How Are Commercial Buildings Valued? The Complete Los Angeles Underwriting Guide

Commercial buildings in Los Angeles are valued through three core methods: income capitalization (dividing net operating income by a cap rate), comparable sales (price per square foot adjusted for differences), and replacement cost (land value plus construction cost minus depreciation). Income capitalization dominates for stabilized, cash-flowing properties, while comps provide the reality check and replacement cost sets the floor for land and redevelopment plays. Right now in Los Angeles, valuation is less about the formula and more about the inputs: cap rates have expanded 80 to 150 basis points across most product types since 2021, debt is available but expensive and selective, and investor appetite has bifurcated sharply between best-in-class assets in Ultra-High wealth tier submarkets and everything else.

I cover all of Southern California, but this week I'm focused on Los Angeles because the region's wealth concentration and product diversity make it the best lens for understanding how valuation actually works in practice. The spread between a stabilized office building in Beverly Hills and a value-add flex property in Culver City can be 300 basis points on cap rate and $200 per square foot on price, and both deals can close in the same month. That range isn't noise, it's the market telling you exactly what different capital sources will pay for different risk profiles. Valuation isn't a number you calculate in a vacuum, it's the intersection of what a building generates, what debt you can layer on it, and what return an equity investor requires to wire the rest.

The Three Valuation Methods and When Each Drives the Deal

Income Capitalization: The Workhorse for Stabilized Assets

Income capitalization is the primary valuation method for any commercial property generating consistent cash flow. You take trailing twelve months net operating income (revenue minus operating expenses, excluding debt service and capital expenditures) and divide by a cap rate to arrive at value. If a building generates $1 million in NOI and trades at a 6% cap rate, it's worth $16.67 million. Simple math, but the entire negotiation revolves around which NOI number you use and which cap rate you defend.

Buyers push for trailing twelve months NOI because it's auditable and reflects actual performance. Sellers push for pro forma NOI, which assumes market rents on renewal, lease-up of vacant space, and expense reductions the current owner never achieved. The delta between the two can be 15% to 30% on a value-add deal, which translates directly to millions of dollars in purchase price. In Los Angeles right now, with office vacancy sitting at 18% in Century City, 12% in Beverly Hills, and 14% in Santa Monica, the fight over TTM versus pro forma is the fight over who bears the lease-up risk and at what price.

Cap rates in Los Angeles have moved significantly since 2021. Ultra-High wealth tier office properties in Beverly Hills and Century City that traded at 4.5% to 5.0% caps in 2021 are now trading at 5.5% to 7.2%, depending on tenant quality and lease term. Industrial and flex/R&D properties in El Segundo and Culver City have held tighter, with stabilized assets still trading in the 4.5% to 5.5% range because demand for those product types remains strong and vacancy is materially lower (4% industrial vacancy in El Segundo, 5% in Culver City). A fully leased R&D facility in El Segundo recently traded at $27.2 million, or $480 per square foot, leased to Rivian on a triple-net basis. That price reflects not just the income stream but the credit quality of the tenant and the scarcity of that product type in a constrained submarket. If the same building were 50% vacant, you'd be looking at a 6.5% to 7.5% cap rate and a corresponding haircut in value.

Cap rate selection isn't arbitrary. It's driven by comparable sales in the submarket, the cost and availability of debt, and the equity investor's return requirement. If a buyer can secure 60% leverage at 6.5% interest, they need the unlevered yield (the cap rate) to exceed that cost by enough margin to justify the equity risk. Right now, that's pushing many stabilized office deals into the 6% to 7% cap rate range even in strong submarkets, because debt is expensive and equity is demanding 12% to 15% cash-on-cash returns after leverage. Industrial deals are getting more aggressive pricing because the cash flow is more predictable and the tenant pool is broader.

Comparable Sales: The Reality Check

Comparable sales analysis takes recently closed transactions for similar properties in the same submarket and adjusts for differences in size, age, tenant quality, and lease structure. Buyers and brokers both run comps, often arriving at different conclusions because the adjustment process is subjective. In practice, comps serve two roles: they set the outer bounds of reasonable pricing, and they give lenders confidence that the valuation isn't inflated.

Office comps in Los Angeles show wide variance right now. A Class A building in Beverly Hills with a stable tenant roster and long-weighted average lease term might trade at $650 per square foot, while a similar-vintage building in Pasadena trades at $425 because the submarket is perceived as secondary (even though Pasadena's 15% office vacancy and 6% industrial vacancy suggest decent fundamentals). The spread reflects location prestige, tenant quality, and which capital sources are active in each market. Beverly Hills draws institutional capital and high-net-worth family offices; Pasadena draws regional investors and value-add funds.

