Discounted Cash Flow Valuation for Commercial Property Explained

Book: Commercial Property Valuation: Methods and Case Studies
Authors: Giacomo Morri, Paolo Benedetto
ISBN: 9781119512127 (hardback), 9781119512134 (ePDF), 9781119512158 (ePub)

If direct capitalisation is a photograph, discounted cash flow (DCF) is a movie. That metaphor from Morri and Benedetto stuck with me through Chapter 6 part two. A photo works for a still scene. A movie works when things move. Property income moves. Leases expire. Rents step up. Capex hits. Vacancy appears. DCF is built for that.

When to use DCF

Use DCF when income is not stabilised:

• Partial vacancy
• Over-rented or under-rented leases
• Major refurbishment ahead
• Development or land with no current income
• Portfolios or schemes with unsold units

Direct cap needs two market-observable inputs. DCF needs forecasts. That is more work and more judgment. But forcing a messy asset into a cap rate formula creates fake precision.

The four steps

1. Choose the time horizon

Properties last decades. Your forecasting ability does not. Pick the shortest horizon that captures the instability, then stabilise.

Common practice: 10 to 15 years, or roughly the remaining lease term. But the authors argue for shorter when possible. Every extra year adds growth assumptions and discount rate risk.

Key rule: the horizon is not tied to the current owner’s plan to sell. Market value is independent of whether this fund liquidates in two years.

Example: a building with eight years left on the lease, three years until cash flows stabilise after renovation, owned by a fund selling in two years. A three-year horizon to stabilisation is reasonable. Ignore the fund’s two-year exit plan and the eight-year lease length as horizon drivers.

Frequency: Annual is common for long horizons. Quarterly or half-yearly for shorter, more volatile cash flows. Monthly for complex rent rolls. Match frequency to your discount rate.

2. Estimate cash flows

Cash flow = money the owner actually receives minus money the owner pays, per period.

Revenue side:

• Passing rent while leases run
• Other income (parking, signage, etc.)
• Minus vacancy and credit loss
• After lease expiry: ERV (reversion to market)

Cost side:

• Operating expenses when incurred (not averaged, in theory)
• Investments when incurred: CapEx, tenant improvements, leasing fees
• Marketing and brokerage costs

Unlike direct cap, you do not provision 5% per year for a lift replacement due in 20 years. You book the full cost in the year it happens. In practice, valuers still smooth some items when timing is uncertain. The book admits this. The principle matters even when reality is messy.

Tenant turnover costs belong here. TI, leasing fees, void periods between tenants. Direct cap annualises these. DCF schedules them.

3. Estimate terminal value

You cannot forecast forever. At the end of your horizon, you assume a sale (or perpetual income capitalisation). Terminal value often dominates the result, especially with low discount rates and short horizons.

Two methods:

Direct capitalisation (most commercial assets): Terminal Value = Stabilised income in year N+1 / Going-out cap rate (GOCR)

Direct comparison (some land/residential development): Terminal value = future sale price of built units from comps

Pick whichever method has better data. Going-out cap rates are estimated, not extracted from today’s market. That makes terminal value one of the weakest links in any DCF. The book is blunt about this.

4. Discount and sum

Present Value = sum of each period’s cash flow divided by (1 + discount rate)^t

Example 6.3: five years of €300 cash flow, €5,000 terminal value in year 5, 10% discount rate. Present value ≈ €4,056. Most of that comes from the discounted terminal value (€3,105 in year 5 becomes ~€1,928 present value… actually the example shows €3,104.61 discounted).

Higher discount rate = lower present value. That is not just math. It reflects higher perceived risk in future cash flows.

Market value vs investment value in DCF

This sidebar matters if you work on acquisitions, not just appraisals.

Market value DCF:

• Pre-tax operating cash flows
• Market WACC (no specific buyer’s tax or leverage)
• Assumptions reflect most likely market use

Investment value DCF:

• Can use after-tax flows
• Can use levered equity cash flows (FCFE)
• Discount at the specific investor’s cost of capital
• Same building, different value for different buyers

Market price ends up being set by the marginal buyer. The investor who actually closes. That buyer changes over time based on liquidity, risk appetite, tax status, and what else they could buy instead.

Advantages and limitations

Advantages:

• Handles unstable income properly
• Forces you to spell out assumptions on rent, costs, capex, and growth
• Easy sensitivity testing (what if rent grows 2% not 3%?)
• Works for land and development with only outflows at first

Limitations:

• Discount rate is hard to defend (valuers write 20 pages on the building and two lines on the rate)
• Terminal value paradox: to value today, you must guess value far in the future
• A detailed spreadsheet can create false confidence
• More parameters = more places to be wrong

The authors warn: a beautiful model with bad inputs is still a bad valuation. Garbage in, garbage out, just with better formatting.

The photo vs movie test

Ask yourself:

• Is income stable, fully let, at market rent, with no big capex coming? Photo (direct cap).
• Are leases rolling, rents off-market, voids present, or capex scheduled? Movie (DCF).

Morri and Benedetto are not anti-DCF. They are anti-using the wrong tool because it looks more sophisticated. Sometimes the sophisticated tool is correct. Sometimes it is a 40-tab spreadsheet built to justify a number someone already wanted.

What comes next

DCF gives you the cash flows. You still need the discount rate and cap rates to close the math. Chapter 7 is entirely about property return rates. The residual value methods (Chapter 6 part 3) show how the same DCF framework values land and development sites.

Read those next if you want the full income valuation toolkit.

Previous: Direct Capitalisation Approach · Next: Residual Value Methods