The question everyone asks second
The first question is usually: “Can I build on my land?” The second is: “How much will it cost to find out?”
It's a fair question. Nobody wants to spend money just to learn they need to spend more money. But here's the framing that matters: a feasibility study is the cheapest way to prevent the most expensive mistakes in land development.
Why there's no single price tag
Feasibility study costs in Washington vary. That's not a dodge. It's because parcels vary.
A flat, two-acre lot in an established area near Olympia with sewer access and confirmed utilities is a simpler evaluation than a steep, 10-acre parcel in rural Whatcom County with no road frontage, no power, and potential wetland features.
The first might take days of research and a site visit. The second might need coordination with multiple agencies, additional data gathering, and more detailed analysis.
What drives the cost
Several factors affect feasibility study pricing:
Parcel complexity. Size, terrain, and the number of potential constraints all affect how much work goes into the evaluation. A parcel with steep slopes, wetland indicators, and no utilities takes more time than a serviced suburban lot.
County requirements. Some Washington counties have more complex critical area regulations, stormwater requirements, or environmental review processes. King County and Snohomish County tend to have more layers than smaller rural counties, though rural counties can have their own complications around access and utilities.
Existing information. If the parcel already has a survey, perc test, or prior environmental assessment, the study can build on that data instead of starting from scratch.
Scope of evaluation. A basic zoning and constraints review costs less than a full study that includes septic evaluation, utility research, environmental screening, and a detailed buildable envelope analysis.
When comparing feasibility study quotes, ask what's included. A lower price that only covers a zoning check won't tell you whether septic works, whether utilities are accessible, or whether environmental constraints will eat your buildable area. You want the full picture, not just a piece of it.
The cost of not getting one
Here's where the math gets interesting.
Architectural plans for a custom home in Washington typically run $10,000 to $50,000 or more depending on complexity. Permit application fees vary by county but can run $5,000 to $15,000 or more with permitting and coordination. Engineering studies add another several thousand.
If a site issue surfaces after you've invested in design and permits, you're either redesigning (which costs more) or walking away from what you've already spent.
A feasibility study costs a fraction of any one of those line items. It's the cheapest form of insurance you'll find in the construction process.
What you should expect to receive for the cost
A properly scoped feasibility study — as detailed in our guide on what a feasibility study includes — should give you:
- Confirmed zoning and land use status.
- Septic feasibility assessment (or sewer connection evaluation).
- Utility access status and estimated extension costs if applicable.
- Environmental and critical area screening.
- Access and road evaluation.
- Slope and soil overview.
- A clear buildable envelope showing where on the parcel a structure can go.
- Written findings you can share with architects, engineers, and lenders.
If a provider can't tell you what's included in their study, that's a red flag. You're paying for answers. You should know exactly which questions are being answered.
A feasibility study report should be something you can hand to an architect or engineer. If it's verbal-only or a quick email summary, it's not doing its job. Documented findings protect you during design, permitting, and even lending conversations.
How MKG Construction prices feasibility studies
MKG Construction provides feasibility studies with transparent, milestone-based pricing. You'll know what you're paying for before we start, and there are no hidden fees along the way.
Pricing reflects the actual scope of work for your parcel. Simple sites cost less. Complex sites cost more. We'll tell you upfront what's involved so there are no surprises.
The goal isn't to sell you the most expensive study possible. It's to give you the evaluation your specific parcel requires — nothing more and nothing less — so you can make your next decision with confidence.
Curious what a feasibility study would cost for your Washington parcel? MKG Construction gives you a clear scope and transparent pricing before work begins. No hidden fees. Milestone-based payments. Real answers about your land.
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