Cap rate alone won't tell you whether an NYC commercial property is a good investment. You have to weigh going-in yield against rent profile, capex exposure, regulatory risk (rent stabilization, Local Law 97 emissions), tenant credit, submarket trajectory, financing math, exit assumptions, and your own cost of capital. In this market the gap between a great investment and a value trap rarely shows up in the marketing package. You find it in diligence, in conservative underwriting, and in having seen the same pattern on prior deals. Below is the framework Robert Khodadadian and the Skyline Properties team use to judge NYC commercial real estate, built across $976M+ of closed transactions.
Beyond cap rate: how to frame an NYC investment
Cap rate is fine for triage. As an investment view it leaves out most of what matters. A 5.0% cap on a free-market Manhattan multifamily building with stable rents and little capex is a different investment from a 5.0% cap on a rent-stabilized building with deferred Local Law 11 facade work and a half-empty retail unit at grade. Same cap rate. Very different deal.
So translate the cap rate into numbers that hold up: stabilized cash yield after a realistic capex reserve, levered cash-on-cash, levered IRR over a 5-, 7-, or 10-year hold, and after-tax levered IRR. Each of those needs assumptions on rent growth, expense growth, capex timing, exit cap rate, debt structure, and tax treatment. Good NYC underwriting comes down to how honest those assumptions are.
The framework below starts with cap-rate triage and works through the variables that actually move NYC commercial real estate returns.
Income quality comes first
Rent roll integrity
Audit every line of the rent roll. On NYC multifamily, that means checking the DHCR registration for every stabilized unit, pulling the lease for every free-market unit, reconciling security deposits, and looking for any pending rent reduction or overcharge case. NYC rent rolls are full of reporting errors, so you verify every time. On office and retail, abstract every lease: base rent, escalations, how expenses are reimbursed (NNN, modified gross, or gross), TI obligations, free-rent periods, renewal options, and termination rights.
Tenant credit and concentration
On office and retail, tenant credit sets the value. A 100% leased building anchored by an investment-grade tenant trades at a noticeably tighter cap rate than one leased to local credits. Concentration is a serious underwriting problem: one tenant in 30%+ of the building with a lease rolling soon. On NYC multifamily, credit varies less, but tenure and the stabilized/free-market mix matter.
Lease structure and escalations
NNN leases pass operating expenses through to tenants, so base rent growth flows straight to NOI. Under modified gross and gross leases the landlord keeps the expense risk, and expense growth eats some or all of the rent growth. NYC office leases are usually modified gross with operating-expense escalations over a base year; retail leases are usually NNN with CAM reimbursement. You can't project NOI until you know which structure you're looking at.
Expense side: where the math usually breaks
Operating expenses are where buyers from outside NYC make their biggest underwriting mistakes. Property tax is usually the largest line and swings widely with tax class, abatement status, where the transitional assessment sits in its phase-in, and exposure to reassessment. A building whose J-51 or 421-a abatement burns off in three years has a tax bill coming that today's expense statement doesn't show.
The other big lines: heat and hot water (heavy in older multifamily, especially steam-heated buildings), water and sewer (NYC rates go up every year), insurance (NYC commercial property coverage has hardened a lot this cycle), payroll (super, doorman, and porters, union or non-union), repairs and maintenance (buildings with deferred maintenance cost more to run), and management.
Test every pro forma expense against three years of historical operating statements, line by line. Buyers who take the seller's pro forma at face value overpay. Buyers who build their own expense model from scratch regularly find $50K–$500K a year of overstated NOI on a typical Manhattan multifamily acquisition.
Capex and regulatory exposure
The biggest unbudgeted cost in NYC commercial real estate is the regulatory capex that lands in years one through five of ownership. The main items:
- Local Law 11 facade inspection and repair: required every five years on buildings six stories and taller. Typical scope runs $200K–$2M+ depending on building size and condition.
- Local Law 97 emissions compliance: buildings above 25,000 SF must meet emissions limits that started in 2024 and tighten in 2030. Fines run $268 per metric ton of CO2 over the limit. On older multifamily and office, the retrofit bill can be large.
- Elevator modernization: required at regulated intervals; typically $200K–$500K per elevator.
- Boiler replacement: typical lifespan 25–30 years; replacement runs $250K–$1M+ depending on the system.
- Roof replacement: typical lifespan 20–30 years; cost depends on size and complexity.
- Parapet repair and masonry repointing: comes in bursts, but the bills are large on pre-war stock.
- Asbestos abatement on pre-1980 buildings during any major work.
- Lead-based paint and Window Guard compliance on residential.
An engineering inspection during diligence gives you a five-year capex plan. Carry it straight into the reserve line of your underwriting. Buyers who skip that step and find the capex after closing end up with lower IRRs than they underwrote, almost every time.
Submarket trajectory: where the asset sits in NYC
NYC is dozens of markets, and the direction of the submarket matters a great deal. Upper East Side multifamily, the Williamsburg waterfront, SoHo retail, Madison Avenue retail, Chelsea development sites, DUMBO office, Lincoln Square Class A, Financial District conversion candidates: each has its own rent profile, vacancy trend, capex profile, and exit cap rate.
