What is a loft conversion?

A loft conversion turns your unused attic or loft into a functional living space, like a bedroom or home office. Adding walls, ceilings, lighting, and even plumbing seamlessly integrates the new room with the rest of your home. It's a practical way to expand your living area and boost your property's value.

What’s the difference between a loft and an attic?

A loft is a finished and integrated living space created by converting an attic, while an attic is an isolated, unfinished area under the roof. The loft conversion process installs proper walls, ceilings, and utilities, transforming the space into a usable room that adds value to the home. In contrast, an attic remains largely unmodified and is typically reserved for storage.

Do I need planning permission to convert a loft?

Planning permission is required for a loft conversion because the project alters the structure and must meet strict building codes. A building permit, costing between $500 and $3,000, and mechanical permits, costing between $10 and $500 each, are mandatory. This regulatory process ensures safety, adherence to design standards, and the home's overall integrity during conversion.

How long does a loft conversion take?

A loft conversion takes several weeks because the project involves multiple phases, from design to finishing. The process requires careful planning, obtaining permits, executing structural changes, installing utilities, and completing final decorative work to ensure the converted area meets building codes and the homeowner’s requirements.

Why might I choose an alternative project instead of a loft conversion?

Choosing an alternative project instead of a loft conversion can be advantageous when a less complex project's return on investment is higher. Homeowners may opt for improvements like upgrading doors, windows, or adding a deck because these projects demand lower overall costs and fewer structural changes. Such alternatives can enhance home value and functionality with a more streamlined process.

Top-Rated Attic Remodelings Experts in San Jose, CA

Rock N Block - Turf N Hardscapes Santa Clara

2100 S Bascom Ave Ste 1 #524

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•Approved Pro

Rock N Block - Turf N Hardscapes Santa Clara

2100 S Bascom Ave Ste 1 #524

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•Approved Pro

747 local quotes requested

20 years of experience

Rock N Block Landscape takes 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.

3rd Generation Building and Design

P.O. Box 2849

5.00(

13

)

•Approved Pro

3rd Generation Building and Design

P.O. Box 2849

5.00(

13

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

224 local quotes requested

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Excellent. The schedule was efficient and all the work was top quality. We would hire 3rd Generation Building again."

Martha W on January 2025

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Excellent. The schedule was efficient and all the work was top quality. We would hire 3rd Generation Building again."

Martha W on January 2025

Superb Builders & Custom Made Cabinetry Inc.

3.17(

24

)

•Approved Pro

Superb Builders & Custom Made Cabinetry Inc.

3.17(

24

)

•Approved Pro

Customers say: Quality work

973 local quotes requested

4 years of experience

Family owned business with over 22 years of experience -Remodeling - General - Remodeling - Kitchen & Bathroom - full home remodels - room additions - ADU's - Full Roof replacement -

"Would not recommend them to anyone. We had the worst experience with these guys. Scope of project: kitchen complete remodel, replacing carpet flooring with vinyl tile flooring , redo electrical for kitchen area only cost: 100K+ what went to plan: - kitchen demo - made one nice dry wall - setting up and framing of the kitchen area what went wrong: - communication/scheduling : we would never be told ahead of time when work was being done. Sometimes there would be days stretches where no one showed up and then guys would show up randomly on a Sunday morning. At the start of the project we told them we were going to move into the back half of the house, so just have that clean. We moved into trash and debris everywhere. They also saw a vinyl strap , strapped to our tree, tied to our neighbor's fence (it was there keeping the fence up as the tree was leaning into the neighbors fence). In their brilliance, they decided to cut the strap and use it for themselves. How did we know? we found it on our roof, used to tie some electrical conduit. Who the heck does that?! We should've cut ties at that point, it was just the start...if we only knew. But we gave them the benefit of the doubt...but things kept going wrong. - Kitchen cabinet install was not leveled, we end up telling them to not bother coming back and we installed the whole kitchen ourselves (re-leveling the base cabinets, putting on the hardware, installing the cabinet doors. - broke several custom panels (to their credit, they did pay for the reorder) but we ended up installing it ourselves , which we were never offered refund the labor. - the kitchen counter was not leveled, we also had to redo it ourselves in order for the independent countertop guys to install it. - cut hole for electrical switch too big, huge gap now in our org Eichler panel that is not repairable unless we replace the whole wall. - cut hole in wood beam ceiling too big for ceiling vent even though they had the manufacturer's specifications. tried to fix it, but it looks terrible. - lied and said they had experience installing lux vinyl tile. They didn't. The flooring , which is supposed to be new, looks like flooring that has been there for years and hadn't been replaced. It was discolored, uneven, not leveled, and not even lined up. How can you mess up lining up squares? Our sales person Joe ,came and made excuses after excuses , telling us " no one can install it better than them" , that this is the "best" we'll get. I cannot believe he could look us in the face and say that. We ended up requesting 1500 back, though for us to reorder redo the tiles for the kitchen will be 3K+. - as a last F you to us, they gave us the bill for the permit fees which includes a 3% of project cost recycling deposit that is 100% refundable if they just do the paperwork and let the city know where they recycled the demolition material. Our kitchen project was 80K and so it was $2400. Guess what, they "never heard of this" and have no proof of where they recycled the material and so cannot get the refund. I have no idea where they dumped the material.....and we're out 2400. The best thing about this project is finishing and NEVER having to deal with them again."

