To make the interior look stylish and modern, it is not necessary to get rid of all the old furniture. On the contrary.
With its help, you can give your home a unique flavor and uniqueness. You just need to fit it into the new concept correctly so as not to spoil the impression.
Combine the incompatible
To avoid your apartment looking like a flea market with everything jumbled up, you need to combine items correctly. Create combinations that are pleasing to the eye. The trick is to combine light, elegant items with heavy, massive ones.

For example, if you have a heavy oak chest of drawers, place a modern chair with thin legs next to it, and add a glass or metal coffee table to a massive sofa. Do you have an antique wooden table in your kitchen?
Lightweight plastic or metal chairs with openwork backs will help to lighten the dining group. This way the composition will look interesting and balanced.
Accent on antiquity
This technique will be useful for those who have a really old interesting thing. For example, a large mirror in a beautiful frame, a sideboard or a secretary, a carved cabinet or other furniture that takes your breath away. It can be made the center of the composition, framed with modern furniture.
This will create an unusual effect that will be remembered by guests for a long time. After all, modern interiors are mostly just beautiful and are not remembered for anything special. But an antique item will become such an accent that is difficult to forget.
Playing on contrasts
The contrast of old and new looks impressive and harmonious at the same time. For example, you can put a modern night light of an unusual model on an old bedside table. Grandma's chest of drawers can be decorated with abstract paintings or photographs in thin black frames.
An antique table paired with a transparent chair will look unusual. Do you have a beautiful old floor lamp at home? Perhaps it will look perfect with a new sofa or chair.
Change of functions
Things that perform a different function than the one they were created for look interesting in the interior. The most common example is a chest.
It is used as a coffee table, a high bench or a table on the terrace. A bookcase can become a bar, and a bar a bookcase.
To avoid overdoing it, it's best to use the tried and true 80/20 rule. For example, you could furnish a room 80% with modern furniture and fill the remaining 20% of the space with old things.