Studio NOR Revives Beijing's 798·751 Train Street with a Modular Kit of Steel Frames and Converted Carriages

Beijing's 798·751 Park is full of industrial relics that have been turned into cultural venues, but the stretch known as Train Street had stalled. The site began as the coal yard and railway terminus of the 751 Factory. It was later converted into an underground garage, and about a dozen decommissioned carriages were lined up along the tracks on the garage's rooftop plaza before the space opened to the public. The relics stayed, but people stopped coming. Studio NOR, led by Boyuan Jiang, Jingwen Wang and Shuo Yang, was asked to bring the street back to life across roughly 4,000 square meters.

The interesting part is restraint. Studio NOR did not add a landmark. It chose a lightweight, modular micro-renovation: a family of black steel frames that can become shade, deck, planter, tent or display, along with a careful retrofit of the carriages so they can actually be used. The project argues that a dormant heritage plaza rarely lacks image. What it lacks is places to sit, shade, toilets and reasons to stay. We think that diagnosis is correct, and the execution mostly follows through.

A Coal Yard That Became a Backdrop

The archival collage traces the site from working coal yard to arriving carriages to the bare paved plaza that came before this renovation. That last state is the problem in brief. The carriages had become scenery, parked on brick paving with nothing around them to slow you down. Industrial heritage presented like this tends to get photographed once and then ignored.

The survey of existing structures, which covers the tank staircase, the station shelter trusses, the gantry crane beam and the tank frames, shows where the new vocabulary comes from. The gantry crane remains the anchor of the street, and the new entrance plaza, with its concrete bollards and stepped ramp, points straight at it. The designers recognized that the old structures already provided scale and orientation, so the new work could stay small.

A Kit of Parts Instead of a Building

The black steel frames work as a third layer between the carriages and the open plaza. Seen from above, they break the long linear street into rooms without closing it off. Seen from below, slatted grating roof planes tilt at different angles against the sky, so each unit reads as part of a family without being identical to the others.

The colour choice matters. Black steel sits in the same register as the gantry crane, the smokestacks and the rusted rail equipment, so the new pieces read as relatives of the old ones rather than impositions. The diagonal bracing nods to the trusses recorded in the existing structure survey. Planter boxes of fountain grass built into the frames do a lot with little: they soften the hard ground, give the frames a reason to be where they are, and introduce a seasonal rhythm the industrial setting never had.

Grating, Mesh and Shadow

The most effective element here is filtered light, more than the frames themselves. Slanted mesh screens and tilted grating canopies throw striped shadows across the timber decks, and those shadows change through the day. In Beijing, where the plaza bakes in summer, a partial canopy that still lets the sky through is a sensible choice. It gives shade without hiding the industrial skyline you came to see.

At dusk the scheme changes character. Lighting from the planters and the open carriage doorways turns the street into a sequence of low, warm pools rather than one flat floodlit field. With lighting consultant Studio BLRR involved, the night scene looks deliberate: the carriages glow from inside, which is the clearest sign that they are now occupied buildings and not exhibits.

Designed to Be Climbed, Sat On and Run Across

Children feature in many of these photographs, and that is telling. A child climbing a diagonal brace, or running across wet paving past timber steps, is using the architecture for its real purpose. The frames contain benches, the decks step up to carriage thresholds, and the ramps meet the carriage ends at angles that make you want to walk up them. The street now rewards loitering.

Thresholds receive the most care. Timber steps with metal risers lift you to carriage floor level, and angled concrete ramps with railings handle the same change in height where accessibility requires it. Going through the opening of a silver carriage under its steel arches feels like boarding something, and that small piece of theatre is enough.

Carriages Turned into Rooms

Inside, the carriages retain their long corridor proportions. One version is lined in pale plywood with window niches, while another is darker, with curtains and sunlight falling in patches. The detail we like best is the perforated birch plywood shutter that opens beside a carriage window to reveal a fold-down shelf and lit storage. It is furniture-scale design, but it makes a carriage able to host a café counter, a shop or a workshop without rebuilding it.

The event grid makes the strategy's purpose clear. Café tables, an outdoor film screening, a concert and colourful play setups all fit around the same frames and carriages. The exhibition pavilions, with framed photographs and tall cyan text panels, show the frames working as a gallery. A micro-renovation succeeds or fails on how well it can be programmed, and these images suggest the operator has plenty of ways to use it.

Public Restrooms Inside Freight Wagons

Most architects would leave the toilets out of the story. Studio NOR puts them in black freight wagons with a translucent glowing band on top, and marks them with blue and orange signage boxes and illuminated pictograms. This is the most practical intervention in the project and possibly the one that matters most. A public plaza without restrooms cannot hold a family for an afternoon.

The interiors are colour-coded in red and blue tile, with steel washbasin alcoves, storage niches and clerestory light along the corridor. Because the wagon is so narrow, the plan is necessarily a single passage, and the clerestory stops that passage from feeling like a tunnel. The colour scheme also helps with orientation outside, so you can find the right door from across the plaza.

Plans and Drawings

The site plan shows how thin the intervention zone is within the wider industrial block, and the long street plan shows small pavilions scattered along the carriage lines with the gantry crane at the centre. The axonometrics are the core of the project. One shows the modular frame combining into shading, deck, planter, tent and display configurations. The other catalogues the numbered steel joints where angled members meet a post, which is the detail that lets a single system produce so many variations.

The carriage drawings are just as revealing. The cross-sections add an insulated curved roof, layered walls and a new floor build-up while keeping the original wheel bogie visible underneath. The restroom carriage section adds roof glazing and a tiled interior over the same running gear. The carriages are treated as shells to be upgraded, not as artefacts to be sealed.

Why This Project Matters

Industrial heritage parks across China and elsewhere have the same problem: they keep the relics and lose the people. Train Street shows that the fix can be modest and cumulative. A repeatable steel kit, shade, planting, seating, toilets and usable interiors did what the carriages could not manage alone. Scale is the lesson here. A 4,000 square meter site was transformed without a single new building.

There are open questions. Modular frames are only as good as the programming that fills them, and the true test will be how the street performs on an ordinary weekday rather than a festival night. Still, the logic is sound and the details are careful, and the project avoids the usual temptation to monumentalise the past. We would like to see more heritage sites treated as public infrastructure rather than as backdrops.

The 798·751 Train Street Renovation by Studio NOR (lead architects Boyuan Jiang, Jingwen Wang and Shuo Yang), Beijing, China. Area: 4,000 m². Completed: 2025. Client: Beijing 798 Cultural Technology Co., Ltd. Structure, MEP and construction drawings: Shenzhen Hitrus Design. Lighting consultant: Studio BLRR. Photography: Haoyu Ran.

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