Your Westchester Home's Square Footage Does Not Match the County Record. Now What?

The county's square footage is a tax record. It is not a measurement of your house taken by someone who came out and measured your house. So when the number on your property tax bill does not match the number on a floor plan, the usual explanation is not that somebody made a mistake. It is that the two numbers were built for different purposes, from different information, decades apart.

In Westchester this comes up constantly. The original tract homes here were small, and seventy years of owners added onto them. Bedrooms at the back, enclosed porches, converted garages, rooms over a slab that used to be a patio. Some of that work was permitted and picked up by the county. Some was permitted and never picked up. Some was never permitted at all.

The gap itself is not the problem. I am Bobejo Kelley of First Key Pacific, and in a sale the problem is always the same. A buyer finds a number that disagrees with another number, nobody explained it in advance, and a normal fact is now treated as something hidden.

The Los Angeles County Assessor keeps a record on every parcel so the property can be taxed. Living area is one field on it, established when the house is built and updated when the county learns something changed. The main way the county learns is a permit.

That creates three ways a record drifts from the building standing on the lot.

• Permitted work that never made it into the record. An addition from 1978 was permitted, inspected, and finaled, and the square footage field was never revised. This happens more than people expect on older work.
• Unpermitted work. Space added without a permit is invisible to the county by definition. It is also the version that carries the most consequences at a sale, which I wrote about in what unpermitted work means when you sell.
• Different definitions of what counts. Whether a converted garage, a permitted addition with a lower ceiling, or a sunroom counts as living area depends on who is counting and under what rule.

None of that makes the record wrong. It makes it a record of what the county was told, which is a narrower thing than a description of your home.

Look at when this neighborhood was built. Most of the housing stock went up around the Second World War and the decade after, in tracts of modest homes on generous lots. Kentwood, Westport Heights, the streets north and south of Manchester. The original floor plans were compact by any modern standard.

Then came seventy years of owners needing another bedroom. On a lot with setback room, the cheapest square footage is what you add to the back of what you already own. Garages became offices and then bedrooms. Patios were roofed, then walled, then insulated. A house that started at 1,100 square feet is now 1,800, across three projects, three owners, and five decades.

So a Westchester listing where the county record and the actual home agree exactly is closer to the exception than the rule. If you are newer to the area, I put the broader picture together in the Westchester neighborhood guide.

By the time a home is in escrow there are usually three square footage numbers in play, and knowing who relies on which one removes most of the confusion.

• The county record. Built for taxation, sourced from permits. Public, free, and easy for any buyer to pull in about a minute.
• The listing number. Whatever the seller's side publishes. A listing names the source of the figure, and the honest sources are the county record, a measurement done for the sale, a prior appraisal, or the builder's plan. Naming the source is the part that matters.
• The appraisal. On a financed purchase, an appraiser measures the home in person against a published standard that defines what counts as finished living area and what does not. That is the number the lender's file carries.

A cash buyer may never generate the third number. A buyer with a loan always does, and that appraisal is where an inflated listing figure surfaces with consequences attached. I walked through that visit in preparing for the appraisal before you sell.

This is a week-one item, not a week-three item. Four steps, in order.

• Get the home measured. Hire someone to produce a floor plan with a measured living area. It is a modest cost, it doubles as a marketing asset buyers actually use, and it replaces an argument with a document.
• Pull the permit history. Order the city's records for the address and read what was permitted, when, and whether it was finaled. If a room exists that no permit describes, know it in week one.
• Check the parcel record. The city's public zoning map carries the parcel data and the permit list in one place, and I explained how to read it in what ZIMAS is and how to use it. A sale inside the City of Los Angeles also generates its own residential property report, which I covered in what a 9A report is.
• Write down the difference and disclose it. California asks a seller to disclose what they know that a buyer would care about. A known gap between the record and the measured home is exactly that. Two sentences and the paperwork behind them. The full picture of what belongs in the package is in the California seller disclosure guide.

In that order, the whole thing costs a week of lead time and one vendor. After an offer is accepted, it becomes a renegotiation.

People treat this as one problem. It is two, and they behave nothing alike.

The record is smaller than the house. The common one, and the friendlier one. You have more home than the county has on file, which is worth real money if you can support it. Support means a measurement and, where possible, the permits behind the added space. Where permits do not exist, the space still has value and still gets described, accurately and disclosed as what it is. A buyer told plainly can price it. A buyer who discovers it assumes the worst about everything else in the file.

The record is larger than the house. Less common and more serious, because a published number cannot be supported. If a listing carries a figure the appraiser's measurement contradicts, the loan file follows the appraiser. That can move the value conclusion, and it raises a question a buyer's agent will press. The fix is the same, earlier. Measure first, publish the measured number, and say where it came from.

Either way, a seller should be able to hand somebody the source for the number they published. Pricing follows an accurate description of the asset, which is the argument in how to price a Westside LA home to sell.

Verify during your investigation period rather than assuming any of the three numbers is settled. The county record is free and takes a minute. The permit history takes longer and tells you more, because it separates space built under permit from space that was not.

If the gap matters to you, say so early and in writing. A seller can usually answer it with documents. What you want to avoid is reaching the end of your contingency period with a question you could have asked on day three, when the choice in front of you is narrower and the clock is against you.

If you own a Westchester home that has been added onto and you are weighing a sale in the next year, the useful move is small. Pull the county record and the permit history, compare both against the house you are standing in, and find out now whether there is a gap and which way it runs.

That one hour decides whether the square footage is a fact you present or a discrepancy a buyer uncovers. Same underlying house. Very different conversation.

I handle this on every listing, which means the measurement, the permit pull, and the disclosure language are done before the home goes live instead of during escrow. If you want to know what your address actually shows on paper before you commit to anything, see selling your Westchester home or get in touch. No pressure, just real answers.