Unlocking Wealth: The Smart Investor’s Guide to Land Investment

The Smart Investor’s Guide to Land Investment: Unlocking Wealth Through Strategic Land Ownership

Investing in land has long been a cornerstone of wealth-building, offering stability, appreciation potential, and diversification benefits. Unlike stocks or bonds, land is a tangible asset that doesn’t depreciate over time—and in many cases, it appreciates significantly. For the smart investor, land represents an opportunity to secure long-term financial growth while minimizing risk. However, success in land investment requires more than just capital; it demands strategic planning, market awareness, and an understanding of zoning laws, market trends, and financing options. This guide breaks down the essentials of land investment, helping you navigate the process with confidence.

Why Land Investment Stands Out in Today’s Market

Land investment is often overlooked in favor of more liquid assets, but it remains one of the most resilient and profitable investment strategies available. Here’s why land should be on your radar:

• Tangible Asset with Intrinsic Value: Unlike stocks or cryptocurrencies, land is a physical asset that cannot be erased or devalued by market crashes. Its value is rooted in scarcity, location, and utility, making it a hedge against inflation.
• Appreciation Over Time: Historically, land values rise steadily, especially in high-demand areas. While short-term fluctuations can occur, well-chosen land parcels tend to appreciate significantly over decades.
• Passive Income Potential: Land can generate steady cash flow through leasing for agricultural, commercial, or recreational use. For example, leasing farmland or allowing cell towers to be built on your property can provide recurring revenue.
• Diversification Benefits: Adding land to your investment portfolio reduces exposure to volatile markets. Real estate, including land, often moves independently of stocks and bonds, providing balance.
• Tax Advantages: Depending on your location, landowners can benefit from tax deductions, depreciation (for income-generating land), and capital gains exclusions. Consult a tax professional to maximize these benefits.

While land investment isn’t without challenges—such as illiquidity, high upfront costs, and regulatory hurdles—its advantages make it a compelling option for investors seeking stability and long-term growth.

Key Types of Land Investments to Consider

Not all land is created equal. The type of land you invest in will determine its potential returns, risks, and management requirements. Here are the primary categories of land investments:

1. Raw or Undeveloped Land

This refers to land that has not been subdivided, zoned, or improved in any way. It’s often the most affordable entry point for investors but requires patience and vision.

• Pros: Lower purchase price, no immediate development costs, potential for future appreciation if the area grows.
• Cons: No immediate income, higher carrying costs (taxes, maintenance), longer wait for returns.
• Best for: Investors with a long-term horizon who believe in the future growth of a region.

2. Residential Land

Residential land is subdivided for housing development, such as single-family lots, townhomes, or multi-family units. This type of land is in high demand in growing urban and suburban areas.

• Pros: Strong demand from homebuyers and developers, potential for quick profits if rezoned for higher-density housing, easier to finance.
• Cons: Higher initial cost, subject to zoning changes and local regulations, competitive market.
• Best for: Investors looking for a balance between risk and reward, with the ability to hold or sell quickly.

3. Commercial Land

Commercial land is intended for business use, such as office buildings, retail centers, industrial parks, or mixed-use developments. This land often commands higher prices but also offers substantial returns.

• Pros: Higher income potential through leasing, longer-term tenant leases, potential for significant appreciation.
• Cons: Higher upfront costs, complex zoning and permitting processes, more sensitive to economic downturns.
• Best for: Experienced investors with industry connections and a higher risk tolerance.

4. Agricultural Land

Agricultural land includes farmland, vineyards, ranches, and timberland. This type of investment can be lucrative, especially for investors interested in sustainable agriculture or timber production.

• Pros: Steady income from leasing to farmers, potential for government subsidies, diversification into a non-cyclical industry.
• Cons: Requires specialized knowledge, subject to weather and commodity price fluctuations, higher maintenance costs.
• Best for: Investors with an interest in agriculture or those looking for a steady, long-term income stream.

5. Recreational or Special-Use Land

This category includes land zoned for recreational purposes, such as hunting grounds, campgrounds, golf courses, or conservation easements. It’s a niche market but can be highly profitable if managed well.

• Pros: Unique revenue streams (e.g., membership fees, event rentals), potential for tax incentives if used for conservation.
• Cons: Narrow buyer pool, seasonal income fluctuations, higher management requirements.
• Best for: Investors with a passion for outdoor recreation or sustainable land use.

