2026-08-24 · 9 min read · Santa Clarita · last reviewed 2026-09-17
By Michelle Dubner, REALTOR® · DRE #01496647 · Dubner Real Estate Group
What Santa Clarita Sellers Should Document
What should Santa Clarita sellers document about an ADU before listing?
After Santa Clarita adopted zoning updates for accessory dwelling units and two-unit development, sellers should be ready with clean records. Good documentation can help support disclosures, answer bu

Part of Selling your home
Overview
If you are selling in Santa Clarita, start by gathering every record you have for any ADU, garage conversion, addition, or two-unit setup before you list. That is true whether your home is in Valencia, Stevenson Ranch, Saugus, Newhall, Castaic, or Canyon Country.
The city’s April 28, 2026, council recap says the council adopted ordinance amendments tied to accessory dwelling units, two-unit development, and Housing Element Policy HP-2.1, so buyers and lenders may ask more questions about how a property was built and approved.
If you want the practical version of this for your own situation, here is how we prepare a home for market.
Key Takeaways- Keep permit, plan, and inspection records together in one file before you market the home.
- Document any ADU, second unit, or converted space with the dates, approvals, and final sign-offs you have.
- Be ready to explain what is legally part of the sale and what may need buyer verification.
- Use your paperwork to support your disclosure conversation, not to replace it.
- If your home is in Santa Clarita or another part of Los Angeles County, confirm whether city or county rules apply to the property.
What should I gather first?
Start with the paper trail for the main house and any added living space. That includes permits, approved plans, final inspection cards, certificates of occupancy if you have them, and contractor invoices. If you made changes over time, add before and after photos if they help show what was done.
We suggest putting everything in date order. That makes it easier for buyers, escrow, and your agent to see what was approved and what still needs a closer look. If a document is missing, do not guess. Write down where you looked so you can keep the search organized.
It also helps to make a short property summary sheet. List the home address, the year each change happened if you know it, the type of work completed, and the agency that handled the permit. A one page summary can save time when a buyer asks for details during escrow.
How should I document an ADU or second unit?
If your property has an accessory dwelling unit or a second unit, keep a simple summary page with the basics. Note when the space was built or converted, who did the work, what permits you found, and whether the final approval is in hand. If the unit has separate access, parking, or utility arrangements, document those facts clearly.
The Santa Clarita ordinance update adopted on April 28, 2026, does not replace the need to verify the property’s own permits and approvals. We are not giving legal advice, but clear records can reduce confusion and help everyone ask better questions early.
If the unit was used as living space, do not assume buyers will understand its history from the listing photos alone. Write down what the space was used for, what it was approved for if you know, and what still needs confirmation. The goal is to keep the facts in one place so you can discuss them consistently.
Why do disclosures matter more now?
A zoning change does not erase a seller’s duty to be honest about the property’s history. If you know a room was converted, a garage was altered, or a unit was added, your disclosure form should match what your records show. The goal is consistency between what you say, what you can prove, and what the buyer sees.
If you are unsure whether a change was fully permitted, say so. It is better to flag an issue early than to leave buyers to discover it later. In a sale, surprises can slow down escrow and create avoidable stress for both sides.
When we talk with sellers, we remind them that disclosure is not only about major additions. It also includes ordinary changes that affect how the property is used or described. A careful review now can prevent repeated questions later and can help your agent answer buyer concerns with confidence.
What will buyers likely ask during due diligence?
Buyers often want to know three things. First, was the work permitted. Second, was it inspected and approved. Third, what parts of the property are included in the sale. A clear file helps answer those questions without long delays.
They may also ask for utility details, rental history if a unit has been used that way, and any records showing how the space connects to the main home. We recommend having those documents ready before the home goes live. That can make showings and escrow conversations smoother.
A buyer may also want to know whether any improvements changed the home’s layout or function. If so, keep a few plain language notes ready. Avoid marketing language that sounds bigger than the paperwork. Simple and accurate is better than polished but vague.
How do city and county rules affect my sale?
Santa Clarita sits inside Los Angeles County, and the rules that apply to a property can depend on where the home is located. The County’s Santa Clarita Valley Area Plan says it applies only to the unincorporated portions of the valley, while the City of Santa Clarita has its own general plan and zoning work. That means your property’s location matters.
Before listing, confirm whether your home is inside the city or in an unincorporated area of the county. If you already have permits, the records should show which agency handled them. If you do not know, your agent, title company, or the local planning office can help you sort that out.
If your file includes older paperwork from different agencies, keep it together and label it clearly. Buyers do not need a confusing stack of unrelated pages. They need a readable record that shows which office reviewed the work and what documents support the property history.
How can documentation help with pricing talks?
Good records do not set the price by themselves, but they do support the story of the home. If a buyer sees a fully documented ADU or two-unit setup, that is easier to discuss than a space with no paper trail. The same is true for additions, upgrades, and garage conversions.
When we meet with sellers, we like to separate three ideas. The physical space, the paperwork, and the market response. Those are related, but they are not the same thing. Strong documentation gives your pricing conversation more facts and fewer unknowns.
That is also why it helps to keep your records available before you start showings. A buyer who gets an answer quickly is less likely to assume the worst. Even if the paperwork is incomplete, an organized response can keep the conversation moving in a practical direction.
What should I do if my records are incomplete?
If your file is missing pieces, start with the city or county office that likely handled the work. Search for permit history, plan checks, or inspection records tied to the property address. Then ask your agent how to present any gaps without creating confusion.
Do not create new documents to fill missing space. Instead, build a clean timeline of what you know and what still needs confirmation. That honest approach gives buyers a clearer picture and helps you avoid last-minute problems.
If you cannot recover everything before listing, decide which items are still important for your sale and focus there first. Usually that means the permit record, the final approval if it exists, and any disclosure form that references the improvement. Narrowing the list can make the process less overwhelming.
Sources
- santaclarita.gov
- City of Santa Clarita: City Profile
- Los Angeles County Planning: Santa Clarita Valley Area Plan
If you are weighing a move, start with how we price and market a home here. If you are also weighing where to move next, see our breakdown of Santa Clarita’s six communities.
