The San Francisco Victorian pictured in the opening credits of “Full House” and its spin-off “Fuller House” is going on the market next week, probably at a price just under $6 million.

The home at 1709 Broderick St. in Lower Pacific Heights has been gutted, seismically upgraded and completely renovated since Jeff Franklin, the creator of the TV shows, purchased it for $4 million in 2016.

The home attracts a steady stream of tourists even though its interior was never shown in either version of the sitcom. Many people think the “Full House” house is one of the “painted ladies” on Steiner Street, which also appeared in the opening credits as the Tanner family picnicked in nearby Alamo Square Park.

At an open house primarily for agents Friday, everyone agreed that would be a positive or negative depending on the buyer.

Shortly after he bought it, Franklin redid the exterior to match its “Full House” days, down to the distinctive red doors. Those doors have been removed and shipped to Los Angeles, although a buyer could write them into an offer, said listing agent Rachel Swann of the Agency. The same goes for the plaster handprints of “Fuller House” cast members that are now displayed against the back fence.

The home was updated with modern decor and smart home features such as an iPort and security system. But it still has period features such as crown molding and 11-foot ceilings on the main floor.

“What’s great is it has all the charm you would expect from a San Francisco home, but updated,” said Grant Beggs, an agent with Sotheby’s who was meeting a client there. While some hallways have been removed to create a more open look, “it still has divisions of rooms.”

Swann said Franklin planned to use the house for promotional purposes, and did have one event there with the “Fuller House” cast in 2016. But neighbors “weren’t fans” of his plans. They fought his original remodeling scheme, saying it was intended to make the interior resemble the TV set. Franklin subsequently changed the plans, and the interior today bears no resemblance to the Hollywood set.

Franklin never lived there, but “he said it’s a great house, why don’t we restore it,” Swann said. She said Franklin sank almost $2 million into the home, including fees and carrying costs, after he bought it.

Construction company Amber-Tru created new living space on the ground floor: a bedroom, full bathroom and sitting room. The main floor has the living room, dining room, kitchen and new half-bath under the stairs. Upstairs are three bedrooms and two full bathrooms.

“I think it’s impeccably done,” said Brynna Gianos, who lives in the neighborhood and toured the house Friday with her husband, Nick, and kids, Rory and Auden. “But there’s definitely always a crowd outside. I’ve seen as many as 30.” It got “markedly worse” after “Fuller House” premiered on Netflix in 2016.

If you put “Tanner family house” into Google maps, it takes you to 1709 Broderick.

The show’s fifth and final season airs this fall, and gawkers might lose interest after that.

The home has a one-car garage plus parking pad. The lot, at 3,125 square feet, is “slightly oversized” for San Francisco, Swann said.

Coldwell Banker agent Jeff Silver said that based on its size, celebrity status and neighborhood, which is not as prime as Pacific Heights, it will list around $5.5 million.

Swann had the open house in part to get feedback from agents on pricing. She said that 28 out of 30 agents who toured the home Thursday thought it would list at $5.5 million to $6 million.

If it goes for $6 million, it would set a new high price for the neighborhood, said Jennifer Rosdail, an agent with Keller Williams. “One sold with a ton of renovations for $5.8 million. That’s the highest sale ever in Lower Pacific Heights.”

Swann plans to put the home into the Multiple Listing Service on Thursday, probably at just under $6 million, but isn’t planning a public open house. “It will be shown by appointment only,” she said.

Kathleen Pender is a San Francisco Chronicle columnist. Email: kpender@sfchronicle.com Twitter: @kathpender