Choosing the right type of land depends on your financial goals, risk tolerance, and personal interests. A diversified land portfolio may include a mix of these categories to balance risk and reward.

How to Evaluate Land for Investment: The 5 Critical Factors

Not all land is a good investment. Before committing your capital, you must conduct thorough due diligence. Here are the five most important factors to consider when evaluating a land parcel:

1. Location and Accessibility

Location is the single most important factor in land value. A prime parcel in a growing area will appreciate faster than a similarly sized plot in a stagnant or declining region. Key considerations include:

• Proximity to Urban Centers: Land near cities or major highways tends to appreciate faster due to demand for housing, commercial development, and infrastructure.
• Access to Amenities: Look for land near schools, hospitals, shopping centers, and public transportation. These factors increase the land’s desirability and resale value.
• Transportation Links: Easy access to roads, airports, and ports enhances the land’s utility for residential, commercial, or industrial use.
• Future Development Plans: Research local government plans for new highways, transit systems, or zoning changes that could boost land values.

Tip: Use tools like Google Earth, county assessor websites, and local planning departments to assess a property’s location and potential.

2. Zoning and Land Use Regulations

Zoning laws dictate how land can be used, and violating these regulations can lead to costly fines or legal issues. Before purchasing, verify the following:

• Current Zoning: Is the land zoned for residential, commercial, agricultural, or mixed-use? Can it be changed?
• Future Zoning Changes: Are there pending rezoning applications in the area? Could the land be reclassified for higher-value use?
• Restrictions and Covenants: Some land comes with deed restrictions (e.g., no commercial use) or homeowners’ association rules that limit your options.
• Environmental Regulations: Wetlands, flood zones, or protected habitats may restrict development. Conduct an environmental site assessment if necessary.

Tip: Consult a real estate attorney or land-use planner to navigate zoning complexities and avoid surprises.

3. Topography and Soil Quality

The physical characteristics of the land affect its usability, development costs, and long-term value. Key considerations include:

• Elevation and Drainage: Flat, well-drained land is easier and cheaper to build on than steep or flood-prone terrain.
• Soil Composition: Fertile soil is essential for agricultural land, while rocky or unstable soil may increase construction costs.
• Contamination: Former industrial sites or land with hazardous materials (e.g., asbestos, chemicals) may require costly cleanup before development.
• Vegetation and Wildlife: Dense forests, endangered species habitats, or invasive plant species can complicate development plans.

Tip: Request a professional survey and soil test to assess the land’s physical attributes before purchasing.

4. Market Trends and Economic Indicators

Understanding local and national market trends helps you identify high-growth areas and avoid declining markets. Research the following:

• Population Growth: Areas with rising populations and job opportunities tend to have strong land demand.
• Economic Activity: Look for regions with expanding industries, new businesses, or infrastructure projects (e.g., tech hubs, manufacturing plants).
• Housing Demand: In residential markets, analyze home sales trends, rental rates, and vacancy rates.
• Interest Rates and Financing: Low interest rates make land purchases more affordable, while high rates can discourage investment.
• Comparable Sales: Study recent sales of similar properties in the area to gauge fair market value.

Tip: Use resources like Zillow, Realtor.com, county assessor databases, and local economic development agencies to gather market data.

5. Infrastructure and Development Potential

Land with existing or planned infrastructure is far more valuable than raw, undeveloped parcels. Assess the following:

• Utilities: Does the land have access to water, sewer, electricity, and internet? If not, connecting these services can be expensive.
• Road Access: Is the land accessible via public roads, or will you need to create private access points?
• Permitting and Approvals: How long does it take to obtain permits for development in the area? Are there moratoriums on new construction?
• Future Infrastructure Projects: Upcoming highways, transit lines, or utility expansions can dramatically increase land value.

Tip: Contact the local planning department to inquire about upcoming infrastructure projects that could benefit the land.

Financing Your Land Investment: Options and Strategies

Unlike residential real estate, land investments are harder to finance. Traditional mortgages are less common for raw land, and lenders often require higher down payments and stricter terms. Here are the most common financing options for land investors:

1. Cash Purchase

Paying in full with cash is the simplest and most straightforward method, offering several advantages:

• No Financing Contingencies: Avoid loan approval delays or falling through.
• Stronger Negotiation Position: Sellers often prefer cash buyers in competitive markets.
• Lower Total Cost: No interest payments or lender fees.

