In Maryland, the cost of a kitchen addition generally ranges between $75,000 and $150,000 or more, depending on the size of the project, the complexity of the design, and the quality of finishes. On a per-square-foot basis, most homeowners can expect to spend between $250 and $500 per square foot for a professionally built kitchen addition. While these figures may seem high, they reflect the extensive structural, plumbing, electrical, and finish work required for one of the most complex and valuable rooms in the home.
Why Homeowners Invest in Kitchen Additions
Kitchens are often described as the “heart of the home,” and for good reason. Many Maryland families outgrow their existing layouts, finding them too small for modern needs. A kitchen addition creates:
- More space for family gatherings and entertaining
- Improved functionality, such as islands, breakfast nooks, or open-concept layouts
- Upgraded features like custom cabinetry, luxury appliances, and smart storage
- Better traffic flow between the kitchen and adjoining living spaces
Because kitchens are so central to daily living and resale value, expanding them is both a lifestyle upgrade and a long-term investment.

Key Cost Factors
1. Size of the Addition
The number of square feet added is the single largest cost driver. A modest 100-150 sq. ft. bump-out may be on the lower end of the spectrum, while a larger 300-400 sq. ft. addition can more than double the overall cost.
2. Structural Requirements
Expanding outward requires new foundations, framing, roofing, and seamless integration with the existing home. Complex rooflines, difficult soil conditions, or major reconfigurations raise costs significantly.
3. Plumbing and Electrical Systems
Kitchens are utility-intensive spaces. Running new plumbing lines, upgrading the electrical panel, and installing multiple appliance circuits all add costs that aren’t present in simpler additions.
4. Cabinetry and Finishes
Cabinetry often accounts for 30–40% of a kitchen budget. Choices between stock, semi-custom, and fully custom cabinetry can swing costs widely. Countertops, backsplashes, flooring, and lighting also influence the final number.
5. Appliances
Appliance packages can range from $5,000 for standard options to $30,000 or more for luxury, professional-grade equipment.
6. Design and Permits
Architectural design, engineering, and county permits are essential parts of any addition project. These soft costs typically make up 10–15% of the overall budget.
Typical Cost Ranges in Maryland
- Small kitchen bump-out (100–150 sq. ft.): $75,000–$95,000
- Medium addition (200–300 sq. ft., mid-range finishes): $100,000–$130,000
- Large addition (350+ sq. ft., luxury finishes): $140,000–$175,000+
These ranges assume professional design and construction and finishes that align with Maryland’s housing market.
Other Considerations
- Resale Value: Kitchen additions can recoup 60–70% of their cost at resale, depending on location and market conditions.
- Timeline: Most projects take 3–6 months from design through construction, with some extending longer for custom builds.
- Daily Life Impact: Families often need a temporary kitchen setup during construction.
- Zoning and Setbacks: Maryland counties each have specific rules about how far homes can expand outward, which can limit addition size.
Cost-Saving Strategies
- Opt for semi-custom cabinetry instead of fully custom.
- Choose durable mid-range countertop materials.
- Keep plumbing and appliances in their current locations where possible.
- Prioritize must-have features first and add luxury upgrades selectively.
- Partner with an experienced design-build contractor who can streamline the process and prevent costly mistakes.
Planning on building a Kitchen Addition?
The cost of a kitchen addition in Maryland usually falls between $75,000 and $150,000+, with final pricing influenced by square footage, finishes, and structural complexity. While it’s a major investment, the payoff is a more functional, beautiful, and valuable home. At Cornerstone Remodeling, we specialize in guiding Maryland homeowners through every step of planning and building a kitchen addition—helping you balance design, function, and budget for the best possible outcome. If you’re considering expanding your kitchen, reach out to our team to help turn your vision into a space that enhances both daily living and long-term value!



