Heathrow's network of regional logistics hubs is likely to consist of mixed-use sites for construction, which will change throughout the process of the airport's expansion.
Ms Houghton said: "The hubs will be mixed-use and flexible over the duration of the construction programme. We will talk to the experts in the market to see how we best use them and they will likely change over time."
A logistics hub information day will be held by the airport owners on 16 October ahead of the release of an invitation to tender.
Ms Houghton, who joined Heathrow from KPMG earlier this year, said: "I've been critical of things I've worked on in the past where you say market engagement and it's just a bit of market research that isn't particularly accessible."
She said there were 350 delegates at the event from across the UK and ranging from SMEs to major companies.
"We gave all of our suppliers the opportunity to say what they thought of the day and people said it was refreshing to see a client coming out to the market without having already decided what they want beforehand," she said.
"We've got to move away from the approaches ingrained in many organisations and supply chains where it's focused on initial capital cost," she said. "We're focused on procuring for value against a broad range of attributes on a balanced scorecard."
These attributes will include putting factors including sustainability, digital attributes, and health and safety "on an equal footing with the financial rather than the traditional focus on cost".
A detailed procurement strategy will be finalised in March 2020, with bidding to follow afterwards.
The supplier event was designed to "allow confidence" about Heathrow as a client and to show "that this is happening, that we're moving into the delivery phase", she said.
The Court of Appeal will hear challenges to a decision not to allow judicial review of the government's decision to green-light the project, from those behind a rival plan for expanding the airport, councils and environmental groups against the plan.
Before the appeal was launched, a spokesman for Heathrow described a court decision not to allow the judicial review as a chance to continue the "once-in-a-generation project that will connect Britain to global growth, providing thousands of new jobs and an economic boost for this country and its future generations".