However, cash purchases tie up significant capital, so they’re best suited for investors with liquid assets or those making smaller purchases.

2. Land Loans

Land loans are specialized mortgages designed for purchasing undeveloped land. They typically come with higher interest rates and shorter terms than traditional mortgages due to the higher risk involved.

• Types of Land Loans:
  • Raw Land Loans: For undeveloped parcels with no infrastructure.
  • Lot Loans: For subdivided residential lots with basic utilities.
  • Construction Loans: For land intended for immediate development (often converts to a mortgage after building completion).
• Lender Requirements: Down payments typically range from 20% to 50%, and credit scores must be strong (often 700+).
• Where to Get Land Loans: Credit unions, local banks, and online lenders like LightStream or Farm Credit Services.

Tip: Compare loan terms from multiple lenders to secure the best interest rate and repayment schedule.

3. Seller Financing

In seller financing (also called owner financing), the seller acts as the lender, allowing the buyer to make payments directly to them over time. This arrangement is common for land sales and offers flexibility for both parties.

• Advantages:
  • Easier qualification (no bank credit checks).
  • Lower or no down payment requirements.
  • Negotiable interest rates and terms.
• Disadvantages:
  • Higher interest rates than traditional loans.
  • Risk of seller default if terms are violated.
• Best For: Buyers with poor credit or those seeking non-traditional financing.

Tip: Always formalize seller financing agreements with a real estate attorney to protect both parties.

4. Home Equity Loans or Lines of Credit (HELOC)

If you already own property, you can leverage its equity to finance a land purchase. This option provides lower interest rates than land loans but puts your existing property at risk.

• How It Works: Borrow against the equity in your home to fund the land purchase.
• Pros: Lower interest rates, flexible repayment terms, tax-deductible interest (consult a tax advisor).
• Cons: If you default, you risk losing your primary residence.

Tip: Use a HELOC only if you’re confident in your ability to repay and the land’s potential ROI justifies the risk.

5. Private Lenders and Partnerships

Private lenders (individuals or investment groups) can provide capital in exchange for a share of profits or a fixed return. This option is useful for investors who can’t secure traditional financing.

• How It Works: Negotiate loan terms (interest rate, repayment schedule, collateral) directly with the lender.
• Pros: Faster approval, flexible terms, no bank restrictions.
• Cons: Higher interest rates, potential loss of control over the investment.
• Best For: Investors with a solid business plan who need quick capital.

Tip: Always draft a formal agreement outlining repayment terms, profit-sharing, and default consequences.

6. Government Programs and Grants

Certain government programs offer financing or grants for land purchases, particularly for agricultural, conservation, or rural development purposes.

• USDA Loans: For rural land purchases, including farmland and timberland.
• FSA Loans: Farm Service Agency loans for beginning farmers or ranchers.
• Conservation Grants: Programs like the USDA’s Conservation Reserve Program (CRP) offer incentives for preserving environmentally sensitive land.
• State and Local Programs: Many states offer tax incentives, low-interest loans, or grants for land conservation or affordable housing development.

Tip: Research programs in your state and consult the USDA or local economic development offices for eligibility requirements.

Step-by-Step Process for Purchasing Land

Buying land is a multi-stage process that requires careful planning and execution. Follow these steps to ensure a smooth and profitable transaction:

Step 1: Define Your Investment Goals and Budget

Before searching for land, clarify your objectives:

• Short-Term vs. Long-Term: Are you looking for quick profits (flipping) or long-term appreciation (holding)?
• Income Generation: Do you want to lease the land or develop it yourself?
• Budget: Determine how much you can spend upfront and how much you’re willing to invest in development, taxes, and maintenance.

Tip: Create a detailed financial plan, including projected ROI, exit strategies, and contingency funds for unexpected costs.

Step 2: Research and Identify Potential Parcels

Use online platforms, real estate agents, and local networks to find land that aligns with your goals:

• Online Listings: Websites like LandWatch, LandAndFarm, and LoopNet specialize in land sales.
• Local Realtors: Work with agents who specialize in land transactions—they often have off-market deals.
• Auctions: Government auctions (e.g., for tax liens or foreclosures) and live auctions can offer below-market prices.
• Networking: Attend local real estate investor meetings or join land investment groups to hear about opportunities.

