How Much Does it Cost to Build a 100-Unit Apartment Complex?
Building a 100-unit apartment complex can cost between $9 million to $72 million, depending on various factors like location and construction quality. On average, commercial construction expenses range from $180 to $480 per square foot. These costs translate into the mentioned range for a complex totaling approximately 50,000 to 150,000 square feet. Factors influencing costs include land prices, materials used, labor costs, and additional amenities or infrastructure needs. Detailed planning and budgeting are essential to ensure financial feasibility and adherence to local building codes and regulations.

Factors Affecting Apartment Complex Construction Costs
Constructing an apartment complex involves multiple projects managed by various professionals. The costs of each project vary based on factors such as material quality, local labor rates, and unit sizes.
Factor | Average Cost per Square Foot |
Foundation | $6.00 – $39.60 |
Framing | $13.20 – $36.00 |
Drywall | $1.80 – $4.20 |
Flooring | $4.80 – $18.00 |
Plumbing | $4.80 – $6.00 |
Interior Trim | $4.80 – $12.00 |
Siding | $4.80 – $15.60 |
Roof | $3.60 – $7.20 |
Insulation | $1.20 – $5.40 |
Electrical Wiring | $4.80 – $10.80 |
HVAC System | $3.60 – $7.20 |
Interior Painting | $1.20 – $3.60 |
Countertops | $60.00 – $180.00 |
Doors | $270 – $2,280 each |
Windows | $540 – $1,800 each |
Light Fixtures | $84 – $360 each |
Toilets | $420 – $960 each |
Sinks | $396 – $1,560 each |
Cabinets | $180 – $600 per linear foot |
Appliances | $3,000 – $8,160 per kitchen |
Several factors significantly influence the cost of constructing an apartment complex:
- Apartment Sizes: The cost of construction varies significantly depending on the size and configuration of the apartments. A mid-rise complex typically spans 5 to 10 stories with approximately 50 units. Construction costs per square foot can range from $100 to $230 for such projects, translating to total costs between $200,000 and $460,000 for a two-unit duplex. Larger complexes with more units or higher floors generally incur higher costs due to increased materials and labor requirements.
- Apartment Design: The level of design and amenities chosen for the apartments also impacts costs. Basic fixtures and standard finishes cost less compared to luxury materials and high-end amenities. While luxury high-rise apartments may cost more upfront to build, they often command higher rental rates, potentially increasing long-term profitability.
- Region: Location plays a crucial role in construction costs. Building apartments on the East or West Coast tends to be more expensive than in the Midwest or Southern regions of the United States. Factors such as land availability, local labor costs, and regulatory requirements can vary significantly across different regions, influencing overall project expenses.
- Land: Acquiring suitable land is a prerequisite for constructing an apartment complex. Land prices vary widely depending on location, proximity to urban centers, amenities, and size. Costs can range from $1,500 to $200,000 per acre or more, with prime locations commanding higher prices. Conducting a thorough analysis of land costs is essential during the project planning phase to ensure feasibility within the budget.
- Hard vs. Soft Costs: Building costs are categorized into hard costs, which include direct expenses like materials, labor, and utilities, and soft costs, encompassing design fees, permits, inspections, and other administrative expenses. Soft costs typically constitute 20% to 30% of the total project budget and are crucial for ensuring compliance with building codes and regulations.
- Financing: Securing financing for apartment construction involves additional costs such as loan processing fees and interest payments. The terms and conditions of financing can significantly impact the overall project budget, requiring careful financial planning and assessment of borrowing costs.
- Maintenance: Beyond construction, ongoing maintenance costs must be factored into the budget. These include expenses for utilities, landscaping, and upkeep of amenities such as elevators, gyms, pools, and laundry facilities. Planning for these ongoing expenses ensures the long-term sustainability and attractiveness of the apartment complex to tenants.
- Building Permits: Obtaining necessary building permits is a critical step in the construction process. General contractors typically handle the permit application process, including fees, which are often included in their overall labor charges. It’s essential to conduct thorough research on zoning regulations and permit requirements for multifamily housing before purchasing land to avoid potential delays or restrictions.
Labor
Before commencing construction on an apartment complex, hiring various professionals is essential for designing the building, ensuring the feasibility of the land and plans, and initiating construction:
- An architect typically charges between $120 to $300 per hour.
