Site Assessment in Dallas, TX
A site assessment for an ADU in Dallas typically costs $350-$950 when done as a standalone service, and it’s the step that determines whether your backyard, side yard, or garage footprint can actually support an accessory dwelling unit legally. At Lodgewick ADU Dallas, we walk your entire property with you, check setbacks, access, utility locations, drainage, and tree coverage, then hand you a written report with a real number for what it will take to build. If you’re wondering whether your lot can handle a detached ADU, a garage conversion, or a JADU (junior accessory dwelling unit, which is a smaller unit under 500 square feet attached to or inside the main house), call us at (361) 204-4652 and we’ll schedule a time that actually works.
This is the first real step in our ADU Design & Permitting in Dallas work. You can’t get a permit without knowing what your site allows, and you shouldn’t spend a dollar on plans before you know whether utilities can reach the build spot without tearing up your whole yard. Russ Delmar, our owner, has walked hundreds of Dallas lots over the years, and he’s the one who reviews every site report we produce.
What most homeowners don’t realize is that Dallas is not one uniform city when it comes to ADU rules. A lot in Lake Highlands has different drainage patterns than one in Oak Cliff. A property near White Rock Lake may sit in a floodplain overlay that changes everything about where you can build. A home in Preston Hollow with mature pecan trees has a different tree-protection conversation than a bare lot in South Dallas. Our job on a site assessment is to catch those differences before they become a $15,000 surprise.
And here’s the commitment we make before we even step onto your property: the price for the site assessment is in writing before we show up. Not a range. Not an estimate that might change. A written number. That’s how every project at Lodgewick ADU Dallas starts, and it’s part of The Kingswell Guarantee, which also covers a real arrival window, a clean job site, and a written guarantee on the work itself.
When You Need Site Assessment
Some homeowners call us already knowing they need a site assessment. Others aren’t sure what they need at all, they just know they want more space. Here are the situations where a formal site assessment is the right first move:
- You’re considering an ADU and want to know if your lot can legally accommodate one. Dallas has specific rules about lot size, setbacks from property lines, and how much of your yard can be covered by structures. A site assessment gives you a clear yes, no, or yes-with-conditions before you invest in design work.
- You want to convert your garage but aren’t sure if the foundation and setbacks will pass. Many Dallas garages built in the 1950s and 60s sit right on the rear property line. Some can be converted as-is under current code; some need to move or shrink. We’ll tell you which bucket you’re in.
- Your utility access is unclear. If your sewer line runs right through the middle of the build area, or your electrical panel is on the wrong side of the house, that changes the budget picture significantly. We map all of this on-site.
- You have significant slope, drainage, or tree coverage on your lot. Parts of Dallas, especially neighborhoods near the Trinity River corridor and areas in East Dallas, have real grade changes. Drainage on clay-heavy Dallas soil is not a minor detail.
- You’ve received a quote from another contractor that felt vague. If someone gave you a number without walking the site, that number isn’t worth the paper it’s printed on. A real number requires a real site visit.
- You’re comparing a prefab ADU versus a site-built one. Manufacturers like Mighty Buildings and Boxabl have specific foundation, access, and crane-clearance requirements. A site assessment tells you whether your lot can even accept a prefab delivery, which changes the entire conversation.
If any of these sound like your situation, call (361) 204-4652. We’ll tell you honestly whether a full site assessment makes sense for you right now or whether a shorter consultation call would answer your question first.
Our Site Assessment Process
Here’s exactly what happens when you book a site assessment with Lodgewick ADU Dallas. No mystery steps, no surprise fees.
- You call us and talk to a live person. Not a voicemail, not a chatbot. Our phones are answered 24 hours a day, 7 days a week. You’ll describe your property and what you’re hoping to build, and we’ll schedule a time that works for your schedule.
- You get a written price for the site assessment before we ever set foot on the property. You’ll know exactly what the assessment costs. That number will not change when our technician arrives.
- We walk the entire property with you. We measure setbacks from all property lines, check the easements, map utility connection points, evaluate access for equipment or prefab delivery, note tree locations and species, check drainage patterns, and look at the condition of any existing structures that might be converted. You’ll be with us the whole time, asking questions as we go.
- We check Dallas-specific requirements. We look at your flood zone designation, zoning district, lot coverage limits, and any historic district overlays that apply to your address. Dallas has different rules in different neighborhoods, and we check the specifics for your exact address, not just general Dallas guidelines.
- We deliver a written site assessment report. This includes measurements, findings, photos, a clear determination of feasibility, and a written price range for the actual build or conversion. You don’t get a verbal shrug. You get a document you can actually use.
- If the site works, we connect you to the design phase. We’ll talk through what comes next in ADU Design & Permitting in Dallas, including drawings, engineering, and permit submission to the City of Dallas. If the site has challenges, we’ll tell you exactly what they are and what fixing them would cost.