Tip: Focus on high-growth areas with strong economic fundamentals and limited land supply.

Step 3: Conduct Due Diligence

Never skip this critical step. Due diligence involves verifying the land’s legal, financial, and physical attributes:

• Title Search: Ensure the seller has a clear title and no liens or ownership disputes.
• Zoning Verification: Confirm the land’s current and potential zoning status with the local planning department.
• Environmental Assessment: Check for contamination, wetlands, or protected habitats that could restrict use.
• Survey and Boundary Confirmation: Hire a licensed surveyor to verify the property’s size, boundaries, and encroachments.
• Utility and Infrastructure Check: Determine if the land has access to water, sewer, electricity, and internet.
• Market Analysis: Compare recent sales of similar properties to assess fair market value.

Tip: Hire professionals—attorneys, surveyors, and environmental consultants—to conduct due diligence and avoid costly mistakes.

Step 4: Secure Financing

Based on your budget and the land’s characteristics, choose the best financing option:

• Compare loan terms from multiple lenders (banks, credit unions, private lenders).
• Negotiate terms with the seller for owner financing if applicable.
• Prepare financial documents (tax returns, bank statements, credit reports) for lender approval.

Tip: Get pre-approved before making an offer to strengthen your negotiating position.

Step 5: Make an Offer and Negotiate

Once you’ve identified a promising parcel, submit a competitive offer. Key negotiation tips include:

• Start Below Asking Price: Offer 10-20% below asking price, especially if the land has been on the market for a while.
• Include Contingencies: Add clauses for financing, inspections, and zoning approvals to protect yourself.
• Seller Financing Option: Propose owner financing if traditional financing is difficult to secure.
• Flexible Terms: Be open to creative financing (e.g., lease-to-own) if it benefits both parties.

Tip: Work with a real estate attorney to draft a purchase agreement that protects your interests.

Step 6: Close the Deal

The final step involves signing legal documents and transferring ownership. Key closing steps include:

• Title Transfer: The seller signs the deed over to you, and the title is recorded with the county.
• Funding: The lender disburses the loan funds (if applicable), or you wire the purchase price to the seller.
• Closing Costs: Pay fees for title insurance, recording fees, transfer taxes, and attorney fees (typically 2-5% of the purchase price).
• Insurance: Purchase property insurance and, if applicable, liability coverage.

Tip: Review all closing documents carefully before signing to ensure accuracy.

Step 7: Manage and Develop Your Land

After purchasing, your work isn’t done. Effective land management can maximize returns:

• Leasing: Rent the land to farmers, hunters, or businesses to generate passive income.
• Development: Subdivide the land, obtain permits, and build residential or commercial properties.
• Conservation: Enroll in conservation programs to earn tax credits or government payments.
• Monitoring: Keep track of local zoning changes, market trends, and property taxes to make informed decisions.

Tip: Consider hiring a property management company if you’re not local or lack experience in land development.

Common Mistakes to Avoid in Land Investment

Even experienced investors make costly errors in land investment. Here are the most common pitfalls and how to avoid them:

• Ignoring Zoning and Regulations: Purchasing land without verifying zoning can lead to costly legal battles or inability to develop. Solution: Always confirm zoning with the local planning department before buying.
• Overestimating Short-Term Appreciation: Land rarely appreciates quickly. Expect to hold for 5-10+ years for significant gains. Solution: Focus on long-term potential, not speculative flips.
• Underestimating Carrying Costs: Taxes, insurance, maintenance, and financing costs add up. Many investors underestimate these expenses. Solution: Calculate all annual costs and include them in your budget.
• Skipping Due Diligence: Not verifying title, surveys, or environmental issues can result in hidden liabilities. Solution: Hire professionals to conduct thorough due diligence.
• Overleveraging: Taking on too much debt can be risky, especially if the land doesn’t generate income. Solution: Maintain a conservative loan-to-value ratio (e.g., 50% or less).
• Falling for “Too Good to Be True” Deals: Sellers may exaggerate a property’s potential or hide defects. Solution: Be skeptical of deals that seem unrealistic and verify all claims.
• Neglecting Exit Strategies: Not having a plan for selling or developing the land can leave you stuck with an illiquid asset. Solution: Define your exit strategy before purchasing.

