Before walls and flooring can be added, the basement must first be professionally framed. Framing an unfinished basement can be very expensive; not only will it require a large amount of labor, but material costs are high as well. If you consider all the lumber your contractor will need to lay, plus crossbeams and studs, you will find that lumber is going to be one of the costlier aspects of the project.
Finished basement on high end house. I designed all of it and spent some time managing the process. Already had lots of windows (walk-out). Used high end materials and design features ( plank laminate flooring with some granite/marble, rope lighting, recessed panels,heavy finish trim molding, recessed lighting, rope lighting, central audio/speakers, full kitchen, full bath,fireplace, zoned HVAC, etc). Took almost 9 months to complete fully. Great finished product.
Maybe it’s just great extra space, a blank palette—there are so many awesome ways you can use the basement. A movie room, game room, family room or kitchenette can provide a special place for the family to bond and have fun. Man caves and/or woman caves have become trendy and there are plenty of modern basement cave ideas available to inspire your own private space.
A finished basement is not always the same thing as a designed basement. Sometimes, the basement begins with the basics: walls, a ceiling, lights, and a floor. Gwen Hefner and husband Micah wanted to turn their tiny, airless basement space into a comfortable mancave. They had the basics to start with. The next step, Gwen says, would be a true test to her design skills.

When it comes to basement remodels, the most costly way is to start with bare bones. If all you have is concrete walls and floors, you need to add framing, electrical, plumbing, flooring and trim. Basement finishing in a newer home that already has plumbing and electrical roughed in, a watertight foundation and some insulation installed—but no final finishes (like drywall or paint or carpet)—usually costs less than remodeling an already finished basement. This is because when you already have a finished basement, the pros will need to do demolition at the beginning of the project, which can add $500–$1,500 to overall costs.
Old homes may suffer from sagging foundation beams as a result of shifting ground or decay and deterioration of the original building materials. Foundation beams can be raised and shored up successfully, but the right tools, like a pneumatic jack, are essential. Depending on how much the foundation beam must be raised, this job may require several days of incremental steps to complete - which means increased labor costs. Hiring professionals is the best option for this job. Expect costs to run about $10,000 for repairs like a shifted foundation.
A luxurious contemporary basement opens to the movie and media room which showcases a drop round tray ceiling, recessed lights, light tone wood flooring and built-in entertainment center which stretches across one wall and doubles as bookshelves, provides extra storage for games, videos and other entertainment technology. A small pantry area provides convenience for food preparation and storage. Classic neutral colors add a sense of well-being, ease and coziness to the room.
In modern homes, game room are starting to become an essential part of the house. The modern basement game room shown in the image above with mood lighting make this area look just like a high end nightclub. Gorgeous cone pendant lights over the pool table are ideal for a focused lighting which are perfect for the game. A stylish hideout for the man of the house and his friends.
Many new homes are built with an unfinished basement. This saves money up front in construction costs and gives a family the opportunity to grow into their home. A lot of people choose to finish their basement in order to add living space for entertaining guests or as a hangout area. No matter what the reason, finishing a basement can come with a considerable price tag. However, it's generally a good investment as a basement remodel fetches 80% to 90% of its investment cost at resale. 
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