonce who like the privacy of small, more intimate establishments in preference to large hotels.
"It has attracted luxury travellers from all over the world, as well as from within New Zealand drawn by the five-star quality accommodation coupled with its superb location," Haydock says.
"Catered corporate and private functions have been a significant part of Mollies' business as well with the picturesque landscaped lawns and terraced gardens able to be used for these events over the summer months."
The larger of the two dwellings dates back to the 1870s when it was built as the home of Archibald Clark, the first Mayor of Auckland in the 1850s.
It has been substantially modernised and extended to the rear over the years.
It was subsequently the Little Sisters of the Poor convent, a boarding house and private home before entrepreneur Mollie Wilson bought it in 1964 and opened the Harbour Bridge Motel.
She built up a very successful business before selling the property to her daughter Frances Wilson and Stephen Fitzgerald in 2000.
They spent the next decade establishing Mollies as a boutique hotel. It built up a strong brand profile with high-end travellers and under their ownership, which ended in 2011, it became a member of Relais & Chateaux, an association of top-class hotels around the world, as well as the only Auckland member of the US-based invitation-only travel club Virtuoso, which specialises in luxury travel.
It made the Conde Nast Traveler Gold list of the world's best hotels in 2011.
Both dwellings are elevated above street level and benefit from a northerly aspect and spectacular views out to the Waitemata Harbour, Auckland Harbour Bridge and North Shore, and back to the Central Business District, says Haydock.
"The property is strategically located on the prestigious northern slopes of Herne Bay, near the border with St Marys Bay, and close to Auckland's CBD and the waterfront.
"This makes it a very desirable location for visitors to Auckland as well as a sought-after residential precinct."
Tweed St is a short residential through road extending between Curran St and Shelly Beach Rd.
"It's in a very central location, within a short distance of the boutique stores and the popular cafe and restaurant scene on Ponsonby Rd and Jervois Rd," says Haydock.