Tax Strategies for Land Investors

Land investment offers several tax advantages, but maximizing these benefits requires careful planning. Here are key tax strategies to consider:

1. Capital Gains Tax Deferral

• 1031 Exchange: This IRS provision allows you to defer capital gains taxes by reinvesting proceeds from a land sale into another “like-kind” property within 45 days. Example: Sell a residential lot and use the proceeds to purchase farmland without paying immediate taxes.
• Qualified Opportunity Zones (QOZs): Invest in economically distressed areas through a QOZ fund to defer or reduce capital gains taxes. Benefit: Up to 10% tax exclusion if held for 5+ years, and full exclusion after 10 years.

2. Depreciation and Deductions

• Depreciation: If you develop the land (e.g., build rental properties), you can depreciate the improvements over 27.5 years (residential) or 39 years (commercial) for tax deductions.
• Property Tax Deductions: Deduct annual property taxes from your taxable income.
• Interest Deductions: Deduct mortgage interest payments on loans used to purchase the land.

3. Conservation Easements

• Tax Deductions: Donating a conservation easement (a legal agreement restricting development to preserve land) can provide a one-time tax deduction of up to 30% of your adjusted gross income (AGI), with a 15-year carryforward.
• Example: If you own 100 acres of undeveloped land, grant a conservation easement to a land trust, reducing your taxable income.

4. Like-Kind Exchanges for Multiple Parcels

• Combining Parcels: If you own multiple small land parcels, a 1031 exchange allows you to consolidate them into a single larger property, simplifying management and increasing value.

5. State-Specific Incentives

• Green Energy Credits: Some states offer tax credits for installing renewable energy systems (e.g., solar panels) on agricultural or rural land.
• Agricultural Exemptions: Certain states provide property tax reductions for land used for farming or timber production.

Tip: Consult a certified public accountant (CPA) or tax attorney to tailor these strategies to your specific situation and maximize savings.

Future Trends in Land Investment: What Smart Investors Should Watch

The land investment landscape is evolving, influenced by technological advancements, demographic shifts, and environmental concerns. Staying ahead of these trends can give you a competitive edge. Here are the top trends to watch:

1. Urban Sprawl and Suburban Revival

As remote work becomes permanent for many, suburban and exurban areas are experiencing a resurgence. Investors are focusing on:

• Edge Cities: Land near major metropolitan areas but outside core urban centers is becoming highly desirable for residential and mixed-use development.
• Infill Development: Purchasing small, scattered parcels in urban areas to assemble larger development sites.
• Transit-Oriented Development (TOD): Land near public transit hubs (e.g., light rail, bus rapid transit) is appreciating faster due to demand for car-free living.

2. Sustainable and Regenerative Agriculture

With climate change concerns and consumer demand for organic food, sustainable agriculture is booming. Key opportunities include:

• Organic Farmland: Certifying land for organic farming can increase its value and attract premium pricing for crops.
• Carbon Farming: Practices like cover cropping and agroforestry sequester carbon, making land eligible for carbon credit programs.
• Vertical Farming: Urban and indoor farming on small land parcels is gaining traction, offering high returns in dense areas.

3. Renewable Energy Land Leasing

Solar farms, wind farms, and battery storage facilities require large tracts of land, creating new investment opportunities:

• Solar Leasing: Landowners can lease their property to solar developers for 20-30 years, earning steady income with minimal effort.
• Wind Energy: Wind farms are often located in rural areas with consistent wind patterns, offering long-term leases to utility companies.
• Energy Storage: As renewable energy grows, demand for land to host battery storage facilities is increasing.

4. Short-Term Rental and Glamping Land

The rise of short-term vacation rentals (e.g., Airbnb, VRBO) has expanded into rural and recreational land:

• Glamping Sites: Investors are converting raw land into luxury camping destinations with yurts, tiny homes, or treehouses.
• Hunting and Fishing Leases: Private landowners can lease hunting rights to sportsmen, generating $10-$50 per acre annually.
• Eco-Tourism: Land with natural attractions (lakes, forests, waterfalls) can be developed for guided tours, retreats, or outdoor education programs.

