V I E W P O I N T S

Fall 2025 | Article 03/04

Blueprints for conversion: three markets writing the rules on reuse for office

How D.C., Dallas, and Calgary are cracking the conversion code 

Office conversions are hardly a silver bullet. They only work in locations where rules are flexible and incentives are there to help the numbers line up – especially now that the pool of viable buildings is shrinking and costs have climbed.

“Many great sites have become picked over or already selected for other purposes. What we are finding left in these markets as a result are what we call the ‘tweeners,’ the buildings worth little more than land value minus demolition costs, the ones that require immense creativity to make them work. But for those who see and want to work with that potential? It could mean a whole slew of possibilities.”

Joe French
Vice President, Capital Markets Group

How do you know if sites are ideal for office conversion development?

Full conversion potential depends on many factors, but light, layout, and location matter the most. Older, rectangular buildings, with small to mid-sized floorplates and shallow floor depths work best for residential conversions, while walkability, parking, and access to public transit all add to the appeal. 

But sometimes, the truest and best identifier will simply come down to dollars and cents – the ROI expected from the property and bottom-line impacts. 

“Issues like parking, window lines, HVAC systems, and many other considerations determine the cost of conversion and that can be where some of these properties’ potential developments get paused or canceled. It often comes down to the rental revenue the property can generate and the overall property value after the investments are made.”

Stephen Silverstein
Principal, Managing Director, Construction and Project Management

Where are developers finding the greatest rates of success?

Conversions have been most successful in cities that have positioned themselves as pro-development, with streamlined processes, supportive regulations, and targeted incentives. In many cases, a broader mix of uses offers a more sustainable path forward than programs that solely focus on office-to-residential conversions.

What can this look like, ideally?

Read on to learn the policies, incentives, and processes shaping three successful office conversion markets: Washington, D.C., Dallas, Texas, and Calgary, Alberta.

From vacancy to viability: How three top cities are making it work

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Market conditions
WASHINGTON D.C.
Vacancy rate
Class B and C buildings make up around 30% of office vacancies in D.C.

Asset Values
Since 2023, properties have been trading at roughly 50% below their previous price
DALLAS, TX
Vacancy rate
Flight-to-quality is fueling high vacancy rates in class B and C assets.

Population growth
Corporate relocations drive strong population growth and demand for housing.
CALGARY, AB

Decade-long downturn

The office market has not recovered since the 2014-15 oil crash, with consistently high vacancies and low asset prices.

Population growth
Calgary (and Alberta as a whole) have the fastest growing population in Canada due to positive interprovincial migration.

CLASS B/C OFFICE AVAILABILITY BY MARKET

Source: Avison Young Market Intelligence

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Incentive programs
WASHINGTON D.C.
Housing in Downtown (HID)
20-year tax abatement; recently expanded to include Georgetown and Mt. Vernon Triangle.

Office-to-Anything
15-year tax freeze.

More Housing N.O.W in Montgomery County
Zoning amendments and 20-year tax abatement with projects that meet affordability requirements.

Adaptive Reuse Policy (Arlington County)
Cuts entitlement from 12 months to around 4-5 months.
DALLAS, TX

Texas historic tax credit
25-year tax credit
for buildings that are at least 50 years old.

Tax Increment Financing (TIF) 
Funds the redevelopment of underperforming areas using future tax revenues.

Senate Bill 840
Grants by-right zoning flexibility in commercial corridors, with only limited restrictions allowed by municipalities. 

CALGARY, AB

Downtown Calgary Development Incentive Program
The city offers C$75 per square foot, and up to C$15 million per office conversion. Eligible uses include residential, co-living, hotels, schools, and arts centers.

Permissive regulatory environment
In downtown, most buildings don’t require a change-of-use permit, helping developers save time and reduce costs; Necessary approvals are fast-tracked.


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Challenges and opportunities
WASHINGTON D.C.
Historic preservation and height restrictions
Large portions of D.C. face design review, adding time and cost; Height of Building Acts limits commercial buildings to 130 feet.

Tenant purchase law (TOPA) Gives renters the first right to buy, slows sales, but pending reform may exempt newer buildings.

Multifamily rent premiums
With construction costs largely uniform across D.C., feasibility depends on rent premiums. Submarkets like the West End and Dupont generate the higher rents needed to achieve yield-on-cost thresholds, while others fall short. 
DALLAS, TX
NIMBY pushback
Suburban cities are resisting SB 840, with some pursuing lawsuits to block by-right multifamily conversions.