Every technician who comes to your site is background-checked and wears a Lodgewick uniform. You’ll always know exactly who is on your property and why they’re there.
Site Assessment Pricing in Dallas
Site assessments in Dallas typically run between $350 and $950 depending on property size, complexity, and what specifically you’re planning to build. Here’s a realistic breakdown of what affects that number and what you should expect to pay.
| What You’re Assessing | Typical Dallas Price Range | What It Includes |
|---|---|---|
| Standard single-family lot, ADU feasibility | $350-$550 | Full site walk, setback measurements, utility check, zoning review, written summary |
| Garage conversion assessment | $400-$650 | Foundation assessment, structural review, utility connection check, code compliance review |
| Lot with drainage issues or significant slope | $550-$800 | Everything above plus drainage analysis and grading review |
| Prefab ADU delivery assessment | $450-$750 | Site walk plus access analysis for manufacturers like Mighty Buildings, Boxabl, or Plant Prefab, crane or forklift clearance check, foundation options |
| Large lot with multiple possible build sites | $650-$950 | Full property analysis of 2+ potential locations, comparative feasibility, written report |
What Affects the Cost
Lot size is the biggest factor. A standard Dallas single-family lot is usually 5,000 to 7,500 square feet, and those are straightforward to assess. But a larger lot in areas like Bluffview or the Kessler neighborhoods takes more time to map. Presence of large trees is another factor. Live oaks and pecans that are common across Dallas add time because we document each one and check the city’s tree preservation rules.
If you’re on a corner lot, you have two front-yard setbacks to consider, which changes the usable build envelope. If your property backs up to a creek or sits in a floodplain, we need to pull flood maps and sometimes bring in elevation data. All of that is reflected in the price we give you before we start, and it never changes after we begin.
Is a Site Assessment Worth the Money?
Put it this way: the design and permit phase for an ADU in Dallas will cost you several thousand dollars. Construction costs for a typical garage conversion run $80,000 to $150,000, and a detached ADU runs $120,000 to $250,000 or more depending on size and finish. Spending $500 to find out your sewer line is in the wrong place, or your build site violates a setback by 18 inches, saves you from spending design fees on something that can’t be permitted as drawn. It’s the cheapest insurance you’ll ever buy on a build.
We also apply your site assessment fee toward the cost of our ADU Design & Permitting work if you move forward with us. So if you’re serious about building, the assessment essentially pays for itself.
What a Site Assessment Tells You About Prefab ADUs
Prefab and modular ADUs have changed the Dallas market significantly over the last few years. Companies like Boxabl and Plant Prefab make factory-built units that arrive on a flatbed. They’re not right for every lot, and that’s something a site assessment determines early.
For a Boxabl unit, for example, you need clear access from the street to the build site with no power lines or low branches blocking the path. A Mighty Buildings panelized system ships flat and gets assembled on-site, so access requirements are different. Plant Prefab units can be quite large, and we’ve seen Dallas lots in neighborhoods like Lochwood and Casa View that simply can’t get a 16-foot-wide load into the back yard without removing a fence and a tree. That doesn’t mean prefab is off the table, it means the cost picture changes.
On the other hand, a Tuff Shed structure converted to livable space is a different set of rules entirely, and honestly, it’s a different conversation about what the city will approve as habitable square footage. We walk through all of this during your site assessment.
Here’s the thing about prefab that surprises most homeowners: the site costs don’t go away. You still need foundation work, utility hookups, permits, and site preparation. A factory-built unit doesn’t exempt you from Dallas code requirements. The assessment tells you what those site-side costs will actually be so you’re comparing apple-to-apple numbers when you choose between prefab and site-built.
Dallas-Specific Factors We Check on Every Assessment
Dallas has some particular quirks that affect ADU feasibility in ways that don’t show up in generic online guides. Here’s what we’re actually looking at when we walk your property:
- Clay soil and foundation movement. Dallas sits on expansive clay soils that move with seasonal moisture changes. In neighborhoods across East Dallas, Highland Park adjacent, and the older suburbs, foundation movement is a fact of life. For a detached ADU, that affects foundation design. For a garage conversion, we check the existing slab for cracking and movement that might need remediation.
- Alley access and utility easements. Many Dallas neighborhoods, especially those built before 1960, have rear alleys. That’s where your sewer and electrical service often live. The alley setback requirements are different from front setback requirements, and some older properties have easements that make a backyard ADU tighter than the raw square footage suggests.
- Floodplain overlays near creeks and the Trinity. Parts of Dallas near White Rock Creek, Bachman Creek, and the Trinity River sit in FEMA-designated flood zones. An ADU in a floodplain requires elevation, flood vents, or in some cases a variance that isn’t guaranteed.
