How to Sell a House and Buy Another at the Same Time

If you own a home in Los Angeles County and you're thinking about making a move, you've probably hit this question pretty fast: do I sell first, or buy first? And honestly, what happens if I try to do both at once?

Here's the thing most people don't realize until they're in it: most homeowners who move are doing exactly that. You're not selling a home in a vacuum. You have equity tied up in one property and you need it in another. The challenge is that both transactions have their own timelines, their own contingencies, and their own risk points, and you need them to work together.

I've walked a lot of LA County clients through this. It can feel like a lot of moving pieces at first, but once you understand the options and have a plan, it becomes a logistics problem, not a panic situation. This guide covers everything you need to know, specific to this market, so you can walk into conversations with your agent and lender already informed.

 

Overview

• Why the LA market makes timing especially complex
• How to assess your equity and establish your buying power
• Getting pre-approved while you're still a homeowner
• The three main strategies for buying and selling simultaneously
• How contingencies and leaseback agreements work
• Closing coordination and what can go sideways
• Working with the right professionals

 

Why Timing Is More Complex in Los Angeles County

The simultaneous buy-sell challenge exists everywhere, but LA has a few specific layers worth understanding before you start.

Prices are high. As of early 2026, the median sale price in Los Angeles County is approximately $905,000, with the median listing price running even higher. That means the down payment on your next home is likely significant, and for most sellers, the bulk of that money is still sitting in the equity of the home they haven't sold yet. That creates a real coordination problem.

Inventory has been rising, but demand stays persistent. For-sale inventory in the LA metro area increased roughly 28% in 2024 and another 12% in 2025. More options for buyers is good news if you're buying, but it also means more competition for sellers in some price ranges. Homes in LA County are averaging around 63 days on market as of early 2026, up from 55 days the prior year. That slower pace is something to factor into your timeline.

Mortgage rates are in the mid-6% range right now. As of April 9, 2026, Freddie Mac reported the 30-year fixed-rate mortgage averaging 6.37%, down from 6.64% a year prior. That's meaningfully lower than where rates sat at their 2023 peak, but it still affects affordability at LA price points, and it affects how a lender will evaluate your ability to carry two properties at once if your timing doesn't line up perfectly.

Los Angeles County note: If your property is in the City of Los Angeles (not just the broader county), Measure ULA may apply on the sale side. As of July 1, 2025, the ULA thresholds are $5,300,000 and $10,600,000, with tax rates of 4% and 5.5% respectively on the full transaction value. This is on top of the standard documentary transfer tax. If you're selling a higher-value property, review the current ULA rates with the City's Office of Finance well before you list.

Start With Your Equity Picture

Before you think about strategy, you need to know what you're actually working with. A lot of people skip this step and end up in a tough spot later.

Your equity is your current home's market value minus what you still owe on it. That's your fuel for the next transaction. If your home is worth $950,000 and your remaining mortgage balance is $400,000, you have approximately $550,000 in equity, before the costs of selling.

And those selling costs in Los Angeles are real. Commission, title and escrow fees, any repairs or staging before listing, and transfer taxes all come off the top. A realistic net proceeds estimate for most LA County transactions runs roughly 8-10% below the sale price. For a more detailed breakdown of what you'll pay on the sell side, Homelight's LA seller closing cost calculator is a useful starting point.

The number you want is your estimated net proceeds, because that's what you're actually putting toward your next purchase.

Beginner rule: Don't plan your down payment around your sale price. Plan it around your estimated net proceeds. These are different numbers, and using the wrong one is how people end up surprised at the closing table.

 

Get Pre-Approved Before You List

Here's a step most people do in the wrong order: they focus entirely on the selling side and treat the buying side as something to figure out later. That approach creates a lot of unnecessary pressure.

I always recommend getting your mortgage pre-approval in place before you even list your current home. Here's why it matters:

It tells you your actual purchase budget, including how your existing mortgage payment factors into your debt-to-income ratio. It surfaces any issues that could slow down your financing while you still have time to address them. And it puts you in a position to make a strong, credible offer when you find the right home, instead of scrambling to get paperwork together while the listing is getting other bids.

One nuance that surprises a lot of clients: when you still carry a mortgage on your current home, lenders will generally count that monthly payment against your debt-to-income ratio when qualifying you for a new purchase. Some lenders have exceptions if you have a signed purchase contract on your current home, but the general rule is that carrying two mortgages at once requires income sufficient to support both. Getting pre-approved first tells you exactly where you stand on that.

Los Angeles County note: Conforming loan limits in Los Angeles County for 2025 were $1,149,825 for a single-family home, the highest available under FHFA guidelines. Loans above that threshold are jumbo loans, which come with different underwriting requirements. If your next purchase falls in that range, make sure the lender you're working with has real jumbo experience, not just a standard conventional process.

The Three Main Strategies

There is no single right answer to "buy first or sell first." The right approach depends on your financial position, your risk tolerance, and the specific dynamics of the market you're buying and selling in. Here are the three paths I walk clients through most often.