Industrial comps in submarkets like El Segundo and Culver City are tighter. Price per square foot tends to cluster within a 10% to 15% band for similar-quality buildings, because the product is more fungible and the buyer pool is more diverse (users, regional investors, REITs, private equity). A modern flex/R&D building in Culver City might trade at $400 to $500 per square foot depending on clear height, dock doors, and office finish percentage. Land comps are the wild card. Entitled land in Pacific Palisades or Bel Air can trade at prices that make sense only if you believe the high-end user or developer market will remain strong for the next five years. One lot in a prime location can trade at $300 per buildable square foot while another two blocks away sits unsold at $225, and the difference comes down to entitlements, visibility, and timing.

Comp analysis requires judgment. You can't just average three sales and call it a day. You adjust for lease term (shorter term requires a discount), tenant credit (single-tenant net lease to Amazon is worth more than multi-tenant gross lease to local firms), and deferred maintenance (a building needing a new roof and HVAC system in the next 24 months gets docked $20 to $40 per square foot). In a market like Los Angeles, where submarkets can be separated by five miles and three cap rate points, the comp set you choose determines the story you tell.

Replacement Cost: The Floor for Land and Redevelopment

Replacement cost is the sum of land value plus the cost to build the improvements new, minus depreciation. It sets a floor on valuation for development sites and a ceiling for existing buildings (because no rational buyer pays more for an old building than they'd pay to build a new one). In practice, replacement cost is most relevant for land deals, adaptive reuse, and buildings so functionally obsolete that they're really just land with a demolition cost attached.

In submarkets like Century City, Bel Air, and Santa Monica, land values are high enough that replacement cost often exceeds what existing buildings trade for on an income basis. A 40-year-old office building generating $2 million in NOI at a 6.5% cap is worth $30.8 million on an income basis, but the land alone might be worth $20 million and a new building would cost $60 million to deliver. That spread creates the value-add opportunity: buy the old building, hold it through lease-up or repositioning, and either sell into a market that values the new income stream or redevelop entirely if the zoning and economics support it. Right now, with construction costs elevated and entitlement timelines unpredictable, replacement cost is more of a thought exercise than a transaction driver, except in cases where a buyer has a specific use in mind (user purchase, land assembly, etc.).

For land deals, replacement cost is the lens. A developer looks at what they can build, what it will cost (hard costs currently running $350 to $500 per square foot for office and flex/R&D in Los Angeles depending on finish level, site work, and parking), what they can sell or lease the finished product for, and works backward to determine what they can pay for the dirt. If a new office building in Century City can achieve $60 per square foot in rent and trade at a 6% cap upon stabilization, the developer can justify a certain land price. If construction financing is available at 65% loan-to-cost and equity partners are requiring a 20% internal rate of return, the land price drops accordingly. Replacement cost doesn't set value in isolation; it sets the ceiling on how much a specific use case can afford to pay.

You can explore the full process for investment sales and valuation to understand how I walk through these three methods with clients and arrive at a defensible listing price or offer.

Cap Rates, Debt, and Investor Appetite in Los Angeles Right Now

Cap Rate Spreads Across Submarkets and Product Types

Cap rates in Los Angeles have widened across the board, but not uniformly. Office has taken the most punishment, with stabilized assets in secondary submarkets now trading at 7% to 8.5% caps (up from 5.5% to 6.5% in 2021). Ultra-High wealth tier submarkets like Beverly Hills, Century City, and Santa Monica have held better, with Class A buildings still trading in the 5.5% to 7.0% range if the tenant roster is strong and the lease profile provides runway. The Los Angeles regional map shows where wealth and business density concentrate, and those are the submarkets where institutional capital is still active and cap rates have held tightest.

Industrial and flex/R&D cap rates have expanded too, but only 50 to 80 basis points in most cases. El Segundo, with its 4% industrial vacancy and proximity to LAX, continues to attract capital at sub-5% cap rates for stabilized assets. Culver City is similar: 5% industrial vacancy, strong entertainment and creative office demand, and cap rates in the 4.5% to 5.5% range for quality buildings. The $27.2 million Rivian deal in El Segundo pencils out to roughly a 5.7% cap rate if you assume market rent and triple-net structure, which tells you that single-tenant credit deals are still commanding tight pricing even in a higher-rate environment.