bobby p on April 2020

Family owned business with over 22 years of experience -Remodeling - General - Remodeling - Kitchen & Bathroom - full home remodels - room additions - ADU's - Full Roof replacement -

"Would not recommend them to anyone. We had the worst experience with these guys. Scope of project: kitchen complete remodel, replacing carpet flooring with vinyl tile flooring , redo electrical for kitchen area only cost: 100K+ what went to plan: - kitchen demo - made one nice dry wall - setting up and framing of the kitchen area what went wrong: - communication/scheduling : we would never be told ahead of time when work was being done. Sometimes there would be days stretches where no one showed up and then guys would show up randomly on a Sunday morning. At the start of the project we told them we were going to move into the back half of the house, so just have that clean. We moved into trash and debris everywhere. They also saw a vinyl strap , strapped to our tree, tied to our neighbor's fence (it was there keeping the fence up as the tree was leaning into the neighbors fence). In their brilliance, they decided to cut the strap and use it for themselves. How did we know? we found it on our roof, used to tie some electrical conduit. Who the heck does that?! We should've cut ties at that point, it was just the start...if we only knew. But we gave them the benefit of the doubt...but things kept going wrong. - Kitchen cabinet install was not leveled, we end up telling them to not bother coming back and we installed the whole kitchen ourselves (re-leveling the base cabinets, putting on the hardware, installing the cabinet doors. - broke several custom panels (to their credit, they did pay for the reorder) but we ended up installing it ourselves , which we were never offered refund the labor. - the kitchen counter was not leveled, we also had to redo it ourselves in order for the independent countertop guys to install it. - cut hole for electrical switch too big, huge gap now in our org Eichler panel that is not repairable unless we replace the whole wall. - cut hole in wood beam ceiling too big for ceiling vent even though they had the manufacturer's specifications. tried to fix it, but it looks terrible. - lied and said they had experience installing lux vinyl tile. They didn't. The flooring , which is supposed to be new, looks like flooring that has been there for years and hadn't been replaced. It was discolored, uneven, not leveled, and not even lined up. How can you mess up lining up squares? Our sales person Joe ,came and made excuses after excuses , telling us " no one can install it better than them" , that this is the "best" we'll get. I cannot believe he could look us in the face and say that. We ended up requesting 1500 back, though for us to reorder redo the tiles for the kitchen will be 3K+. - as a last F you to us, they gave us the bill for the permit fees which includes a 3% of project cost recycling deposit that is 100% refundable if they just do the paperwork and let the city know where they recycled the demolition material. Our kitchen project was 80K and so it was $2400. Guess what, they "never heard of this" and have no proof of where they recycled the material and so cannot get the refund. I have no idea where they dumped the material.....and we're out 2400. The best thing about this project is finishing and NEVER having to deal with them again."

bobby p on April 2020

Landscape Solutions

15530 Benedict Lane

4.34(

105

)

•Approved Pro

Landscape Solutions

15530 Benedict Lane

4.34(

105

)