- A structural engineer’s services range from $120 to $264 per hour.
- The cost of a general contractor varies from $60 to $180 per hour.
- Hiring an interior designer typically costs between $60 to $240 per hour.
- Electrician services are priced at $60 to $156 per hour.
- Plumbing services range from $54 to $180 per hour.

Apartment Building Process
The process of constructing an apartment complex generally unfolds in three main stages:
- Pre-construction: This initial phase is often the most extensive and involves crucial tasks such as establishing a budget, securing financing, and engaging professionals like architects and builders.
- Construction: During this phase, the actual building takes place. Activities include laying the foundation, erecting walls, installing the roof, setting up utilities, fitting fixtures, applying paint, and laying floors.
- Post-construction: Once the construction is complete, this stage focuses on tasks such as site cleanup, finalizing payments to contractors and suppliers, conducting inspections to ensure compliance with regulations, and preparing the property for occupancy by finding tenants or buyers.
Cost of Commercial Construction By Type
The cost of constructing commercial buildings varies significantly depending on their purpose, with different types requiring specific features and materials. High-rise office buildings, museums, and luxury hotels typically incur the highest expenses, while warehouses and parking garages are comparatively less costly.
Here’s a breakdown of average construction costs per square foot for various commercial building types:
Type | Average Cost per Square Foot |
Office building | $288 – $1,200 |
School or university | $360 – $1,008 |
Manufacturing facility | $252 – $960 |
Hospital or clinic | $540 – $1,224 |
Hotel | $156 – $660 |
Apartment building | $180 – $480 |
Community building | $516 – $1,524 |
Shopping center | $444 – $696 |
Parking | $84 – $252 |
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- Multi-Family Building
- Hotel Building
- Hospital Building
- Warehouse Building
- High-Rise Building
- Shopping Complex
Office Building
The construction cost of office buildings varies significantly based on size and number of floors. A single-story office averages $345.60 to $633.60 per square foot, with costs rising to $475.20 to $1,252.80 per square foot for mid-rise buildings. High-rise offices are the most expensive, ranging from $619.20 to $1,440 per square foot due to higher material costs, complex designs, and extensive structural requirements. Multi-story offices generally incur higher expenses due to the use of premium materials, increased labor costs for complex designs, and adherence to stricter building codes.
School or University
Educational buildings have diverse construction costs depending on their type and functions. Elementary, middle, or high school buildings cost $432 to $547.20 per square foot to accommodate educational needs effectively. University buildings vary in costs:
- Dormitories range from $432 to $504 per square foot, focusing on student accommodations.
- Classroom buildings cost between $720 to $950.40 per square foot, prioritizing educational spaces.
- Administrative buildings range from $792 to $936 per square foot, supporting administrative functions.
- Laboratory buildings are the most expensive, ranging from $1,008 to $1,209.60 per square foot due to specialized equipment and stringent safety requirements.
Manufacturing Facility
Manufacturing facilities encompass a wide range of costs depending on their specific functions and technological needs. Basic warehouses are relatively affordable, ranging from $252 to $960 per square foot. Facilities requiring advanced electrical or security systems incur higher costs due to specialized infrastructure needs and regulatory compliance.
Hospital or Clinic
Hospitals, primary care clinics, and healthcare facilities have varying construction costs based on their specialized requirements. Costs range from $648 to $1,468.80 per square foot. Medical offices are on the lower end of the spectrum, designed for routine healthcare services. Specialty clinics and critical care facilities, needing advanced medical equipment and specialized infrastructure, are at the higher end of the cost range due to stringent regulatory requirements and specialized building materials.

Hotel
The construction cost for hotels varies widely based on their category, room sizes, amenities, and location. On average, hotels cost $187.20 to $792 per square foot to build. Three- or four-star hotels are generally less expensive to construct compared to luxurious five-star hotels, which feature high-quality finishes, upscale amenities, and larger rooms, driving up construction costs significantly.
Apartment Building
Building an apartment complex involves costs ranging from $216 to $480 per square foot, translating to $4.56 million to $36 million for a mid-rise complex with 50 units. Costs vary based on unit sizes, building location, quality of construction materials, and amenities provided. Larger apartment complexes often benefit from economies of scale in construction but require careful planning to manage costs effectively.
