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2026-09-19 · 7 min read · Westchester

What Retrofits Does a Westchester Home Need Before It Can Close?

Steel foundation hardware and anchor bolts illustrating structural retrofit work

The short answer

Before a home inside the City of Los Angeles changes hands, it has to clear a short list of retrofit items, and the seller is the one who signs for them. Water conserving plumbing fixtures throughout the house. Working smoke alarms and carbon monoxide alarms in the right places. Escrow asks for the paperwork, and the file does not close without it.

None of it is complicated. Most of it is a morning with a plumber and an afternoon with a screwdriver. The reason it causes trouble is timing. It tends to surface in week three of escrow, on a house where somebody has already booked a moving truck, and a small errand turns into a string of phone calls at the exact moment nobody has room for one.

I am Bobejo Kelley of First Key Pacific. Here is what the retrofit list actually covers, what it does not cover, why the question comes up more often on this side of the 405, and when to handle it so it never becomes news.

The water conservation retrofit

The city requires water conserving plumbing fixtures in a home being transferred, and the seller certifies that the house complies. In practice that means the toilets, the showerheads, and the faucet aerators. On a house where the plumbing has not been touched in thirty years, it means replacing them.

Two things are worth knowing before you start.

The first is that the standard has tightened over the years. A fixture that satisfied the requirement when your neighbor sold in an earlier decade may not satisfy it now. Confirm the figure that applies in the year you are selling rather than the one somebody remembers, and get that from the city or from your escrow officer, not from the box the fixture came in.

The second is that the certification is yours to make. A licensed plumber can do the work and give you an invoice, and a capable owner can do much of it themselves, but the document that goes into the file is a statement by the seller that the home complies. That is a reason to actually look at every bathroom rather than assume the guest bath matches the primary.

Keep the invoice. Keep the box labels if you have them. When a buyer's agent asks what was done, an answer with paperwork behind it ends the question in one message.

Smoke alarms and carbon monoxide alarms

California asks for working smoke alarms in every bedroom, outside each sleeping area, and on every level of the home. Carbon monoxide alarms are required in homes with a fuel burning appliance, a fireplace, or an attached garage, which covers most of the housing stock around here.

This is the cheapest item on the list and the one most often missed, because a family who has lived in a house for decades stops seeing the ceiling. The alarms are there. Half of them are older than the last remodel, and one of them is the reason somebody took the battery out in 2014.

Replace them with current units before the home goes live. Sealed long life units cost a little more and remove the battery question entirely. Then write down where they are, because a buyer's agent will check at the final walkthrough, and a walkthrough that turns up a missing alarm on closing week is a conversation nobody needs at that point in a deal.

What is not a retrofit

These four things get run together constantly, and separating them saves a lot of confusion.

  • Retrofit items are compliance work. Something in the house does not meet a current standard, you replace it, and you certify that you did.
  • The 9A report is a report, not a repair. The city inspects and issues a residential property report on a home being sold inside city limits. I covered what it is and how to order it in this walkthrough of the 9A. It can surface items, but ordering it is a separate task from the retrofit list.
  • The home inspection is information a buyer pays for. It has no compliance function at all. What it produces is a request, and that request gets negotiated. An inspection a seller chooses to order before listing changes what you know going in, not what you are required to fix.
  • Permits for work already done are a much larger subject and a much longer timeline. A converted garage or an addition without a final sign off is not a retrofit item and it does not get solved with a trip to the hardware store. That one is covered in selling a home with unpermitted work.

The retrofit list is the small, finite, checkable one. That is exactly why it should never be the thing holding up a closing.

Why this comes up more in Westchester

Three local things stack up here.

The housing stock went up largely in one wave, which means a great many homes share an era of plumbing and wiring. When one house needs every fixture swapped, the one down the street usually does too.

Many homes have had windows and doors replaced through the airport's residential soundproofing work. That is real, permitted work by a contractor, and it is also the reason the permit record on a Westchester parcel can look active while the plumbing has not been touched since the original build. A house that has clearly been improved is not automatically a house that meets the current fixture standard. The soundproofing trade and the recorded document that came with it are their own subject, and I wrote about that in what an avigation easement means when you sell.

Many owners here have been in the same home for a long time. Long tenure is a good thing in almost every way that matters to a sale. It also means nobody has had a reason to think about a toilet in thirty years, and the fixtures in the back bathroom are exactly as old as the family stories about it.

Do it in week one, not in week three

Here is the whole argument for front loading this, and it is not about the money.

Handled early, the retrofit list is an errand. You schedule a plumber the same week you decide to sell, you replace the alarms while the house is being prepared for photos, and the paperwork goes into the disclosure package that reaches a buyer on day one. It is finished before anyone is waiting on it, and it is invisible.

Handled late, the identical work lands in the middle of a buyer's contingency period, next to the inspection report and the disclosure questions and whatever the appraiser had to say. Same three fixtures. Completely different meaning. A buyer reading a list of open items does not sort them by size, and an errand sitting in that stack reads as one more thing the seller did not get to.

So it goes in the first week, with the title order and the permit history pull and everything else that belongs at the front. For the full order I use on a Westside listing, the Westside selling guide lays out the sequence.

What to do next

If you are thinking about selling a Westchester home, walk the house once with this in mind. Count the toilets. Look at the showerheads. Check every alarm and note where they are. That is a twenty minute pass, and it tells you whether this is a morning of work or an afternoon.

Then get the exact current requirements for the year you are selling from the city or from your escrow officer, because this is a list that changes and a neighbor's memory is not a source.

If you would rather hand the whole thing to someone, that is the job. I handle the vendors, the ordering, and the paperwork so it is finished before your home goes live. Get in touch and we will start with a walk through the house. No pressure, just real answers.

Common questions

Who pays for the retrofit work, the buyer or the seller?
In a City of Los Angeles sale the retrofit items are customarily the seller's, and the seller is the one who signs the compliance paperwork that goes into escrow. Like anything else in a contract it can be negotiated, but it is written as a seller obligation and it is small enough that trying to shift it usually costs more goodwill than it saves money.
Can I do the fixture replacement myself?
An owner who is comfortable with basic plumbing can handle showerheads and aerators, and many handle toilets as well. Two cautions. The certification is a statement by you that the whole home complies, so check every bathroom rather than the one you use. And if anything behind the wall turns out to be original, stop and call a licensed plumber rather than discovering a supply line problem the week of your photos.
What happens if the retrofit items are not done before closing?
Escrow will ask for the documentation, and a missing item becomes an open condition on the file. In practice it gets resolved with a rushed vendor visit or a holdback, both of which cost more attention than the work itself. It is not a reason a sale collapses. It is a reason a closing week gets harder than it needed to be.
Is the 9A report the same thing as the retrofit requirements?
No. The 9A is a residential property report the city issues for a home being sold inside city limits, and ordering it is its own task. The retrofit items are compliance work you perform and certify. They arrive in the same week of a listing and they belong on the same checklist, but they are two separate errands with two separate pieces of paper.
Do carbon monoxide alarms apply to a home with no gas appliances?
The requirement attaches to homes with a fuel burning appliance, a fireplace, or an attached garage. A fully electric home with no fireplace and a detached garage may fall outside it. That is a question to settle for your specific house rather than by reading a general rule, and your escrow officer can tell you what the file needs.
How early should I start on this?
The same week you decide to sell, alongside the title order and the permit history. Finished before the home goes live, it is invisible. Started after you are in escrow, the identical work sits in a buyer's stack of open items and reads as something the seller left undone. The work is the same either way. Only the timing changes what it means.

The method

Where this fits in how I sell