Strategy 1: List First, Buy With a Sale Contingency

This is the most common approach, and it's the right starting point for anyone who can't comfortably carry two mortgages at the same time. You get your current home into contract first. That accepted offer gives you the financial clarity to make an offer on your next home, typically with a sale contingency that protects you if something falls through on your existing deal.

The upside is straightforward: lower financial risk. You know what you're netting before you commit to what you're spending.

The downside is that sellers on the other side often push back on contingent offers. A buyer saying "I'll buy your home as long as mine sells" introduces uncertainty from the seller's perspective. In LA County today, this is more negotiable than it was two or three years ago given how much the market has shifted, but it's still a real conversation, not a given.

The way to strengthen a contingent offer: set an aggressive closing timeline on your current sale, have your pre-approval in hand, and come in clean on other terms. The goal is to make your contingency as tight and well-defined as possible so it feels like the smallest possible ask.

Strategy 2: Use a Bridge Loan to Buy Before You Sell

A bridge loan is a short-term loan that lets you access your current home's equity before it actually sells. You use those funds as a down payment on your next home, then repay the bridge loan once your existing property closes.

The big advantage: you can make a non-contingent offer on your next home, which is a meaningful edge in competitive situations. You also get to move into your new home before your old one closes, which eliminates the need for temporary housing or timing-related stress.

The costs are real, though. Bridge loan rates typically run significantly higher than conventional mortgage rates, often in the 8-11% range depending on the lender and your profile. Most lenders also require at least 20-30% equity in your current home, a credit score of 680 or higher, and the income to qualify while carrying both mortgages simultaneously.

The DTI hurdle is the one that knocks out the most borrowers, not the equity test. For example: if your current mortgage is $3,000 per month and your new mortgage would be $5,000 per month, your lender needs to qualify you as if you're paying $8,000 per month in total housing costs. At a standard 43% DTI ceiling, that requires roughly $18,600 per month in gross income. Run those numbers with your lender early, before you fall in love with a strategy that may not work for your situation.

Strategy 3: Coordinate Simultaneous Closings

In some transactions, it's possible to negotiate closing dates on both sides that land on the same day or within a day or two of each other. Your current home closes, the proceeds wire over, and your new home closes with those funds. Clean in theory, and genuinely achievable with the right coordination.

The challenge is that two separate transactions each have their own chain of dependencies: appraisals, loan approvals, inspections, and the schedules of buyers and sellers who may have their own timing needs. When both closings are tightly linked, any delay on one side creates immediate pressure on the other.

This works best when you have experienced representation on both deals, a lender who can close quickly and reliably, and some flexibility built into the move timeline if needed. I'd never advise a client to run this strategy without contingency options behind it.

Contingencies and Leaseback Agreements

Two contract tools come up in almost every simultaneous transaction, and both are worth understanding before you get to the negotiating table.

Sale Contingencies

A sale contingency in your purchase offer means your offer to buy is contingent on the successful close of your current home's sale. It's the thing that protects you from being locked into a purchase you can't fund, but it also adds uncertainty for the seller on the other side.

In California, purchase agreements absolutely include these contingencies, and the terms matter a lot. A well-written sale contingency has a clear close-of-escrow deadline on your existing property, a defined timeline for contingency removal, and typically a kick-out clause provision so the seller can continue marketing if a better offer comes in. How these terms are drafted can make the difference between an offer that gets accepted and one that gets countered or passed on.

This is also why having both a skilled agent and a real estate attorney review your contracts matters. Ambiguous contingency language is how deals get complicated.

Leaseback Agreements

A leaseback, also called a rent-back or post-settlement occupancy agreement, is a contract where the buyer of your current home agrees to let you stay in the property as a tenant for a set period after closing. It buys you time to close on your next home if the two transactions don't land on the same timeline; this arrangement is a legitimate and commonly used tool in exactly this scenario.

In California, lenders generally allow leasebacks of up to 59 days before it starts to conflict with owner-occupancy loan conditions. The terms should always be documented formally, including a daily or monthly rental rate, a security deposit, and a clear move-out deadline.

Not every buyer will agree to this. But in today's market, where sellers have more negotiating room than they did at the peak, it's a real option to put on the table. I've had leaseback arrangements save the transaction more than once.

Closing Coordination: What Can Go Wrong

Even with careful planning, simultaneous transactions carry dependencies that can create real pressure if something slips.

On the sell side, the most common delays are buyer financing issues (their lender takes longer than expected), appraisal gaps (the property comes in below the agreed price, requiring renegotiation), and inspection negotiations that drag timelines out.

On the buy side, the same applies: appraisals, title issues, loan conditions. If you're using the proceeds from your sale to fund your purchase, any delay on the sell side directly affects your ability to close on the buy side.

The way to protect yourself: build real buffer time into your plan. If you think you need to close your existing sale on a Tuesday to close your new purchase on a Thursday, you don't have enough margin. Negotiate contingency removal deadlines and closing dates that give each transaction room to breathe.

