Renovation & Remodeling

Renovation Done Right

Every renovation starts with the same basic question: what do we want this space to become? The answer is usually clear. What’s less clear is how to get there what the permit process looks like, what structural work is involved, how the MEP systems need to be updated, and how to make sure the design that looks good on paper actually works in the real building.
At Fast-Build, renovation and remodeling is one of our most active service areas. We’ve completed over 50 renovation projects across the United States kitchen and bathroom remodels, whole-home renovations, commercial building conversions, and large-scale change-of-use projects. Architecture, structural engineering, and MEP design are all in-house, which means the renovation drawings we produce are coordinated, permit-ready, and buildable

What We Renovate

Residential Renovation

  • Kitchen remodeling — layout reconfiguration, structural modifications, MEP upgrades
  • Bathroom remodeling — fixture layout, plumbing redesign, waterproofing, accessibility
  • Whole-home renovation and interior reconfiguration
  • Room additions and space conversions
  • Historic home updates — balancing code compliance with original character
  • Multi-unit residential renovation

Commercial Renovation

  • Office and workspace renovation
  • Retail and hospitality remodeling
  • Change of use — converting a building from one occupancy type to another
  • Building systems upgrades — MEP, fire protection, accessibility
  • Multi-phase commercial renovation projects

Kitchen Remodeling

Kitchen remodeling is one of the most requested renovation services we handle and one of the most technically involved, even when the scope looks straightforward on the surface.
A kitchen remodel that changes the layout moving walls, relocating appliances, adding an island almost always involves structural work and MEP modifications. Load-bearing walls need to be assessed and, if removed, replaced with properly engineered beams. Plumbing needs to follow the new fixture locations. Electrical needs to be updated for the new appliance loads and code-compliant outlet placement. Ventilation needs to be designed for the new cooking position.
When all of this is handled by separate contractors without coordinated drawings, you get conflicts a beam that lands where the refrigerator was supposed to go, a vent that can’t be routed where the designer assumed. We resolve those conflicts at the drawing stage, before any walls come down.

Before
Renovation & Remodeling in california After

What we typically prepare for a kitchen remodel

  • Architectural floor plan with new layout, dimensions, and fixture placement
  • Reflected ceiling plan — lighting, ventilation, ceiling heights
  • Structural assessment and beam/header design where walls are being removed
  • Plumbing plan — new fixture locations, supply and drain routing
  • Electrical plan — panel load calculation, circuit layout, outlet placement per code
  • Title 24 compliance for lighting and ventilation where required

See examples of our kitchen remodeling work in our project portfolio

Bathroom Remodeling

Bathroom remodels range from cosmetic updates new tile, new fixtures, same layout to complete gut renovations that relocate everything and reconfigure the space. As soon as plumbing moves, which is most full bathroom remodels, a permit is required.

What we typically prepare for a bathroom remodel

  • Floor plan with new fixture layout and dimensions
  • Plumbing plan — supply, drain, and vent routing
  • Waterproofing and tile setting notes where required
  • Electrical plan — GFCI protection, exhaust fan, lighting
  • Structural drawings where walls are being moved or openings added
  • Accessibility documentation for commercial or ADA-required residential work

See examples of our bathroom remodeling work

Before
After

What we typically prepare for a bathroom remodel

  • Floor plan with new fixture layout and dimensions
  • Plumbing plan — supply, drain, and vent routing
  • Waterproofing and tile setting notes where required
  • Electrical plan — GFCI protection, exhaust fan, lighting
  • Structural drawings where walls are being moved or openings added
  • Accessibility documentation for commercial or ADA-required residential work

See examples of our bathroom remodeling work

Change of Use & Building Conversion

Some of the most interesting renovation projects we work on involve buildings being transformed into something completely different. Changing a building’s use converting an office to residential, a warehouse to commercial space, an educational facility to hospitality is one of the most technically complex permit processes in construction.
The building code treats a change of occupancy as if the building is being built new for the new use. Egress, structural loads, fire protection, accessibility, and MEP systems all need to be evaluated against the requirements for the new occupancy type.

Ulster Park Project — New York

One of our most substantial renovation projects involved the complete conversion of a former educational facility in Ulster Park, New York into a hostel with pool and spa amenities. The project required a full change-of-occupancy permit, structural analysis of the existing building for the new use, MEP redesign to support the hospitality program, and the addition of pool and spa facilities each with their own structural and MEP requirements.
View the Ulster Park project

Other change-of-use and building conversion projects we handle

  • Educational to residential or hospitality
  • Warehouse to office, retail, or mixed-use
  • Office to medical or healthcare
  • Retail to food service
  • Industrial to live-work or residential
  • Single-family to multi-family

Renovation Across the Country

Most of our renovation work is in California, where we have the deepest familiarity with local jurisdictions. But we’ve completed renovation and remodeling projects across most U.S. states.
Building codes vary significantly from state to state California’s seismic requirements, New York’s energy codes, Florida’s wind and moisture requirements all shape how renovation drawings need to be prepared. We research the applicable code for each project and build the drawings around it

The Permit Side of Renovation

Renovation permits are often more complex than new construction permits. With new construction, you start from a blank lot. With renovation, you start from an existing building that may have been modified over the years, may have unpermitted work, and may not fully meet current code even before the renovation begins.

Common renovation permit considerations:

  • Existing unpermitted work that surfaces during permit application
  • Structural elements that don’t meet current code and need to be upgraded
  • ADA path of travel requirements triggered by commercial renovation cost thresholds
  • Energy compliance upgrades required by the scope of mechanical or electrical work
  • Change of occupancy requirements when a space is being converted to a new use

Our Process

Existing Conditions Assessment

We start by understanding what’s there field measurements, existing drawings if available, and a thorough look at the structural and MEP systems. For renovation projects, the existing building is the starting point for everything. Accurate documentation of existing conditions is what prevents the “we didn’t know that wall was load-bearing” conversation mid-construction.

Design Development

We develop the renovation design in coordination with you floor plan options, structural solutions, MEP system approach, and material direction. Because structural and MEP are in-house, design decisions are made with full knowledge of what’s structurally feasible and what the MEP implications are. You don’t get an architectural concept that later turns out to be unbuildable.

Permit Drawing Preparation

We prepare the full permit drawing set architectural, structural, and MEP coordinated across all disciplines. The set is reviewed for code compliance before submittal.

Permit Submission & Construction Support

We submit to the city and manage plan check through approval. During construction, we’re available to answer contractor questions, issue clarifications, and address any field conditions that weren’t visible until demolition began.

Frequently Asked Questions

Do all renovation projects require a permit?

Not all, but most. Cosmetic work painting, flooring, cabinet replacements that don’t move plumbing typically doesn’t require a permit. As soon as the scope involves structural changes, MEP modifications, or changes to room configuration, a permit is usually required. We can tell you what your specific project and city requires.

Yes. We regularly coordinate with contractors during both the design and construction phases. If your contractor has questions about the drawings during construction, we’re available to respond.

Yes. We’ve worked on renovation projects across most U.S. states. Requirements vary significantly by jurisdiction and we approach each project based on the applicable local code.

Existing unpermitted work typically needs to be addressed as part of the renovation permit either legalized through as-built drawings or removed.

Both. We handle the full scope from initial design concept through permit approval. Or, if you already have a design from another architect or interior designer, we can prepare the structural and MEP drawings and manage the permit process.

Start Your Project With Confidence

Book a free consultation and get expert guidance on your project, timeline, and permit requirements.

Start Your Project With Confidence

Book a free consultation and get expert guidance on your project, timeline, and permit requirements.

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