Lancaster County, PA Home Addition Calculator

Most of the Lancaster County, PA homeowners we talk to have no idea the cost of building some sort of home addition, like a sunroom, family room, master suite or garage. Now there are many different projects that fall under the addition category, and they aren’t just all the same cost of course. You should plan to invest anywhere from $20,000 to $200,000+ depending on the type of room addition project you and your family are planning.



Now I’m sure you are saying, “That is a ridiculously big range... What about my sunroom?”… or mudroom, or garage, et al.

Answer? We created this Addition Investment Calculator for Lancaster County, PA to help you get a realistic idea of what you should plan on investing in your specific room addition project.

Major Investment Calculator Factors: To get a clearer idea of where your project may fall in the range below, you must consider a lot of different things. The following are just some of the factors that typically affect the cost of adding on to your home.

Size: The first major investment consideration is the square footage you envision on your project. No matter which project you are planning, bigger will always require a higher investment.

Exterior Finishes: The type of siding you choose plays an important role on the cost of your addition. Also, your door styles, roofing material, and any exterior lights you want will add to the bottom line.

Interior Finishes: Inside, there are a lot of ways to increase your position on the addition calculator below. What are we going to need? The type of flooring; total number and sizes of windows; trim work? If you are adding a kitchen, bathroom or other family area, you may need to choose cabinets, fixtures, countertops, tub material, paint and/or extra outlets.

Types of Additions:
Sunroom: $20,000 – 70,000+

Mudroom: $15,000 – 35,000+


Family Room: $50,000 – 70,000+

Bathroom Addition: $35,000 – 70,000+


Kitchen Addition: $35,000 - 100,000+

Garage w/ or w/o In Law Quarters upstairs: $50,000 – 140,000+
Additional garage building considerations: 1 story or 2? # of windows and entry doors? Number and style of garage doors? Finished drywall inside? In-laws quarters: bathroom and kitchen finish/appliance considerations?

Master Suite: $100,000 – 200,000+

2nd story: $150,000 – 200,000+

About this calculator:
• These estimated numbers are based on our long experience in the Lancaster County, PA remodeling field and Remodeling Magazine’s 2011-2012 Harrisburg, PA Cost vs. Value Report.
• All additions are structural buildings, meaning they require building permits, foundations must be dug and poured, Township inspections, etc.

These price ranges are very large, so contact us to get an exact quote on your Lancaster County, PA home addition! We can also help you with financing, design and floor plans.