City dwellers only have so much space, meaning city goers have no qualms moving into a building that wasn’t necessarily designed to live in. Many buildings in big cities have been repurposed to make room for apartments, and the practice has emerged as one of the most popular trends in the rental market. Developers have also gotten creative with new buildings, breaking the mold from the traditional floor plan. From converted warehouses and churches-turned-apartments to “micro” buildings, the following are five for the most unusual buildings to call home.

We’ve also thrown in some advice and practical decorating tips for these unconventional apartment spaces. At first, they may feel daunting to decorate, but they can easily be transformed into truly unique, one-of-a-kind residences.

1. Warehouses and factories

Living in former warehouses and factories has become a staple of New York real estate, given that the city is no longer a hub for industrial and manufacturing businesses. Today, nearly all of the warehouses that once housed everything from breweries to chocolate manufacturers have been converted to other uses, much of it residential. The high ceilings and gigantic windows initially appealed to artists searching for large, cheap studio spaces back in the 1970s and ’80s. Over time, artists worked with the city to legalize these old warehouses for residential use. It turns out, the interior details that artists were initially drawn to makes for good real estate, as loft apartments have come to command big bucks.

How to decorate: Well-preserved lofts offer a wealth of appealing interior details: exposed ceiling beams and brick, interior columns, wood floors, and soaring ceilings. You shouldn’t do much to overwhelm it. Nothing looks better in a loft apartment than low-key, comfortable leather furniture. Of course, the high ceilings offer ample space to hang artwork. You can hang art along the exposed brick with brick clips or anchors, screws and drill bits that are made specifically to work on brick walls. If you’d like to brighten the space, paint the brick white—just clear it with your landlord first.

2. House of worship

Congregations have begun selling off their houses of worship to developers. Sometimes the buildings get demolished, but oftentimes a developer will work with the historic building to modernize the interior. When developers decide to carve out apartments from these holy structures, they’re dealing with challenging interior details like cathedral ceilings and large worship spaces. That means that apartments often have quirky layouts and details, like stained glass, prominent windows, and lofted spaces underneath arched ceilings. Living in a church isn’t for everyone, but it does appeal to people who like having one-of-a-kind floor plans and a blend of modern amenities with historic, religious-themed interior finishes.

How to decorate: In many house of worship conversions, no two floor plans are alike—apartment layouts are very dependent on the original building structure. Be prepared to accept some quirks in the layout that you wouldn’t find in a traditional white box apartment. If you’re lucky enough to score a pad with stained glass windows, let them be the centerpiece of your space. Double or triple-height ceilings also ensure enough space to get creative with furniture and accent pieces.

3. Carriage house

In the past, wealthy New Yorkers had enough room not only to build their own homes but to also construct a place for their horses and carriages to stay. These buildings are known as carriage houses. Today, there is a lot less land to build on, not to mention fewer horses, so New Yorkers have moved into the carriage houses. Many of the structures have been converted into single-family homes, while others were broken up into apartments. Carriage houses don’t offer a ton of square footage to work with and don’t boast any of the typical historic, residential interior details, but you can renovate them to accommodate living spaces in innovative ways.

How to decorate: If a carriage house has any of its original details intact, like wood floors, exposed brick or ceiling beams, do your best to take care of them. Otherwise, a carriage house serves as a blank canvas for interior design. Many of them have been decked out with completely modern finishes. Lofted spaces and open staircases are often common to create different floors without losing any light. Rather than breaking up the carriage house into small rooms, try to maintain the lofty vibe of what was originally designed as a large, open space.

4. Hospital

You might be surprised by the number of former hospitals now occupied full-time by residents. Because nobody’s ever aspired to live in a hospital, developers will completely change up the interiors to feel homey and less sterile. In fact, many former hospitals boast some of the most luxurious apartments in the city.

How to decorate: It may not be easy to hang artwork on large, curvaceous walls, but the spaces are sprawling enough to fit a lot of furniture. Most former hospitals are likely to look no different than your average apartment, with new finishes and nice amenity packages.

5. “Micro” building

The appeal of living in former warehouses may be old news, but this trend is just emerging. Developers have started experimenting with “micro” buildings in which apartments (anywhere from studios to three bedrooms) are designed within tight, highly functional floor plans. Renters have to make the most of compact living spaces, mini fridges, and murphy beds. As a selling point, these new micro developments offer sizeable amenity packages and social events to get renters out of their tiny apartments.

How to decorate: Design is everything when it comes to small spaces. Flexible furniture like murphy beds and expanding tables allow you to create extra space if needed, so it’s not impossible to host guests at your 300-square-foot pad. Storage is also important: Plan to put up a lot of shelving and come up with an organization plan for closets and cabinets. Wall-mounted televisions and shelves will also free up space in the apartment.

Would you consider living in any of these unconventional apartment spaces? Share your thoughts by leaving a comment below.