Adaptive Reuse of Industrial Heritage Buildings: How to Read an Old Mill

Adaptive reuse is the practice of giving an existing building a new purpose while keeping the parts that make it worth keeping. For an industrial building such as a mill, that means working with its structure, its light and its traces of use, instead of clearing the site and starting again. The skill lies in reading the building before deciding what it should become.

I’m Hiba Zeineddine, a designer and researcher. This article explains how I think about reuse, using general principles that apply to any old factory or mill, and points to the silk mill study published on this site.

Updated for 2026.

What adaptive reuse asks of a designer

Reuse changes the question. A new building starts from a blank site and a brief. A reuse project starts from something that already has a shape, a history and a set of constraints, and the brief has to fit inside it.

That reversal is uncomfortable, and useful. The building tells you what it can do easily and what it resists. Working against its logic is possible, but it costs more than working with it, in effort and often in character.

It also means the designer’s first job is to listen. Before proposing anything, you learn what is there: how it stands up, how light enters, how people once moved through it, and what has been added or removed over time.

Read the building before you design

I find it useful to read an existing building in four layers. Each one narrows what a sensible new use can be.

Structure

Look at how the building carries its weight. Wide column grids, thick masonry walls and long spans set the possible room sizes and openings. Industrial buildings often have generous, repeated structural bays, which can suit open, flexible uses. Where the structure is unclear or damaged, get specialist advice before drawing a plan around it.

Light and air

Mills and factories were often organised around daylight and ventilation. Note where windows, roof lights and openings sit, and which faces receive sun. These features are assets. A reuse that closes them up loses much of what made the interior pleasant.

Movement

Trace how materials and workers once moved: the entrances, the loading routes, the stairs, the levels. Those paths can become the circulation of the new use. Keeping them helps visitors understand the building’s former life.

Traces

Marks of past use, such as worn floors, fixings in the ceiling, old openings and changes of material, carry the building’s story. Deciding which traces to keep and which to clear is one of the central judgements of the whole project.

See the study itself. The silk mill in Kfarmatta is published on this site as a project about intervening in an existing building.

Old and new: choosing how they meet

Once you know the building, the next decision is how new work relates to old. There is no single right answer, but there are three broad stances, and naming them helps you choose deliberately.

Blend. New elements imitate the old in material and detail so the join is hard to see. This can feel seamless, but it risks confusing what is original and what is not.

Contrast. New elements look clearly new: a different material, a lighter touch, an honest join. This lets the old fabric stay readable, and it is a common approach when the old fabric matters.

Insert. The new use sits inside the old shell like a piece of furniture, touching it lightly and leaving the existing walls largely untouched. This can suit fragile buildings, and it keeps the intervention reversible.

Whichever you pick, be consistent, and be able to explain why. A mixed approach applied without a reason tends to look like indecision.

Choose a use the building can carry

A good new use fits the building’s proportions, not only a client’s wish list. Deep, wide floor plates suit workshops, studios and gathering spaces better than small private rooms. Long, narrow buildings suit linear programmes.

Ask what the surrounding area lacks. A reused building can become a place people use in the daytime and in the evening, which returns it to public life. That link between old buildings and public space is what draws me to reuse in the first place: the building becomes a reason for people to be together.

Be cautious about any use that demands heavy alteration. If a programme needs the structure removed, the openings blocked and the traces cleared, the building is being used as a shell for something that could have been built anywhere.

Recording and sharing a building’s story

Reuse is not only about walls. Buildings carry stories that can be lost if they are not recorded, and part of the work is making those stories available to more people.

The site also hosts an augmented-reality and 360-view platform, which starts with the same silk mill. It approaches heritage from another direction: instead of changing the building, it lets people explore it and its story through a screen.

The two complement each other. Design changes what a building does next, while a digital record keeps its earlier life visible. Neither replaces the other, and together they widen who can take part in a building’s future.

Frequently asked questions

What is adaptive reuse?

Adaptive reuse means giving an existing building a new function while keeping its valuable features, in place of demolishing it. The new use is fitted to the structure, light and layout already there. It is common with old factories, warehouses and mills, where large open interiors suit new programmes such as workshops or public gathering spaces.

Why reuse an industrial building instead of building new?

Reusing keeps the character and memory of a place, and it keeps the structure that already stands. It also anchors a neighbourhood’s story in something people can see and enter. Whether it is the better choice depends on the building’s condition and the intended use, which is why the reading stage matters.

How do you decide what to keep in an old building?

Start by reading its structure, light, circulation and traces of past use. Keep what carries meaning or makes the interior work, such as spans, openings and marks of the building’s former life. Remove what blocks the new use without adding value. Every choice should be explainable, so record the reasons as you go.

Should new additions match the old building?

Not necessarily. Matching hides the difference between original and new, while contrast keeps the old fabric readable. A light insertion can also leave the existing walls alone. The right stance depends on the building’s condition and value. Whichever you choose, apply it consistently and be ready to explain it.

Can a digital platform help preserve a building’s story?

It can complement physical work by recording a building and letting people explore it remotely. An AR and 360-view platform does not protect the structure, but it keeps the building’s story reachable. It works best alongside careful design, not as a replacement for it.