•Approved Pro

Customers say: Quality work

950 local quotes requested

33 years of experience

Landscape design and installation. All phases (softscape/hardscape). Owner operated. Multi -year Angie's List Super Service Award winner. Cal-poly trained landscape architecture designers. Free design consultations. Free written estimates and proposals. All sized projects. Sprinkler and other landscape repairs. New sod lawns. Hand selected guaranteed nursery stock planting, drought tolerant landscaping, synthetic turf. Serving the entire Silicon Valley. Fast turn-around. Friendly service. Fully insured. Accepting all major credit cards and online payment apps. State of California licensed landscape contractor (C-27) since 1993 (CSLB #682755). Quality-Value-Service "Great landscaping designed to budget!" "The art and science of great landscaping!" Composite and wood decking. Arbors and pergolas. Drought friendly landscaping, Automatic drip and spray irrigation systems. Irrigation timer clocks/controllers. Redwood and composite decking. Interlocking pavers. Retainer walls. Concrete. L.E.D. low volt landscape lighting. Drainage. Flagstone. Brickwork. Outdoor kitchens. Firepits. Gravel. Mulch. Tile. Water features. Boulders, River rock. Pool decks. Pool Removal. Pergolas. Arbors Irrigation and landscape lighting repairs, fences and gates. ...and more! ask about our new "Express Build" "Complete landscaping in record time!"

"Quick to respond, gave a quote on the spot and started work after Providing proper documentation in order to perform the job. I explained what I wanted and he delivered exactly that. Amazing job! Definitely recommend him for future work."

Danielle Z on May 2025

Landscape design and installation. All phases (softscape/hardscape). Owner operated. Multi -year Angie's List Super Service Award winner. Cal-poly trained landscape architecture designers. Free design consultations. Free written estimates and proposals. All sized projects. Sprinkler and other landscape repairs. New sod lawns. Hand selected guaranteed nursery stock planting, drought tolerant landscaping, synthetic turf. Serving the entire Silicon Valley. Fast turn-around. Friendly service. Fully insured. Accepting all major credit cards and online payment apps. State of California licensed landscape contractor (C-27) since 1993 (CSLB #682755). Quality-Value-Service "Great landscaping designed to budget!" "The art and science of great landscaping!" Composite and wood decking. Arbors and pergolas. Drought friendly landscaping, Automatic drip and spray irrigation systems. Irrigation timer clocks/controllers. Redwood and composite decking. Interlocking pavers. Retainer walls. Concrete. L.E.D. low volt landscape lighting. Drainage. Flagstone. Brickwork. Outdoor kitchens. Firepits. Gravel. Mulch. Tile. Water features. Boulders, River rock. Pool decks. Pool Removal. Pergolas. Arbors Irrigation and landscape lighting repairs, fences and gates. ...and more! ask about our new "Express Build" "Complete landscaping in record time!"

"Quick to respond, gave a quote on the spot and started work after Providing proper documentation in order to perform the job. I explained what I wanted and he delivered exactly that. Amazing job! Definitely recommend him for future work."

Danielle Z on May 2025

Be Home Remodeling Inc

84 West Santa Clara Street

5.00(

3

)

•Approved Pro

Be Home Remodeling Inc

84 West Santa Clara Street

5.00(

3

)

•Approved Pro

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

1642 local quotes requested

***346 PROJECTS/24 IN PROGRESS/322 COMPLETED**YOUR DREAM REMODEL AWAITS. LET'S MAKE IT HOME!** Welcome to Be Home Remodeling! We specialize in transforming homes with expert craftsmanship, innovative designs, and personalized solutions. into dream We turn houses into dream homes. With a commitment to quality craftsmanship and personalized service, we bring your vision to life, creating spaces that reflect your style and meet your needs. From kitchens to full-home remodels, we bring your vision to life, creating beautiful, functional spaces you’ll love. eHome Remodeling was founded by Benjamin, who leads our team with over 10 years of experience transforming homes across the Bay Area. We specialize in everything from detailed kitchen remodels to full-scale renovations, ensuring each space perfectly reflects your unique vision and lifestyle. At BeHome, we prioritize transparent communication, meticulous planning, and quality craftsmanship, working closely with you at every stage to create a space you’ll love coming home to. Contact us today for your FREE estimate by calling 408-616-4989 or click the request a quote link!

