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Building design is the act of deciding what a building will be before anyone draws it for a permit: how big, what shape, how it sits on the lot, how it is organized inside, and what it is made of. In the United States that work is legally available to people who are not architects for most houses, and one state has gone further and made it a registered profession in its own right.

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Nevada is that state. Its board registers residential designers alongside architects and interior designers, and its statute provides that no person may practice architecture or use the title of architect, or practice residential design or use the title residential designer, in the state without a certificate issued under that chapter. Registration comes through five years of combined education and practical training or reciprocity from an architect registration in another state, plus a four-part Residential Design Examination covering structural technology, materials and methods, building systems and life safety, together with a graphic division in which candidates draw floor plans, site plans, elevations and cross-sections.

Elsewhere the same work usually runs on exemptions instead. Florida exempts one-family and two-family residence buildings, townhouses and appurtenant domestic outbuildings regardless of cost. California exempts single-family woodframe dwellings not more than two stories and basement in height, and multiple dwellings of no more than four units in the same construction and height.

Nevada registers residential designers; most states do not

Nevada's arrangement is worth understanding even if you do not live there, because it shows what a state thinks house design competence consists of. The examination is split into three written sections, on structural technology, on materials and methods, and on building systems and life safety, plus a graphic division requiring floor plans, site plans, elevations and cross-sections. Candidates are permitted to use the International Residential Code and other reference material during the test, which tells you the examination is about applying the code rather than memorizing it. The route in is five years of combined education and practical training under the board's table of equivalents, and there is a reciprocity path for people already registered as architects in another state.

Most states have no such register, so the designer you hire holds either an architect's licence, a private certification, or nothing at all, and all three are lawful for an exempt building. That places the burden of assessment on you. Look for evidence the designer works from the code rather than from precedent: can they tell you which code edition your jurisdiction has adopted, what the energy requirements are in your climate zone, and which parts of your project they expect to send to an engineer. A designer who cannot answer those three is designing from habit.

Where a building designer may design a house, and where an architect is required

The exemptions are written differently from state to state and it is worth reading your own. Florida frames its exemption around building type, exempting any one-family or two-family residence building, townhouse, or domestic outbuilding appurtenant to any one-family or two-family residence, regardless of cost. California frames its around construction and size, exempting single-family dwellings of woodframe construction not more than two stories and basement in height and multiple dwellings containing no more than four dwelling units of the same construction and height, and closing the obvious loophole by barring multiple clusters of up to four units being assembled into a complex exceeding four units on one lawfully divided lot.

The practical boundary for a homeowner is usually not the exemption itself but the structure inside it. California's exemption ends where any portion of the building deviates from conventional woodframe code standards, and those portions must be prepared by a licensed architect or registered engineer. A house with a conventional plan and one ambitious opening is an exempt house with an engineered element in it, and that is an entirely normal way for a project to be organized as long as everyone knows in advance who is producing which part.

What building designers are engaged to produce

  • Feasibility and site studies: testing what the zoning envelope, setbacks, height limit and topography actually allow on a specific lot.
  • Whole-house design for a new dwelling within the state's exemption, from arrangement through to a permit-ready set.
  • Addition and second-storey design, including the structural implications that will be handed to an engineer.
  • Accessory dwelling unit and garage conversion design, which many jurisdictions now process on dedicated paths.
  • Remodel design where the footprint stays and the interior organization changes substantially.
  • Stock plan adaptation: taking a purchased plan and reworking it for your lot, your climate and your jurisdiction's code.
  • Code and energy strategy: deciding the envelope, glazing and mechanical approach that will pass in your climate zone.

The design phases, and what each one settles

A house design moves through recognizable stages even when nobody names them. First the program and the site: what the building has to contain, and what the lot and its rules permit. Then schematic design, where two or three arrangements are tested at a coarse level and one is chosen. Then design development, where the chosen arrangement becomes specific: wall thicknesses, window sizes, ceiling heights, roof geometry, stair dimensions and how the structure actually works. Only then do permit and construction documents follow.

The stage most often skipped is design development, and skipping it is why projects change during construction. Decisions deferred past this point get made later under time pressure, when framing is already up and the options are worse. Ask your designer to describe what will be settled at each stage and what will still be open, and treat a proposal that goes straight from a sketch to a permit set as a proposal to make the difficult decisions on site.

Building designer, architect and drafter: three different jobs

A drafter produces drawings from decisions somebody else has made. A building designer makes those decisions and then documents them. An architect does the same and holds a state licence that lets them seal the result and take professional responsibility for it across a wider range of buildings than any exemption covers.

The right choice follows the project rather than the prestige. If you know exactly what you want and need it drawn, a drafter is enough. If the arrangement is unresolved and the lot is constrained, you want a designer or architect who will spend real time on the layout. If your building falls outside your state's exemption, or your jurisdiction requires sealed documents, or the project is complicated enough that coordination between several consultants is the actual work, you want an architect. Paying for the wrong one is usually visible in the same way: either you bought decision-making you did not need, or you received drawings of a design nobody thought through.