Office boom in the 1980s
A significant portion of Dallas’ office stock is 40 years old, built with large floorplates and an inadequate parking ratio.

Downtown skyscrapers
Large-scale adaptive-reuse projects, with some reaching 1.5 million square feet (msf), require complex financing packages, stacking tax credits, loans, bonds, and grants. 
CALGARY, AB
Success hinges on developer willingness and expertise
Many landlords lack expertise or appetite for conversions, choosing office upgrades over government-backed incentives.

Cost efficiency
Conversions typically cost 75-80% of building new and are faster to execute.

Amenity constraints
Amenities may be fewer than in purpose-built residential buildings, affecting value and marketability. 

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Conversion activity
WASHINGTON D.C.
Completed projects since 2020
2,446,498 msf converted to a new use.

Number of offices eligible for MF conversion
10,586,034 msf meet the basic conversion criteria of being built before 1990 and having a floor plate of under 30,000 sf with an availability of over 35%.
DALLAS, TX
Completed projects since 2020
2,175,533 msf converted to a new use.

Number of offices eligible for MF conversion
12,724,670 msf meet the basic conversion criteria.
CALGARY, AB
Completed projects since 2020
15 buildings totaling 2 msf converted to multifamily or hotel (14% of class B and C inventory downtown).

Number of offices eligible for MF conversion
Another 1.8 msf is under consideration for conversion.

CONVERSION ACTIVITY BY MARKET

Source: Avison Young Market Intelligence

A skyline of Calgary
An icon of a target with an arrow
Outcomes
WASHINGTON D.C.
Office market rightsizing
Since 2018, 2.4 msf have been converted, and 6.2 msf are in the pipeline, totaling about 5% of the city’s office inventory. 

Including Georgetown in HID unlocked the redevelopment of 31% of its pre-pandemic office stock.

Economic and social
Conversions have been catalytic in turning Downtown D.C. into a mixed-use hub. 

Converted buildings are trading at the same cap rate as purpose-built multifamily assets.
DALLAS, TX
Office market
Removing outdated class B/C space helped ease office vacancy, while competition for trophy assets is spurring updates to remaining class B stock.

Economic and social
Downtown is becoming more walkable, safer, and better connected. 

National developers are attracted by downtown’s strong performance, with occupancy around 90% and rents of $2.25–$4 psf in converted luxury apartments like The Sinclair.
CALGARY, AB
Office market
As the oil and gas sector continues to downsize, conversions and a lack of new office development are helping restore balance.

Economic and social
For the first time in 15 years, the inner city is seeing a real residential boom. Downtown, once dependent on oil and gas, is becoming more diverse and vibrant, as new mixed-income housing, schools, and hotels reshape the core. 

Since 2022, assessed downtown property values have increased by $1.8 billion. 

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Insights
WASHINGTON D.C.
“In D.C., one pattern is hard to miss: 87% of office-to-residential conversions involve pre-1990 buildings, and more than half sit on corner sites. It’s a clear reminder that successful conversions hinge less on vintage or location alone, and more on fundamentals like natural light, efficient floorplates, and the premium visibility and unit frontage that corner sites provide.”

Joe French, Vice President,
Capital Markets Group
DALLAS, TX
“The character of downtown Dallas is changing; 52-story skyscrapers are now mixed-use hubs, with luxury apartments, offices, retail, and hospitality.”

Susan Gwin Burks, Senior Vice President, Capital Markets Group
CALGARY, AB
"In Calgary, the first thing the city did was get rid of all the red tape. So, if you wanted to change your use, it wasn’t asking permission, it was telling the city.”

Walsh Mannas, Principal, Capital Markets Group, Calgary

From red tape to green lights: government policy’s role in office development

While converting empty offices can help revitalize struggling downtowns, restore asset values, or bring more housing where it’s needed, the viability of conversions often depends almost entirely on government policies and incentives. 

Whether it’s tax abatements, expedited approval processes, or zoning flexibility, municipalities that signal a clear green light to developers will be far better positioned to help their cities transform empty offices into vibrant buildings.

Calgary, Dallas, and D.C. demonstrate that a diverse mix of strategies is crucial for successful conversion projects. Aligning incentives with market realities can make challenging projects feasible and attract developers, proving that it can be a powerful tool for reviving cities. 

Breathing new life into the city core? That’s where real estate can help lead a true renaissance. 

Reach out to our experts to learn more about how to make the most of this opportunity.

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