Choosing between a single or double concrete garage is one of the most important decisions homeowners will make when investing in a permanent outdoor structure in 2026. While both options provide excellent durability, security, and long term value, the right choice depends on how you use your space today and how you may need to use it in the future.
This guide compares single vs double concrete garages from a practical, financial, and long term perspective, with a clear professional opinion at the end.
What Is a Single Concrete Garage?
A single concrete garage is designed to accommodate one standard vehicle, typically measuring around 16ft x 8ft to 18ft x 9ft, depending on manufacturer and door size. It is a popular choice for homeowners with limited space or a straightforward storage requirement.
Advantages of a Single Concrete Garage
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Lower upfront cost
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Smaller footprint, ideal for compact driveways
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Faster installation
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Lower groundwork and base costs
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Easier to heat and insulate
Limitations
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Limited storage space once a vehicle is parked
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Less flexibility for future use
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Can feel restrictive if household needs grow
What Is a Double Concrete Garage?
A double concrete garage typically measures 16ft x 16ft, 18ft x 16ft, or larger, providing space for two vehicles or one vehicle plus extensive storage or workspace.
Advantages of a Double Concrete Garage
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Significantly more usable internal space
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Ideal for multi vehicle households
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Space for storage, tools, bikes, or a workshop
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Better long term flexibility
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Stronger resale appeal
Limitations
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Higher initial cost
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Requires more land and a larger concrete base
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Slightly longer installation time
Cost Comparison: Single vs Double Concrete Garages (2026)
While pricing varies by specification, location, and access, the cost difference is often smaller than expected.
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Single concrete garage: Lower entry cost but limited expansion potential
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Double concrete garage: Higher upfront investment, but better value per square metre
From a long term cost perspective, many homeowners find that upgrading later is more expensive than installing a double garage from the outset.
Value Insight:
A double concrete garage typically delivers a better cost to space ratio and stronger long term return.
Space, Storage & Practical Use
Single Garage – Best For:
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One vehicle with minimal storage needs
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Smaller properties or restricted access
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Budget focused projects
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Homeowners with no plans for future expansion
Double Garage – Best For:
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Two vehicles
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One vehicle plus storage or workspace
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Garden equipment, tools, bikes, and seasonal storage
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Homeowners planning to stay long term
In 2026, garages are increasingly used as multi purpose spaces, not just vehicle storage. This trend strongly favours double garages.
Long Term Value & Property Appeal
Concrete garages are often viewed as permanent structures, which can positively influence property value.
Single Garage
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Adds value and practicality
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Seen as functional but limited
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May be viewed as undersized by future buyers
Double Garage
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Stronger appeal to families and professionals
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Considered a premium feature
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Offers flexibility for changing lifestyles
Professional Insight:
Estate agents consistently note that double garages attract wider buyer interest, especially as vehicle sizes and household storage demands increase.
Planning Permission & Regulations
In most cases, single and double concrete garages fall under permitted development, provided they meet height, location, and boundary regulations.
However, double garages are:
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More likely to exceed size thresholds
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More likely to require planning permission near boundaries
Always confirm local regulations before proceeding, especially for larger structures.
Security & Structural Strength
Both single and double concrete garages offer:
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Excellent resistance to forced entry
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Fire resistance
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Strong weather protection
However, a double garage provides greater internal layout flexibility, allowing for internal partitioning or secure storage zones.
Our Professional Recommendation for 2026
If budget and space allow, a double concrete garage is the better long term choice in 2026.
The reasons are clear:
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Better long term flexibility
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Stronger resale value
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More usable space for modern lifestyles
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More cost-effective per square metre
A single garage remains a strong option where space is limited or requirements are simple. However, many homeowners who choose single garages later wish they had installed a double from the start.
Final Thoughts
Concrete garages are a long-term investment, and in 2026 the trend is firmly moving towards larger, multi-purpose spaces. While a single concrete garage meets basic needs, a double garage provides adaptability, future-proofing, and stronger overall value.
That said, the final decision comes down to your available space, budget, and personal preferences. Both options deliver durability and security the best choice is the one that aligns with how you live now and how you plan to live in the future.