- Tree preservation districts. Dallas enforces tree protection for certain species above a certain diameter. If you have a large live oak or pecan tree in the build zone, moving the build footprint by 10 feet might mean you can save the tree and avoid a costly removal permit process. We flag this on the site walk.
- Historic district overlays. If your home is in a Dallas historic district, like Swiss Avenue or Hollywood/Santa Monica, exterior structures are subject to preservation review. An ADU that’s visible from the street may need design approval that a standard neighborhood wouldn’t require.
- Power line and transformer proximity. If your ADU needs its own electrical upgrade or even a new transformer, the distance from the nearest power source to your build site matters a lot for cost. We check pole and line locations on every assessment.
These are the details that separate a real site assessment from a guy with a clipboard who glances at your yard for 10 minutes. We spend the time because the details are what protect you.
Key Takeaways
- Site assessment in Dallas costs $350-$950 and is credited toward design and permitting if you build with us.
- You get a written price before we show up, and a written report after we leave.
- Dallas-specific factors like clay soil, alleys, floodplains, and tree rules can make or break an ADU project, and we check all of them.
- Prefab ADUs from Mighty Buildings, Boxabl, and Plant Prefab have specific site requirements that get evaluated during the assessment.
- The fee for your assessment is applied to the cost of ADU Design & Permitting if you choose to move forward with Lodgewick ADU Dallas.
FAQs – Site Assessment
How much does a site assessment cost in Dallas?
A site assessment in Dallas typically costs $350 to $950 depending on lot size, complexity, and what you’re planning to build. The specific price for your property is given in writing before we ever set foot on site, and that number doesn’t change. Call (361) 204-4652 for an exact quote, and keep in mind the assessment fee is credited toward our design and permitting work if you move forward with the build.
How long does a site assessment take?
Most site assessments in Dallas take 90 minutes to 2 hours on-site, and you get the written report within 3 to 5 business days after the visit. Larger lots with multiple potential build sites or significant drainage questions may take up to 3 hours on-site. We schedule a window that works for you, and we show up in that window, every time.
Can you assess my lot if I’m not sure I want an ADU yet?
Yes, that’s a common starting point. Many homeowners book a site assessment specifically to answer the question of whether an ADU, garage conversion, or JADU makes sense on their Dallas lot before committing to any design work. The report you receive gives you a clear feasibility determination and realistic cost ranges, so you can make an informed decision. Call (361) 204-4652 and we’ll talk through whether a full assessment is the right first step for you.
Will the site assessment tell me if I can legally build an ADU on my Dallas property?
Yes. The assessment includes a zoning review for your specific address, including setback requirements, lot coverage limits, flood zone status, and any historic district or tree preservation overlays that apply. We give you a written determination of feasibility, and if there are restrictions, we explain exactly what they are and what options exist. A call to (361) 204-4652 gets the process started, and the person who answers will be a real human who can schedule your assessment.
What if my site assessment says my lot won’t work for what I wanted?
Then we tell you that in plain language, in writing, and we walk you through the alternatives. Sometimes the answer is a smaller ADU, a different placement, a JADU inside the existing home footprint, or a garage conversion instead of a detached unit. Sometimes the lot genuinely can’t support what you wanted, and we’d rather tell you that honestly than take your money for plans that won’t be approved. That’s the whole point of doing the assessment first.
The Kingswell Guarantee and Your Site Assessment
You might be wondering why a site assessment needs a guarantee. Here’s why: Dallas homeowners have been burned by contractors who showed up late, gave vague answers, and changed the price once work started. That pattern doesn’t stop at the assessment phase, it starts there.
When you book a site assessment with Lodgewick ADU Dallas, you’re operating under The Kingswell Guarantee, which covers every project we do. That means a written price before work begins, a defined arrival window that we actually keep, a clean job site while we’re working on your property, and a written guarantee on the work itself. If something about our site assessment is wrong and it costs you money down the line because we missed something we should have caught, we make it right under our 365-Day Done Right Promise. That’s a written commitment, not a handshake.
Russ Delmar leads every assessment review. He’s the owner at Lodgewick ADU Dallas, and his name goes on every report we deliver. When you call (361) 204-4652, you’ll reach a live person who can schedule your assessment, answer questions, and give you a straight answer about what this will cost. No pressure, no games, just clear information about what’s possible on your property.
Get Your Site Assessment Scheduled
If you’re ready to find out what your Dallas property can actually support, call Lodgewick ADU Dallas at (361) 204-4652 for a free initial consultation and a written site assessment quote. We’ll talk through your lot, your goals, and what kind of ADU or garage conversion you’re considering, then we’ll schedule a walk that fits your calendar. The price is in writing before we start, the guarantee is in writing before we finish, and you’ll know exactly what’s possible before you spend another dollar on plans.
Start with the site. Everything else follows.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving Dallas.