So ask a narrower question than 'is NYC commercial real estate a good investment'. Ask 'is this asset class, in this submarket, at this basis, a good investment'. Good buyers weigh the submarket trend against where this particular building stands in it: the block, the building quality, the tenant mix, and the capex profile.
Financing math: levered returns and refinance risk
A 6.0% unlevered yield on an NYC commercial property can turn into very different levered returns depending on the debt. At 65% LTV and 6.5% interest on stabilized debt, levered cash-on-cash comes in above the unlevered yield. Finance the same deal with 75% LTV bridge debt at SOFR + 400 bps and you may have negative leverage in year one.
Refinance risk at stabilization is the first thing to underwrite on any value-add deal being bought in NYC right now. Sponsors who underwrite to today's take-out debt (an agency or balance-sheet refinance at stabilized DSCR) are getting deals done. Sponsors still underwriting to 2021 financing assumptions keep re-trading or walking. Stress-test the refinance line hard.
Exit assumption: the most variable line in any pro forma
Every NYC commercial real estate pro forma ends with an exit assumption: hold period, stabilized NOI at exit, exit cap rate, and sale costs. Small changes in any one of them compound through the IRR. Move the exit cap rate 50 basis points on a Manhattan multifamily building and IRR can move 300+ basis points.
Good buyers run sensitivities on the exit and underwrite to the median case, never the optimistic one. The test we use: does the deal still work if the exit cap rate is 75 bps wider than going-in, stabilized NOI comes in 10% below the pro forma, and the hold runs two years longer than planned? If it fails those tests, it isn't a good investment at the asking basis.
After-tax IRR: the number investors actually keep
Pre-tax IRR is good for comparing deals. The investor lives on the after-tax number. NYC commercial real estate throws off real tax shelter through depreciation (accelerated with cost segregation), interest expense, and operating losses. 1031 deferral, opportunity zone treatment, and entity structuring move the after-tax result further.
Experienced NYC investors plan the tax side at acquisition. Against a buyer who treats tax as an afterthought, the after-tax IRR advantage is routinely 200–400 basis points on equivalent deals, roughly as much as submarket selection or capex discipline contributes on its own.
The most underrated skill: walking away
Across $976M+ of closed transactions, the buyers we've seen outperform share one habit: they walk from deals that don't survive honest underwriting. A buyer's average IRR depends as much on the deals they pass on as on the ones they close.
An NYC commercial property is a good investment when the basis still produces a return under a realistic downside, capex is fully reserved, the financing has been stress-tested, the exit is set to what the submarket supports today, and the return beats the buyer's own cost of capital. Most deals fall short of that. The skill is saying no and waiting for the ones that clear it.
Frequently asked questions
- What is a good cap rate for NYC commercial real estate?
- It depends on asset class, submarket, building quality, and rent profile. Free-market Manhattan multifamily currently clears at 4.50–5.75%. Rent-stabilized multifamily trades at 5.50–7.25%, trophy retail at 4.25–5.50%, and Class A trophy office in the low 5s. Class B office no longer trades on a stabilized cap rate; it prices as a conversion residual. Whether a cap rate is 'good' comes down to the asset and the basis. A 5.0% cap on a well-located, stabilized free-market Manhattan multifamily building can be excellent, and a 6.5% cap on a deteriorating stabilized building with deferred capex can be a value trap.
- How do I evaluate a rent-stabilized NYC apartment building investment?
- Since HSTPA, there's far less value-add upside in stabilized buildings. Judge them on stabilized cash yield, not future rent increases. Audit the DHCR registration history. Reserve for Local Law 11 and Local Law 97 capex. Verify the tax assessment and how long any abatement has left. Underwrite to the rules as they stand today, not to legislation you hope will pass. At the right basis a stabilized building can be an excellent long-term income investment. It is no longer a dependable value-add play.
- What is the most common NYC commercial real estate investment mistake?
- Underestimating capex. NYC buildings carry heavy deferred maintenance, Local Law 11 facade exposure, Local Law 97 emissions exposure, and regulatory capex that out-of-town buyers underbudget again and again. An engineering inspection during diligence that produces a five-year capex plan is the best money a buyer spends in underwriting.
- How long does it take to underwrite an NYC commercial property properly?
- Initial screen: 2–5 business days once you have the full marketing materials. Full underwriting to an investment-committee LOI: 1–3 weeks on institutional deals. Diligence: 30–60 days after the LOI. Buyers who squeeze those timelines past the point where diligence holds up get worse outcomes than buyers who take the time they need.
- Should I use Skyline Properties to evaluate a commercial property?
- Skyline Properties provides a free, no-obligation, confidential Broker Opinion of Value built for the specific asset and submarket. The BOV draws on $976M+ of closed transactions, ongoing conversations with NYC capital sources, and submarket-level rent and cap rate data. Buyers underwriting a specific target and owners thinking about a sale usually start there.