How Much Does a Home Addition Cost in Raleigh & Cary? (2025 Edition)

Adding space to your home is one of the best ways to improve your daily life while boosting your property value. Whether it’s a new primary suite, a kitchen expansion, or even a second story, homeowners in Raleigh and Cary often ask the same first question: “How much does a home addition cost?”

The answer depends on several factors, but with the right architect, you’ll get a clear budget picture before you fall in love with a design you can’t afford.

Typical Cost Ranges for Additions in the Triangle

Based on recent projects in the Raleigh–Cary area, here’s what you can expect:

• Primary Suite Addition (bedroom + bath):
  $200,000–$350,000 depending on size, finishes, and site conditions.

• Kitchen Bump-Out / Expansion:
  $150,000–$250,000 when combined with a full kitchen remodel.

• Second Story Addition (on a ranch or bungalow):
  $300,000–$500,000+ depending on square footage, roof changes, and structural needs.

• Detached Garage or Pool House:
  $120,000–$250,000 depending on amenities, finishes, and utilities.

What Drives the Cost of a Home Addition?

Several factors influence your final budget:

• Size & Complexity – Larger spaces with custom details cost more.

• Existing Structure – Older homes may need upgrades to foundations, framing, or utilities.

• Finishes & Fixtures – Tile, cabinetry, windows, and other selections can shift costs significantly.

• Site Conditions – Sloped lots, tight setbacks, or poor soil add to costs.

• Permitting & HOA Approvals – Some neighborhoods in Cary and Raleigh have strict guidelines that can impact design options and budget.

Why Work With an Architect First?

Most “average cost” numbers you’ll find online are either too generic or misleading. At David Pollard Architect, we approach it differently:

• Design with Real Budgets in Mind – We base estimates on actual construction experience, not just square-foot averages.

• 3D Visualization – You’ll see your addition come to life before making expensive decisions.

• HOA & Permit Guidance – We design with local rules in mind so your project can move forward without costly delays.

Local Example: Cary Ranch Addition

A family in Cary wanted to expand their 1950s ranch with a full second story. Their HOA required strict roofline consistency, and their existing framing needed reinforcement. By planning carefully with us, they knew upfront the project would be around $425,000–$475,000. They avoided the surprise of bids coming in far higher than expected.

Final Thoughts

Home additions in Raleigh and Cary are a significant investment, but when designed with a realistic budget from day one, they’re also one of the best ways to create a home that truly works for your family.

Thinking about an addition? Let’s talk about your goals, budget, and design ideas—and give you a clear path forward.