How Much Does it Cost to Build or Remodel in Littleton or Highlands Ranch?

How Much Does it Cost to Build or Remodel in Littleton or Highlands Ranch?

June 30, 2025

What you need to know before your first call with an architect.

By Mark Noel – Architect, Inc. 

If you’re thinking about remodeling, adding on, or even building a custom home in Littleton or Highlands Ranch, you’re not alone. But for many homeowners, there’s one big obstacle before anything can move forward: not knowing what it costs.

We get it. The last thing you want is to waste time falling in love with an idea you can’t afford. This blog will break down area-specific pricing so you can move forward with clarity, confidence, and realistic expectations.

Area Snapshot: What Homeowners Are Spending

Remodels & Additions

• Average architectural design fee: 10–20% of construction cost

• Typical construction cost: $200–$350 per sq ft

• Common project budgets: $40K–$150K+

Example: A 600 sq ft primary suite addition in Highlands Ranch might cost $150,000 to build and $15,000–$25,000 for full-service design.

Accessory Dwelling Units (ADUs)

• Design fees: $10K–$30K depending on scope

• Build cost: $180–$300 per sq ft

• Permitting & site work: Often adds $20K–$40K

Example: A detached garage ADU in Littleton might run $225,000 total including design and build.

Custom New Builds

• Construction budget: $800K–$1.5M+

• Architectural design fee: 8–15% of construction cost

• Design phase duration: 3–6 months

Example: A $1M custom home in Highlands Ranch might involve a $100K–$130K architectural design scope from concept to permit.

What Affects Your Price?

• Age of existing home – Older homes can require structural upgrades or code updates

• Lot topography – Sloped or tight sites increase complexity

• HOA or jurisdictional rules – May require extra steps (and budget)

• Finish level – High-end materials and built-ins cost more, but may add long-term value

• Scope creep – Vague goals lead to more change orders (and surprise costs)

What You Can Do Now (Without Getting in Over Your Head)

We created our Starter Package for exactly this reason—to give you real answers without overcommitting. Here’s what you get:
✔️ An architectural site visit + consultation
✔️ Ballpark pricing based on real market data
✔️ Concept sketches you can build on
✔️ Guidance on permitting, timeline, and feasibility

It’s a smart, affordable way to get professional input and know your options—before jumping into full design.

We Can Help You Plan With Confidence

The truth is, you don’t need all the answers before you reach out. You just need the right guide to help you sort through them.

👉 Get started with a Starter Package at mnarchitect.com/contact
Clarity is just a conversation away.