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Addition to existing structure builders in Conifer

Avatar for Green City Builders
Green City Builders
2736 S King St
2.75(
2
)
Approved Pro
Green City Builders
2736 S King St
2.75(
2
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"We hired this company to redo some stairs and railingâ ¦ We had to spend thousand in repairs after they left us with a mess"

Christine h on July 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"We hired this company to redo some stairs and railingâ ¦ We had to spend thousand in repairs after they left us with a mess"

Christine h on July 2024


Framing, interior trim, exterior trim, windows, decks, pergolas, covered patios, additions, cabinets


Avatar for CH Remodeling & Home Repair, LLC
CH Remodeling & Home Repair, LLC
7283 South Teller Court
5.00(
1
)
Approved Pro
CH Remodeling & Home Repair, LLC
7283 South Teller Court
5.00(
1
)
Approved Pro
Customers say: Quick response
4 years of experience

CH Remodeling & Home Repair LLC, upholds a standard of integrity, bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with the ability is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business. Please give us a call today!

"I hired chris with CH remodeling to put a kitchenette in my basement, redo all my floors and my master bathroom he communicated with me the whole way through the project finished all on time great job on all"

Indre R on July 2021

CH Remodeling & Home Repair LLC, upholds a standard of integrity, bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with the ability is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business. Please give us a call today!

"I hired chris with CH remodeling to put a kitchenette in my basement, redo all my floors and my master bathroom he communicated with me the whole way through the project finished all on time great job on all"

Indre R on July 2021


Elite Construction
800 E 64th Ave #7
New on HomeAdvisorNew on Angi
Approved Pro
Elite Construction
800 E 64th Ave #7
New on AngiNew on HomeAdvisor
Approved Pro
26 years of experience
Free onsite estimate

Elite Construction LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Elite Construction LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Avatar for Apex Resources, LLC
Apex Resources, LLC
8200 S Quebec St
4.88(
4
)
Approved Pro
Apex Resources, LLC
8200 S Quebec St
4.88(
4
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We are a locally owned and licensed company that values honesty, integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction! Feel free to verify our contractor's license number: Building Contractor-Class B CERT1054895

"I was happy"

Jim W on June 2018

We are a locally owned and licensed company that values honesty, integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction! Feel free to verify our contractor's license number: Building Contractor-Class B CERT1054895

"I was happy"

Jim W on June 2018


Avatar for 303 Construction
303 Construction
P.O. Box 218
4.74(
17
)
Approved Pro
303 Construction
P.O. Box 218
4.74(
17
)
Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

With over 40 years experience building in Denver, 303 Construction is firmly grounded in Colorado. These roots maintain that we back up our work for years and give you the comfort of knowing a contractor in the area you can count on. We have created relationships with suppliers so you don't have to. We have established accounts for everything from HVAC to Granite, so you don't have to find multiple parties to get your projects finished. Want to know everything you need to about building additions? Contact us on our website. 303construction.net

"I wanted to add a garage and didn't have a lot of space. I live in a landmark district in Denver and they can be very difficult and it's hard to find someone who would even deal with them. But Bryan and his guys braved the storm and got the garage done and put in a custom concrete patio to maximize space. Loved all his guys and would gladly use them again"

Jeremy S on April 2025

With over 40 years experience building in Denver, 303 Construction is firmly grounded in Colorado. These roots maintain that we back up our work for years and give you the comfort of knowing a contractor in the area you can count on. We have created relationships with suppliers so you don't have to. We have established accounts for everything from HVAC to Granite, so you don't have to find multiple parties to get your projects finished. Want to know everything you need to about building additions? Contact us on our website. 303construction.net

"I wanted to add a garage and didn't have a lot of space. I live in a landmark district in Denver and they can be very difficult and it's hard to find someone who would even deal with them. But Bryan and his guys braved the storm and got the garage done and put in a custom concrete patio to maximize space. Loved all his guys and would gladly use them again"

Jeremy S on April 2025


Avatar for HB Development LLC
HB Development LLC
6054 S. Bellaire Way
5.00(
3
)
Approved Pro
HB Development LLC
6054 S. Bellaire Way
5.00(
3
)
Approved Pro
7 years of experience
Free onsite estimate

Founded in 2011, HB Development specializes in the development and redevelopment of residential properties, ranging from single family homes to multi-unit townhome projects. HB Development specializes in transforming underutilized or functionally challenged properties to maximize the value and functionality of the property. This includes substantial renovations, expansions and redevelopment of subject properties. We work with homeowners and property owners to maximize the value and enjoyment of their properties! Call us today!