5. Remote and Digital Land Ownership

The digital economy is creating new forms of land investment:

• Metaverse Land: Virtual real estate in platforms like Decentraland or The Sandbox is selling for millions, attracting tech-savvy investors.
• Data Center Land: With the growth of cloud computing, land near data centers (e.g., in rural areas with cheap electricity) is in high demand.
• Cell Tower and 5G Land: Wireless carriers lease land for towers, offering long-term income with minimal maintenance.

6. Water Rights and Waterfront Land

Water scarcity is driving up the value of water rights and waterfront property:

• Water Rights: In Western states, owning water rights can be more valuable than the land itself. These rights can be leased or sold separately.
• Lakefront and Riverfront Land: Recreational and residential demand for waterfront properties is surging, especially in drought-prone areas.
• Desalination and Irrigation: Land with access to water sources is ideal for farming, resorts, or industrial use.

7. Climate-Resilient Land Investing

As climate change intensifies, investors are prioritizing land that is resilient to natural disasters:

• Higher Elevation: Land less prone to flooding or wildfires is more valuable long-term.
• Sustainable Land Management:
• Techniques like controlled burns, reforestation, and wetland restoration reduce disaster risk.
• Insurance Incentives: Some insurers offer discounts for properties with climate-resilient features.

Building a Diversified Land Investment Portfolio

A well-diversified land portfolio balances risk, income potential, and growth opportunities. Here’s how to structure your investments for long-term success:

Step 1: Allocate Assets by Type

Spread your investments across different land types to mitigate risk:

• 40% Residential: High demand, but subject to market cycles.
• 30% Commercial: Higher returns but more sensitive to economic downturns.
• 15% Agricultural: Steady income but slower appreciation.
• 10% Raw/Undeveloped: High risk/reward, ideal for long-term holds.
• 5% Niche/Alternative: Recreational, conservation, or digital land for diversification.

Step 2: Diversify by Location

Avoid putting all your capital into one region. Instead, invest in multiple markets with varying economic drivers:

• Primary Markets: High-growth urban areas (e.g., Austin, Nashville).
• Secondary Markets: Emerging cities with lower costs (e.g., Raleigh, Boise).
• Rural/Remote: Low-density areas with agricultural or recreational potential.
• International: Opportunities in stable countries with growing economies (e.g., Canada, Australia).

Step 3: Balance Income and Appreciation

Combine properties that generate immediate income with those held for long-term appreciation:

• Income-Generating: Leased farmland, cell tower sites, rental lots.
• Appreciation-Focused: Raw land in high-growth areas, conservation easements.

Step 4: Use Different Holding Periods

Align your investments with your timeline:

• Short-Term (1-3 years): Flipping subdivided lots, leasing for events.
• Medium-Term (3-10 years): Holding land for rezoning or infrastructure improvements.
• Long-Term (10+ years): Raw land in growing regions, conservation properties.

Step 5: Reinvest Profits Strategically

Use income from one property to fund acquisitions in higher-growth areas:

• 1031 Exchanges: Reinvest proceeds from a sale into another property to defer taxes.
• Leverage Equity: Use appreciated land as collateral for loans to purchase additional properties.
• Diversify Further: Add new asset classes (e.g., REITs, timberland) to reduce concentration risk.

Final Thoughts: Is Land Investment Right for You?

Land investment is not a get-rich-quick scheme—it’s a long-term wealth-building strategy that rewards patience, research, and strategic planning. While it comes with challenges such as illiquidity, regulatory hurdles, and carrying costs, the potential rewards are substantial: steady income, tax advantages, diversification, and appreciation that outpaces inflation.

Before diving in, ask yourself:

• Do I have the capital to invest in land? (Land requires significant upfront costs and carrying expenses.)
• Am I comfortable with a long-term hold? (Land rarely appreciates quickly.)
• Do I understand the local market and regulations? (Zoning, permits, and environmental laws vary widely.)
• Can I manage the land effectively? (Leasing, development, or conservation require effort.)
• What is my exit strategy? (Selling, leasing, developing, or holding for heirs?)

If you’re ready to take the plunge, start small—perhaps with a recreational or agricultural parcel—and gradually build your portfolio. Educate yourself continuously, network with other land investors, and stay adaptable as market trends evolve.

Land investment is a journey, not a destination. With the right approach, it can unlock generational wealth and financial freedom. Are you ready to begin?

Tags: financial growth land investment real estate investing smart investing wealth building