The cap rate you achieve depends on the story you can tell. A building with 80% occupancy, three years of weighted average lease term, and investment-grade tenants will trade 150 to 200 basis points tighter than a building with 50% occupancy and leases rolling in the next 18 months. The latter isn't a bad deal; it's a different deal, and the buyer pool shifts from core institutional investors to value-add funds and high-net-worth individuals willing to take lease-up risk in exchange for higher returns. In Los Angeles, where submarkets like Pasadena and Culver City offer both stabilized product and value-add opportunities within a few blocks, understanding which cap rate applies to your building is half the battle.

Debt Availability and Its Impact on Pricing

Debt drives value, period. A buyer who can secure 65% loan-to-value at a 6.5% rate can pay more for the same building than a buyer stuck at 50% leverage or 7.5% interest. Right now, debt is available in Los Angeles, but it's selective and expensive. Agency lenders (Fannie Mae, Freddie Mac) and life insurance companies are active on stabilized, multi-tenant office and industrial properties with strong occupancy and credit tenants. Conduit (CMBS) lenders are back in the market but pickier than they were in 2021, requiring higher debt service coverage ratios (1.25x to 1.35x) and lower leverage (60% to 65% LTV). Regional and local banks are writing smaller loans on assets they understand, but pricing has crept up and loan-to-value has crept down.

The math is straightforward. If a building generates $1 million in NOI and you need 1.30x debt service coverage to get a loan, the maximum annual debt service is $769,000. At a 6.5% interest rate and 25-year amortization, that supports roughly $10 million in debt. If the building is worth $16 million on a 6.25% cap rate, the buyer needs to bring $6 million in equity. If debt were cheaper or more available (say, $11 million at 5.5%), the buyer could pay $17 million because the equity requirement stays the same. That $1 million swing is the difference between winning and losing a bid, and it's entirely a function of what debt markets will support.

Right now, lenders are underwriting to in-place NOI with minimal credit for lease-up or rent growth. That's a change from 2021, when pro forma underwriting was more common and loan proceeds reflected optimistic assumptions. The pendulum has swung back to conservatism, which means sellers need to either accept lower proceeds or find buyers with more equity (family offices, high-net-worth individuals, opportunity funds). In submarkets like Beverly Hills and Century City, where Ultra-High wealth tier buyers often write larger equity checks, the impact is less severe. In submarkets like Pasadena or Culver City, where regional investors are more common, tighter debt has compressed values by 10% to 15% from peak.

Investor Appetite: Who's Buying What and Why

Investor appetite in Los Angeles has bifurcated. Institutional capital (REITs, pension funds, insurance companies) is focused on best-in-class assets in the strongest submarkets, willing to accept sub-6% cap rates for buildings that offer long-term cash flow stability and minimal management risk. These buyers are active in Beverly Hills, Century City, and Santa Monica for office, and in El Segundo and Culver City for industrial and flex/R&D. They're looking at lease term, tenant diversity, and building quality, and they're underwriting to a 10-year hold with modest rent growth assumptions.

Value-add and opportunity funds are active in secondary submarkets and on buildings with hair (vacancy, near-term rollover, deferred maintenance). These buyers are targeting 12% to 18% internal rates of return, which requires buying at a discount to stabilized value and executing a business plan (lease-up, repositioning, or redevelopment). They're comfortable with the lease-up risk in submarkets like Pasadena or the adaptive reuse opportunity in older office buildings that can be converted to creative office or alternative use. They're also the buyers willing to take on land deals in Pacific Palisades or Bel Air, where the payoff is long-dated and requires entitlement execution.

High-net-worth individuals and family offices are buying across the spectrum. Some are buying stabilized income for wealth preservation, willing to accept 5% to 6% returns in exchange for hard-asset exposure in a submarket they know. Others are buying value-add deals because they have operating platforms and local market knowledge that lets them execute faster and cheaper than institutional buyers. In Los Angeles, where wealth density is extreme in certain zip codes (Bel Air at $209,531 average household income, Pacific Palisades at $192,500), there's a steady flow of capital from people who live in these submarkets and want to own commercial real estate close to home. That capital doesn't always move through traditional channels, and it often shows up as all-cash or high-equity-percentage offers that can close faster than levered institutional bids.

The complete guide to investment sales and valuation breaks down the full buyer landscape and what each capital source is looking for in 2026.

