Lake Mary · Seminole County
Home Additions in Lake Mary, FL
Designed in 3D, permitted with the right Seminole County or city office, and built by a licensed Florida general contractor that also holds its own plumbing license.
Home addition projects in Lake Mary
Lake Mary homes are already larger than many in Seminole County, so additions here are usually about the right kind of space rather than simply more of it. The common requests are a first-floor primary suite for owners who no longer want to climb stairs every night, an in-law suite with its own bath for a parent moving in, and enclosing a screened lanai into a conditioned family room or home office. Garage conversions come up less often, since many associations restrict them, so most Lake Mary additions extend the house toward the backyard.
What changes for a home addition in Lake Mary
Additions in Lake Mary and Heathrow go through two reviews. The HOA's architectural committee usually expects the addition to match the existing roof tile, stucco, colors and window style, and gated communities set rules for deliveries and dumpsters. Then comes the permit: the City of Lake Mary Building Division inside city limits, or the Seminole County Building Division for much of Heathrow. In two-story homes, a first-floor suite has to tie into the existing roof and sometimes the second-floor framing, so engineered drawings come first. Most of these homes are 30 to 40 minutes from our Kingspointe Pkwy showroom.
Local details we plan around
- Much of Heathrow is unincorporated Seminole County, so the county, not the City of Lake Mary, issues those permits.
- Gated communities control contractor access, hours and dumpster placement, which affects scheduling and deliveries.
- Second-floor bathrooms sit over finished rooms, so waterproofing and leak protection matter more than in a single-story house.
- Original plumbing components from the 1980s to 2000s, such as water heaters, shutoff valves and supply lines, are often due for replacement during a remodel.
For the full picture of materials, design choices and how the work is sequenced, see our home additions guide for Central Florida, or read more about remodeling in Lake Mary.
Scope
What the work includes
Feasibility and zoning check
Before design, we review your lot survey, setbacks, lot coverage limits and HOA rules to confirm how much you can build and where it can go.
Design and 3D rendering
We design the addition to match the roofline, windows and finishes of the existing house, and show it in 3D so you can see the result before engineering.
Engineering and permit drawings
Licensed design professionals prepare structural plans and energy calculations. We submit the permit package and respond to any reviewer comments.
Foundation and slab
New footings and slab, tied into the existing foundation with doweled reinforcing, with termite pretreatment and a vapor barrier under the new concrete.
Framing or block walls and roof tie-in
Concrete block or wood framing to match the engineered plans, new trusses or rafters, and a roof tie-in that sheds water and matches the existing roofing.
Plumbing, electrical and HVAC
New bathrooms and kitchenettes plumbed under our own license, new circuits and panel review, and air conditioning sized for the added square footage.
Our process
How a home addition in Lake Mary runs
The same five steps on every kitchen, bath and renovation. Online requests get a call back within 24 to 48 hours.
- 01
We visit you at home
We measure the space, note where plumbing, gas and electrical run today, and ask how you use the room. The design starts at this visit.
- 02
3D design rendering
Your measurements become a 3D model, so you see the layout, cabinet heights and finishes before anything is ordered or torn out.
- 03
Material selection
You choose cabinets, counters, tile and fixtures with our designer in the Kingspointe Pkwy showroom, against the final design.
- 04
Ordering and permits
We order material, check every item against your selections, and pull the permits the scope needs.
- 05
We build, then walk it with you
Our crew and licensed trades do the work and pass inspections. We finish with a walk-through, room by room.
Google reviews
Reviews from our customers
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★★★★★
"We recently completed a full kitchen renovation in winter park and couldn’t be happier with the results. Prime construction were professional, detail-oriented, and kept everything on schedule from start to finish. The quality of the work is outstanding, and they really brought our vision to life. Highly recommend to anyone looking to upgrade their kitchen!"
Dvir C.Posted on Google · April 2026 Read -
★★★★★
"It is a pleasure to recommend Prime Construction / Kitchens for any of your home remodeling needs. Prime Construction helped me diagnose a problem with a wall in my garage related to a window leak. Prime Construction shared with me how I could address the issue myself and saved me the cost of a dispatch by their team. They were only concerned with helping me resolve my issue. I give my full recommendation to Prime Construction. Thank you"
Johnny C.Posted on Google · August 2025 Read -
★★★★★
"We absolutely love our new dream bathroom! Asaf listened to everything we wanted and went beyond we what could imagine! They work quickly, efficiently and are very clean! The prices are great and we’ll definitely use Prime again for future renovations! WE HIGHLY RECOMMEND PRIME!"
Geo W.Posted on Google · March 2026 Read
FAQ
Home Additions in Lake Mary: questions
Do not see your question? Call us or send the estimate form and we will answer it on the phone.
Can I enclose my lanai to add a room in Lake Mary?
Often yes, but it is treated as an addition, not a screen repair. The existing slab, posts and roof usually were not built to support conditioned living space, so an engineer checks the foundation and roof framing, and the new walls, windows, insulation and air conditioning are all permitted. Your HOA will review the exterior look, and we prepare that submission before applying for the building permit.
Do you work in Heathrow, and who issues the permit there?
Yes, we remodel kitchens and bathrooms in Heathrow. Much of Heathrow is unincorporated Seminole County, so the Seminole County Building Division issues the permit rather than the City of Lake Mary. We check each parcel's tax district on the property appraiser record and file with the correct office, then coordinate gate access and work hours with the HOA.
Do I need HOA approval to remodel a kitchen in Lake Mary?
Usually not for interior work, but check your community's rules. Most Lake Mary and Heathrow HOAs only review exterior changes, such as windows, doors and additions. Many still set rules for contractors on hours, parking, gate access and where a dumpster can go, and some ask for notice before work starts. We read the rules and handle any submittal.
How long does a home addition take in Orlando?
Most room additions take about 3 to 5 months of construction once permits are issued. Design, engineering, HOA review and permitting usually add 2 to 4 months before work starts. Garage conversions are typically faster because the roof and walls already exist. We give you a written schedule before construction and keep you updated as each phase passes inspection.
Do I need a permit for a room addition in Florida?
Yes. Any addition that adds space, changes structure or adds plumbing and electrical requires a building permit, engineered drawings and inspections. The permit is issued by your city building department if you are inside city limits, or by the county in unincorporated areas. As a licensed general contractor, we prepare and submit the permit package.
Can I build an in-law suite or ADU on my property?
It depends on your local zoning. An attached in-law suite with a bedroom and bathroom is usually allowed where additions are allowed. A separate unit with its own kitchen and entrance is treated as an accessory dwelling unit in many places, and rules on size, parking and occupancy vary by city and county. We check the rules for your parcel first.
Showroom and office
Serving Lake Mary from our Orlando showroom
Our showroom on Kingspointe Parkway is about 23 miles from Lake Mary in a straight line. Come see cabinets, counters and vanities in person before you decide.
7922 Kingspointe Pkwy Ste 110Orlando, FL 32819
- Monday to Friday9:00 AM to 5:00 PM
- SaturdayClosed
- SundayClosed
Estimates
Request a home addition estimate in Lake Mary
Tell us about the project. We call back within 24 to 48 hours to set up the in-home measure, and you get a written estimate after the visit.
- In-home measure and 3D design before you commit
- Licensed general contractor and plumbing contractor
- Permits pulled and inspections handled by us