ADU Construction Services by ADU Builders in Westminster, CO
Most homeowners build an accessory dwelling unit for one reason and end up using it for three. A suite for a parent becomes a rental after a few years. A rental becomes space for an adult child. That space becomes an office, then a guest house, then a rental again. The unit that handles all of that gracefully was designed for it from the beginning, and the one that cannot was designed for a single moment.
Faros builds accessory dwelling units in Westminster to change roles without being rebuilt. Ricardo has worked Front Range construction for more than 30 years and runs every project himself. When you are comparing quotes for ADU construction in Westminster, ask what the unit becomes in ten years. It is a fair question and most bids have no answer.
One ADU, Several Futures
Designing for flexibility costs very little during construction and a great deal to add later. A few decisions carry most of the benefit.
We rough in plumbing and electrical for a future kitchen even when the current plan is a bedroom suite, because opening a slab or a wall later is the expensive part. We size the electrical feed and locate the panel so a separate meter can be added if the unit ever becomes a rental you want billed independently. We plan the entry, the outdoor space, and the parking so the unit can operate fully independently, whether or not it does today.
On attached units we frequently build a connecting door between the main house and the ADU. Locked and finished, the two are entirely separate homes. Open, they are one house with a wing. Families caring for a parent who is independent now and may not be in five years get real value from that, and it is nearly impossible to add after the fact.
Privacy Between Two Households
Two households on one lot succeed or fail on privacy, and privacy is a design problem rather than a fencing problem. We work it deliberately.
Windows get placed so the ADU does not look into the main house and the main house does not look into the ADU. Entries get separated so neither household walks past the other’s door to reach their own. Each side gets its own defined outdoor space, screened with fencing, planting, or grade rather than left as one shared yard that nobody feels comfortable using. Parking and trash areas are located so daily routines do not overlap.
None of this is expensive. All of it has to happen before the building is sited, because after the foundation is poured your options are curtains. On a Westminster lot of typical size these decisions are what make the arrangement livable for everyone rather than merely legal.
Build Up When You Cannot Build Out
Lot coverage limits stop plenty of Westminster ADU projects before they start. A detached unit at grade takes footprint, and once you add the required parking and access, many lots simply do not have the allowable area left. Building vertically solves it. A unit above a garage, whether an existing detached structure or a new one, adds living space without adding much footprint, and it usually preserves the yard you were trying to protect. A two story unit on a small footprint does the same thing. Both approaches also tend to appraise well, because the finished square footage is genuine independent living space rather than converted storage.
These builds are more involved than a single story unit. They require structural evaluation of anything existing, engineered floor systems, code compliant stair or exterior access, and careful attention to how the mass reads against the main house. We handle all of it, and we run the lot coverage math for your specific parcel before recommending a direction, so we are not proposing something the site cannot legally hold.
Cheap to Run, Easy to Rent
A small building is the easiest place in residential construction to reach genuinely low operating costs, because the envelope is compact and the loads are small. It is also where builders most often cut corners, since nobody is inspecting a rental for comfort.
We build ADUs with a well sealed, well insulated envelope, efficient all electric mechanical systems where they suit the project, and conduit run for future solar even when panels are not part of the current budget. The result is a unit that costs very little to heat and cool.
That matters commercially in two directions. If you are renting, low utility costs make the unit easier to lease and support a stronger rent, and they protect you if utilities are included. If a family member is living there on a fixed income, the monthly cost of the space is a real part of whether the arrangement works. Either way, the upgrade is cheap at this scale and it pays for itself over an ownership horizon measured in decades.
Request Your Westminster ADU Quote
Faros manages the whole project: feasibility and lot coverage review, design, permitting through the City of Westminster, structural engineering, construction, and the site and fencing work that makes two households workable on one property. As experienced ADU builders in Westminster, one person is accountable from the first walkthrough to the final inspection.
Call or request a quote and we will look at your property. You will get a written estimate, an honest read on whether building up or out fits your lot, and a plan for a unit that still suits you when your reasons for building it have changed.