The Real Inputs That Drive Valuation: What Buyers Underwrite

Net Operating Income: The Fight Over TTM vs. Pro Forma

Net operating income is revenue minus operating expenses, and the number you use determines the value you arrive at. Revenue is actual rent collected (or in some cases, contractual rent owed but not collected, which becomes a negotiation point if there's delinquency). Operating expenses include property taxes, insurance, utilities (if the landlord pays them), property management, repairs and maintenance, and common area maintenance. They do not include debt service, capital expenditures, or leasing costs (tenant improvements and commissions).

Buyers underwrite to trailing twelve months because it's real. Sellers want to use pro forma because it reflects what the building should generate once vacant space is leased and rents are marked to market. The gap between the two can be enormous on a value-add deal. Take a 50,000-square-foot office building in Culver City that's 60% leased at $3.00 per square foot when market rent is $3.50. Trailing twelve months NOI might be $800,000 (60% of 50,000 square feet at $3.00, minus $300,000 in operating expenses). Pro forma NOI at stabilization is $1.4 million (100% leased at $3.50, minus $325,000 in expenses). At a 6% cap rate, TTM value is $13.3 million and pro forma value is $23.3 million. The seller wants $20 million. The buyer offers $14 million plus the cost of lease-up. The negotiation is over who takes the lease-up risk and how that risk gets priced.

In Los Angeles right now, with office vacancy elevated across most submarkets, buyers are discounting pro forma heavily. They're assuming 12 to 24 months to lease vacant space, tenant improvement costs of $40 to $80 per square foot depending on product type, and leasing commissions of 4% to 6% of total lease value. They're also assuming some downtime and rent concessions (three to six months free rent is standard on new deals). All of that gets deducted from the pro forma value, and what's left is what they're willing to pay. Sellers who understand this math price accordingly. Sellers who don't end up chasing the market down.

Operating Expense Assumptions and Where Buyers Find Fat

Operating expenses are where buyers find upside, and where inexperienced sellers leave money on the table. A buyer will take your trailing twelve months operating expenses and compare them to market benchmarks for similar buildings. If your property management fee is 5% of gross revenue and market is 3% to 4%, they're going to underwrite to the lower number and call the difference operational upside. If your insurance cost is $0.60 per square foot and they think they can get it for $0.45, same story. If your utility bill seems high because you're not passing through costs to tenants the way the market does, they'll adjust for that too.

Common areas where buyers find expense savings: property management (often inflated if the current owner uses a full-service firm for a building that doesn't need it), insurance (buyers with portfolio-scale coverage can often get better rates), utilities (especially if the building can be submetered and costs pushed to tenants), and repairs and maintenance (if the current owner has been deferring work, the buyer will lowball the ongoing cost and highball the upfront capex). A building showing $6.00 per square foot in operating expenses on an owner's T-12 might get underwritten at $5.25 by a buyer, and that $0.75 per square foot gap on a 50,000-square-foot building is $37,500 in NOI, which at a 6% cap rate is $625,000 in value.

Property taxes are the big fixed expense, and they reset on sale. In California, Proposition 13 limits annual increases to 2% until a property changes hands, at which point it gets reassessed to the purchase price. A building you bought for $10 million in 2010 might have a tax bill based on that old assessed value, but when it sells for $18 million in 2026, the new owner's tax bill resets to reflect the higher value. Buyers account for this in their underwriting, which means the pro forma operating expense number they use will be higher than your trailing twelve months even if everything else stays flat. In submarkets like Beverly Hills and Century City, where property values are high, the tax reset can add $0.50 to $1.00 per square foot to annual operating expenses, which directly reduces NOI and value.

Lease Structure, Tenant Credit, and the Term Premium

Not all leases are created equal in a buyer's eyes. A ten-year triple-net lease to a Fortune 500 tenant is worth more than a three-year gross lease to a local startup, even if the rent per square foot is identical. The reason: certainty. The triple-net lease shifts all operating expenses to the tenant, eliminating the landlord's exposure to cost increases. The long term means the buyer doesn't have to worry about re-leasing or market rent risk for a decade. The credit tenant means default risk is minimal. All of that reduces the buyer's required return, which tightens the cap rate and increases the price they'll pay.

In Los Angeles, tenant credit varies widely by submarket and product type. Office buildings in Beverly Hills and Century City often have law firms, financial services firms, and entertainment companies as tenants, many of which are privately held but financially strong. Industrial and flex/R&D buildings