Where building design engagements fail

  • Zoning confirmed from a neighbor's project rather than from the code and the parcel's own overlays and easements.
  • A design produced with no reference to the code edition or the climate zone the jurisdiction actually enforces.
  • Structural ambition drawn without an engineer, so the design cannot survive its first review.
  • No cost testing at any stage, so the budget conversation happens for the first time when a contractor bids.
  • A stock plan adapted superficially, keeping details suited to a different climate, soil or wind region.
  • The energy strategy left to the mechanical contractor, after the glazing and envelope decisions have already been locked.
  • Design development skipped, leaving dimensions, heights and details to be resolved during framing.
  • No written deliverable list, so the difference between a design service and a drawing service is never established.

What changes a building design fee, and what LokalMatch does

Design fees are mostly a function of how many decisions the designer is making and documenting. The drivers are whether the project is new construction or an alteration of something that must be measured first, how constrained the site and its approvals are, how many schemes you want explored, how far the documentation goes past permit, whether engineering, survey and energy work are inside the fee, how much coordination with a contractor is expected, and whether the designer supports construction. A low fee usually signals a short design phase rather than efficiency.

LokalMatch is the front door. You describe the project once: the lot, what you want to build, whether you have a survey or existing drawings, which state and city you are in, and what stage you are at. Building designers serving your area receive the request, and the interested ones get in touch directly. Pros pay for the requests they receive; homeowners use the service free of charge. LokalMatch does not design buildings, does not set fees, and does not vet, rank or recommend any designer, so checking any state registration that applies where you live and agreeing the deliverables in writing remains yours to do.

Building Design: frequently asked questions

Is a building designer allowed to design my house?

In most states, for an ordinary dwelling, yes. Florida exempts one-family and two-family residence buildings, townhouses and appurtenant domestic outbuildings from the architect requirement regardless of cost, and California exempts single-family woodframe dwellings not more than two stories and basement in height. Nevada is different: it registers residential designers and bars practising residential design or using that title without a certificate from its board.

What does Nevada's residential designer registration involve?

Five years of combined education and practical training under the board's table of equivalents, or reciprocity for someone already registered as an architect in another US state, plus a four-part Residential Design Examination. Three sections are written, covering structural technology, materials and methods, and building systems and life safety, and one is a graphic division in which candidates produce floor plans, site plans, elevations and cross-sections, with the residential code available as reference material.

Can a building designer handle the structure too?

Only within conventional construction, and only where your state allows it. California's exemption for woodframe dwellings ends where a portion deviates from conventional woodframe code standards, and requires a licensed architect or registered engineer to prepare those parts. In practice that means long spans, tall walls, cantilevers and lateral design in seismic or high-wind regions go to an engineer, which is normal as long as it is planned rather than discovered.

Can I just buy a stock house plan?

You can, but it will need adapting and the adaptation is the real work. A plan drawn for another region may carry the wrong insulation values, the wrong foundation for your soil and frost depth, and details unsuited to your wind or seismic conditions, and it will not reflect your lot's setbacks, slope or orientation. Budget for a local designer to rework it against the code edition your jurisdiction enforces.

How do I tell a design service from a drawing service?

By asking what gets decided and by whom. A drawing service documents decisions you have already made; a design service makes them, tests them against the code and the site, and resolves the building before it is documented. Ask for a written list of what will be settled at each stage. A proposal that moves from a first sketch straight to a permit set is a drawing service whatever it is called.

Sources

  1. Nevada State Board of Architecture, Interior Design and Residential Design: residential designer registration
  2. Florida Statutes section 481.229: exceptions and exemptions from architect licensure
  3. California Business and Professions Code section 5537: exemptions for woodframe dwellings
  4. California Business and Professions Code section 5536: unlicensed practice and use of title

Written by the LokalMatch editorial team. Last reviewed September 21, 2026. How we write and check our guides

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What affects the cost of building design

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Type of professional and service needed
  • Size and complexity of the project
  • Level of detail in drawings or reports
  • Number of site visits and meetings
  • Number of design revisions
  • Help with permits or contractor selection

How to compare designers before you hire

  • Match the professional to the job: an architect or engineer where the work requires one, a designer for layout and finishes, or an inspector for a condition report.
  • Ask whether they are licensed or certified for this type of work in your area, where that applies.
  • Review a portfolio or sample report that's similar to your project.
  • Get a written agreement that spells out the services, deliverables, number of revisions and how fees are charged.
  • Ask whether their drawings will be suitable for a permit application, and whether they'll help with it.

Questions to ask designers before you hire

  • Are you licensed or certified for this type of work in my area?
  • What exactly will you deliver: drawings, specifications, a report or site visits?
  • How are your fees charged: a fixed fee, hourly or based on the project cost?
  • How many rounds of revisions are included?
  • Will your drawings be ready for a permit application, and will you submit it?
  • Can I see a sample of a similar project or report?
  • Do you carry professional liability insurance?

When to call a pro for building design

  • Before removing or moving a wall that may be load-bearing
  • Before buying a home, to understand its condition
  • When a permit application needs drawings

Building design permits and local rules

Some building design work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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