It's also worth having a backup plan for the gap. If your current home closes and your new purchase is delayed by a week, where are you and your belongings in the meantime? Short-term furnished rentals and storage solutions are worth identifying before you need them. You probably won't, but having the answer ready takes a lot of anxiety off the table.

Working With the Right Professionals

Simultaneous transactions involve more moving parts than a standard buy or sell. The quality of the people in your corner genuinely matters here.

Your real estate agent needs to understand contract structure well enough to negotiate contingency terms strategically, have real relationships with escrow and title companies who can coordinate across two transactions, and communicate proactively with everyone involved. In my experience, most surprises in a dual transaction are just late information. Good communication eliminates most of them.

Your lender needs to understand the nuances of qualifying you while an existing mortgage is still on the books, and ideally has real experience with bridge financing if that becomes part of your plan.

And a real estate attorney, or at minimum a careful review of all contracts, is worth having. Contingency language, leaseback terms, and the interplay between two simultaneous contracts have legal implications that boilerplate won't protect you from.

When I'm working with clients through a simultaneous transaction, a lot of what I'm doing is in the coordination layer: keeping both timelines aligned, making sure the lender and both escrow teams are actually talking to each other, and flagging anything that could create a gap before it becomes a problem. The transactions are manageable. What makes them stressful is when communication breaks down.

The Bigger Picture

The mechanics of a simultaneous transaction are learnable, and I hope this guide makes them a lot less mysterious. The harder part, honestly, is making clear-headed decisions when the calendar starts putting pressure on you.

When your existing home is already in escrow and you haven't found your next property yet, there's a real temptation to move too quickly on the buy side. To treat the next acceptable house as the right house just because the clock is running. I've watched that play out, and it usually doesn't end well.

The whole point of the planning, pre-approval done, equity picture clear, contingencies structured, backup plans in place, is to give you enough room to make the next decision well. Not just fast.

If you're in LA County and starting to think through a move, I'd love to sit down with you and map out what your specific situation actually looks like. Your equity position, your budget for the next purchase, what the current market timing means for you. No pressure, just a clear starting point.

Reach out anytime, and we'll put a real plan together.

FAQ's

1) Can I make an offer on a new home before my current one sells?

Yes, and plenty of buyers do. The key is how the offer is structured. If you can't qualify for two mortgages at once, your offer will likely need a sale contingency to protect you. If you have a bridge loan or sufficient reserves, you may be able to go non-contingent. The right answer depends on your financial picture and how competitive the listing is. This is a conversation worth having with your agent before you find the property you want, not while you're standing in the kitchen trying to decide.

2) How long does a simultaneous buy-sell take start to finish?

In LA County, plan for 60 to 90 days from the time your existing home goes into contract to the time you're moved into your new place. Standard escrow periods run 21-30 days, but if it's an all-cash or fully underwritten offer, it can be as fast as 7-10 days; adding leaseback time or buffer for any delays can extend that. If you're listing while actively searching, the total timeline from list to move-in typically runs 3 to 5 months for a well-coordinated transaction.

3) What happens if my current home doesn't sell in time?

This is the worry most people carry through the whole process, and having a sale contingency in your purchase contract is exactly the protection designed for it. If your existing home falls out of escrow and you have a contingency on your next purchase, you can typically exit without losing your deposit, depending on exact contract terms. If you've already removed contingencies, your exposure increases. This is why I always advise not removing contingencies until you have genuine certainty on the sell side.

4) Do I have to move out the day my home closes in California?

Not necessarily. A leaseback or rent-back agreement lets you stay in the property as a tenant after the sale closes. The terms, including the daily rate, security deposit, and move-out deadline, are negotiated as part of the purchase contract. Most lenders allow leasebacks of up to 59 days on owner-occupied financing. If you think you'll need more time than that, bring it up early in the process since it affects how the whole deal gets structured.

5) How does Measure ULA affect sellers in the City of Los Angeles?

Measure ULA is an additional transfer tax that applies to sales within the City of Los Angeles (not the broader county) above certain value thresholds. As of July 1, 2025, transactions between $5,300,000 and $10,600,000 are taxed at 4%, and transactions at or above $10,600,000 are taxed at 5.5%. These rates apply to the full transaction value, not just the amount above the threshold. If your property is in the City and near or above these figures, this is a significant number that needs to be in your net proceeds math before you set a listing price or commit to anything on the buy side. The City's Office of Finance publishes the current thresholds and rates.

6) Is this a good time to do a simultaneous buy-sell in LA County?

Compared to the peak years of 2021 and 2022, today's market actually gives buyers and sellers more room to negotiate, including on contingencies and closing timelines. That makes simultaneous transactions more workable than they were during that window. Mortgage rates in the mid-6% range are also meaningfully lower than they were at their 2023-2024 highs, which helps affordability on the buy side. The main thing to be thoughtful about: with homes sitting on the market longer, pricing your existing home accurately from the start matters more than ever. A stale listing creates timeline pressure that can push you into bad decisions on the buying side.