"We purchased a home fully renovated by HB Development back in June 2024. We loved that the home was updated stylishly and perfectly turn key!"

Mara W on April 2025

Founded in 2011, HB Development specializes in the development and redevelopment of residential properties, ranging from single family homes to multi-unit townhome projects. HB Development specializes in transforming underutilized or functionally challenged properties to maximize the value and functionality of the property. This includes substantial renovations, expansions and redevelopment of subject properties. We work with homeowners and property owners to maximize the value and enjoyment of their properties! Call us today!

"We purchased a home fully renovated by HB Development back in June 2024. We loved that the home was updated stylishly and perfectly turn key!"

Mara W on April 2025


Avatar for High Country Home Improvement, LLC
High Country Home Improvement, LLC
738 Parkview Avenue
4.87(
44
)
Approved Pro
High Country Home Improvement, LLC
738 Parkview Avenue
4.87(
44
)
Approved Pro
Customers say: Quick response
35 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"Excellent contractor with quality work and trusted employees. Would hire them again."

Campbell L on March 2021

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"Excellent contractor with quality work and trusted employees. Would hire them again."

Campbell L on March 2021


Avatar for A & M Landscaping
A & M Landscaping
1043 Poplar St,
5.00(
3
)
Approved Pro
A & M Landscaping
1043 Poplar St,
5.00(
3
)
Approved Pro
Customers say: Quick response
14 local quotes requested
1 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ben Muck of A & M Landscaping turned our backyard into a sanctuary. It is now my favorite place to be, in or outside of my house! Whether for socializing, or recharging alone, Ben created spaces that are comfortable, functional, and beautiful. He was easy to work with, pleasant, informative, and professional, and delivered above and beyond all we had hoped for. Our backyard renovation was especially important to my husband and me, because this is our first house, and it was inheritance money from my grandparents that provided for the project. I told Ben that it was at their house as a child that I learned the joy of â visitingâ with loved ones outside. Ben designed a space Grandma and Grandpa would have loved, and I am so very grateful."

RuthAnn L on October 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ben Muck of A & M Landscaping turned our backyard into a sanctuary. It is now my favorite place to be, in or outside of my house! Whether for socializing, or recharging alone, Ben created spaces that are comfortable, functional, and beautiful. He was easy to work with, pleasant, informative, and professional, and delivered above and beyond all we had hoped for. Our backyard renovation was especially important to my husband and me, because this is our first house, and it was inheritance money from my grandparents that provided for the project. I told Ben that it was at their house as a child that I learned the joy of â visitingâ with loved ones outside. Ben designed a space Grandma and Grandpa would have loved, and I am so very grateful."

RuthAnn L on October 2024


Avatar for Concierge Remodels
Concierge Remodels
9200 E Mineral Suite 100
5.00(
10
)
Approved Pro
Concierge Remodels
9200 E Mineral Suite 100
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 local quotes requested

At Concierge Remodels we work side by side with our customers from the beginning stages of design to finish to bring your vision to life. Our commitment to excellence in home remodeling extends beyond mere construction-It's about crafting spaces that reflect your unique vision and lifestyle. Whether it's a basement finish, a kitchen remodel, or a complete home transformation, trust Concierge Remodeling to provide a personalized, stress-free remodeling experience that exceeds your expectations.

""

Karif E on April 2024

At Concierge Remodels we work side by side with our customers from the beginning stages of design to finish to bring your vision to life. Our commitment to excellence in home remodeling extends beyond mere construction-It's about crafting spaces that reflect your unique vision and lifestyle. Whether it's a basement finish, a kitchen remodel, or a complete home transformation, trust Concierge Remodeling to provide a personalized, stress-free remodeling experience that exceeds your expectations.

""

Karif E on April 2024

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Addition to existing structure building services FAQs

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

The homeowners guide to addition to existing structure building services
From average costs to expert advice, get all the answers you need to get your job done.
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