Community Building
Public community buildings serve diverse purposes and thus have varying construction costs. Police stations, government administrative buildings, and leisure facilities cost between $516 to $1,224 per square foot, depending on their size and specific requirements. Museums and performing arts centers, requiring specialized spaces and environmental controls, range from $936 to $1,828.80 per square foot due to the need for exhibition spaces, theaters, and high-quality finishes.
Shopping Center
Shopping centers and malls vary in construction costs based on their size, design complexity, and amenities offered. Costs typically range from $528 to $696 per square foot, excluding parking structures. Larger shopping centers with additional features like entertainment venues, restaurants, or movie theaters tend to have higher construction costs compared to smaller strip malls, which focus primarily on retail spaces.
Parking Garage
Building a parking garage involves costs ranging from $100.80 to $302.40 per square foot. Underground or multi-level garages are more expensive to construct due to excavation costs, ventilation requirements, and structural reinforcement. Surface-level parking lots are generally more cost-effective but may require extensive land preparation and surfacing.
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Conclusion
Constructing a 100-unit apartment complex entails significant financial planning, with costs ranging from $10.8 million to $86.4 million, reflecting an increase due to the average commercial construction costs of $216 to $480 per square foot. Factors influencing these expenses include location, construction quality, and additional amenities. Regional variations in land prices, material costs, and labor rates also play a crucial role in determining overall project expenditures. Thorough budgeting and adherence to building codes are essential for ensuring the feasibility and success of such developments. From pre-construction planning to post-construction maintenance, every phase demands careful management to achieve a sustainable and profitable apartment complex. Understanding these complexities helps stakeholders navigate the challenges of real estate development effectively.
FAQs
Building a 100-unit apartment complex can cost between $9 million to $72 million. This wide range depends on factors such as location, construction quality, and specific project requirements. On average, commercial construction costs range from $180 to $480 per square foot, translating to approximately 50,000 to 150,000 square feet for a 100-unit complex.
Several factors affect construction costs, including:
- Apartment Sizes: Larger or more units generally lead to higher costs due to increased materials and labor.
- Apartment Design: The level of luxury or standard finishes chosen impacts overall expenses.
- Region: Location significantly affects costs, with urban areas typically more expensive than suburban or rural settings.
- Land Costs: Prices for land vary widely based on location, amenities, and size, impacting total project expenditures.
- Hard vs. Soft Costs: Direct construction expenses versus administrative and design fees also influence the budget.
- Financing and Maintenance: Costs related to securing funding and ongoing maintenance must be considered for long-term financial planning.
Here are average costs per square foot for key construction elements:
- Foundation: $6.00 – $39.60
- Framing: $13.20 – $36.00
- Drywall: $1.80 – $4.20
- Flooring: $4.80 – $18.00
- Plumbing: $4.80 – $6.00
- Interior Trim: $4.80 – $12.00
- Siding: $4.80 – $15.60
- Roof: $3.60 – $7.20
- Insulation: $1.20 – $5.40
- Electrical Wiring: $4.80 – $10.80
- HVAC System: $3.60 – $7.20
- Interior Painting: $1.20 – $3.60
- Countertops: $60.00 – $180.00
- Doors: $270 – $2,280 each
- Windows: $540 – $1,800 each
- Light Fixtures: $84 – $360 each
- Toilets: $420 – $960 each
- Sinks: $396 – $1,560 each
- Cabinets: $180 – $600 per linear foot
- Appliances: $3,000 – $8,160 per kitchen
The construction process typically involves three main stages:
- Pre-construction: Planning, budgeting, securing financing, and engaging professionals like architects and builders.
- Construction: Actual building activities such as laying the foundation, erecting walls, installing utilities, and finishing interiors.
- Post-construction: Finalizing payments, conducting inspections, and preparing the property for occupancy by tenants or buyers.
Commercial construction costs per square foot vary by building type:
- Office Building: $288 – $1,200
- School or University: $360 – $1,008
- Manufacturing Facility: $252 – $960
- Hospital or Clinic: $540 – $1,224
- Hotel: $156 – $660
- Apartment Building: $180 – $480
- Community Building: $516 – $1,524
- Shopping Center: $444 – $696
- Parking: $84 – $252
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