"Appreciate the great communication, Benjamin and his team was professional, clean after themselves and was delivering what was promised. Will definitely hire them again Thank you!"

Liran Salesman b on December 2024

***346 PROJECTS/24 IN PROGRESS/322 COMPLETED**YOUR DREAM REMODEL AWAITS. LET'S MAKE IT HOME!** Welcome to Be Home Remodeling! We specialize in transforming homes with expert craftsmanship, innovative designs, and personalized solutions. into dream We turn houses into dream homes. With a commitment to quality craftsmanship and personalized service, we bring your vision to life, creating spaces that reflect your style and meet your needs. From kitchens to full-home remodels, we bring your vision to life, creating beautiful, functional spaces you’ll love. eHome Remodeling was founded by Benjamin, who leads our team with over 10 years of experience transforming homes across the Bay Area. We specialize in everything from detailed kitchen remodels to full-scale renovations, ensuring each space perfectly reflects your unique vision and lifestyle. At BeHome, we prioritize transparent communication, meticulous planning, and quality craftsmanship, working closely with you at every stage to create a space you’ll love coming home to. Contact us today for your FREE estimate by calling 408-616-4989 or click the request a quote link!

"Appreciate the great communication, Benjamin and his team was professional, clean after themselves and was delivering what was promised. Will definitely hire them again Thank you!"

Liran Salesman b on December 2024

Geico Builders

1901 Harrison Street

5.00(

22

)

•Approved Pro

Geico Builders

1901 Harrison Street

5.00(

22

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

1776 local quotes requested

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We were looking to expand our house for years, with addition ADU. We had selected Geico Builders for their craftsmanship, selection of materials and the competitive pricing. Mila and Kevin worked with us to renovate our enclosed patio build a primary bedroom with an en-suite bathroom and a walk-in closet. It turned out amazing. We went through several revisions in the design, and they took care of the permits and paperwork with the city. My wife works from home, so they mindful in working around her availability. Overall, the project took about 14 months from when we found them due to permits taking a few months. it's hard living in a construction zone but the team went above and beyond to minimize the impact it had on our lives. They have a great team that is very attentive and responsive. Some of my parts are on back order and the team will be back to install the missing lights and shelves we bought as finishes. I will work with them again if I projects. Great professionals to trust your home."

John R on September 2025

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We were looking to expand our house for years, with addition ADU. We had selected Geico Builders for their craftsmanship, selection of materials and the competitive pricing. Mila and Kevin worked with us to renovate our enclosed patio build a primary bedroom with an en-suite bathroom and a walk-in closet. It turned out amazing. We went through several revisions in the design, and they took care of the permits and paperwork with the city. My wife works from home, so they mindful in working around her availability. Overall, the project took about 14 months from when we found them due to permits taking a few months. it's hard living in a construction zone but the team went above and beyond to minimize the impact it had on our lives. They have a great team that is very attentive and responsive. Some of my parts are on back order and the team will be back to install the missing lights and shelves we bought as finishes. I will work with them again if I projects. Great professionals to trust your home."

John R on September 2025

Unique Home Design & Remodeling

303 Twin Dolphin Dr.

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•Approved Pro

Unique Home Design & Remodeling

303 Twin Dolphin Dr.

New on HomeAdvisorNew on HomeAdvisor

•Approved Pro

2078 local quotes requested

42 years of experience

Unique Home Design & Remodeling is a leader in providing value-added construction services to our customers by creating a successful partnership throughout the construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance by every member on our construction team. Unique Home Design & Remodeling's mission is to accomplish full customer satisfaction in every area possible from color selection to project completion. Unique Home Design & Remodeling's main focus is to provide our future clients with a professional home improvement experience. We vow to our customers with the highest level of quality construction services at fair market and competitive prices. To ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas including timeliness, attention to detail and service-minded attitudes.

Tech Line Construction Inc.

6114 La Salle Avenue

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•Approved Pro

Tech Line Construction Inc.

