A sunroom will add more value to your home than a deck, but with a much higher up-front cost. Depending on its construction and function, a sunroom may be counted as additional living space, while a deck is strictly an outdoor feature. Both will increase your home’s value, but the sunroom will have a much bigger effect.

Your maintenance needs revolve around the type of foundation you choose, as well as how you furnish or decorate it. Patios require little else other than the occasional hose-down, but decks and other wooden structures will require annual power washing and sealing. You may also need to restain the wood every two to three years.

Adding a solid roof rather than building a pergola or leaving the space open will make maintenance much easier. Without a roof, you will need to spend more time sweeping, washing, and covering your furniture to protect it from UV bleaching.

Several types of porches are available to meet your needs and style preferences. Some common porch types include:

• Porticos are essentially a roof over a walkway leading to the home's front entrance. 

• Sunrooms are closed-in porches that are an extension of the house with glass or plastic panels that allow optimal sunlight. 

• Wraparound porches extend around the entire home, or at least the front and one side, and offer multiple entrances to the house.

• Back porches are an extension of the home’s floor into the outdoors. These offer more protection and privacy than a deck.

When designing an attached greenhouse, several factors should be considered. These include the orientation and positioning of the greenhouse to maximize sunlight exposure, the structural integrity of the connection to the house, sufficient insulation to regulate temperature, proper ventilation for airflow, and adequate space for plants and pathways. If you’re restricted because of your budget, go with a simpler design to maximize the use of your money.