6114 La Salle Avenue

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•Approved Pro

2354 local quotes requested

5 years of experience

Welcome to Tech Line Construction, your trusted partner in enhancing your home and transforming your wishes into visual and solid realities. With over a decade of unwavering dedication and a commitment to excellence, we have proudly served our clients in delivering top-tier construction solutions. We specialize in providing top-notch services for residential and commercial projects. Our commitment to professionalism, quality, and meticulous attention to detail sets us apart from our competitors. Choose Tech Line Construction for your next construction project and experience the highest level of service and craftsmanship. Bay Area General B Contractor Jose Rodriguez ( General Building contractor ) (510)798-5869 Office@techlineconstruction.info Tech Line Construction inc TechLineconstructiondesign.com CSLB # LIC 1094361 Commercial liability &Worker comp. Insured & bonded

2Green Landscaping & Maintenance

741 San Simeon Street

4.29(

7

)

•Approved Pro

2Green Landscaping & Maintenance

741 San Simeon Street

4.29(

7

)

•Approved Pro

Customers say: Quality work

539 local quotes requested

25 years of experience

At 2Green Landscaping & Maintenance, we value our relationship with customers. We make it our priority to make sure you are well informed of any landscaping work you may need. Landscaping services should be predictably affordable, and leave lasting results. Furthermore, with 13 years of experience under our belt, you can trust that the job is going to be done right.

"Fantastic. I never thought my backyard would ever look so good."

Ann M on November 2024

At 2Green Landscaping & Maintenance, we value our relationship with customers. We make it our priority to make sure you are well informed of any landscaping work you may need. Landscaping services should be predictably affordable, and leave lasting results. Furthermore, with 13 years of experience under our belt, you can trust that the job is going to be done right.

"Fantastic. I never thought my backyard would ever look so good."

Ann M on November 2024

E. Arias & Company

5195 Ramsdell Court

5.00(

6

)

•Approved Pro

E. Arias & Company

5195 Ramsdell Court

5.00(

6

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

1923 local quotes requested

HI!, my name is Irving Rodriguez, and I’m a licensed contractor with over 40 years of experience. I specialize in high-quality remodeling and property services designed to enhance the beauty, functionality, and value of your home. Tailored to your vision and needs. Trust and Reliability: Decades of experience with satisfied homeowners. Quality Workmanship: We deliver durable and aesthetically pleasing results. --- Next Steps If you have a project in mind or want to explore ideas to improve your home, I’d love to discuss it with you. We can schedule a consultation to review your goals and provide a detailed estimate. Thank you for your time, and I look forward to helping you make your home even better!

"Works and progresses were extremely smooth; especially, handling city permits. Works completed with professional efficiency."

Jack F on July 2025

HI!, my name is Irving Rodriguez, and I’m a licensed contractor with over 40 years of experience. I specialize in high-quality remodeling and property services designed to enhance the beauty, functionality, and value of your home. Tailored to your vision and needs. Trust and Reliability: Decades of experience with satisfied homeowners. Quality Workmanship: We deliver durable and aesthetically pleasing results. --- Next Steps If you have a project in mind or want to explore ideas to improve your home, I’d love to discuss it with you. We can schedule a consultation to review your goals and provide a detailed estimate. Thank you for your time, and I look forward to helping you make your home even better!

"Works and progresses were extremely smooth; especially, handling city permits. Works completed with professional efficiency."

Jack F on July 2025

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Rock N Block - Turf N Hardscapes Santa Clara

Rock N Block - Turf N Hardscapes Santa Clara

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3rd Generation Building and Design

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Superb Builders & Custom Made Cabinetry Inc.

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Landscape Solutions

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Be Home Remodeling Inc

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Geico Builders

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Unique Home Design & Remodeling

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Tech Line Construction Inc.

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2Green Landscaping & Maintenance

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E. Arias & Company

The San Jose, CA homeowners’ guide to attic remodelings

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Attic remodelers in San Jose

Rock N Block - Turf N Hardscapes Santa Clara

Rock N Block - Turf N Hardscapes Santa Clara

3rd Generation Building and Design

3rd Generation Building and Design

Superb Builders & Custom Made Cabinetry Inc.

Superb Builders & Custom Made Cabinetry Inc.

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Landscape Solutions

Be Home Remodeling Inc

Be Home Remodeling Inc

Geico Builders

Geico Builders

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Unique Home Design & Remodeling

Tech Line Construction Inc.

Tech Line Construction Inc.

2Green Landscaping & Maintenance

2Green Landscaping & Maintenance

E. Arias & Company

E. Arias & Company

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