Queen Boss Construction Queen BossConstruction

Accessory dwelling units

A guest house, a rental, a place for family to land. A small building is still a building — setbacks, services, and a permit path entirely its own.

Lime plaster Slate White oak

Before the finishes

What people actually
come to us about.

Nobody goes looking for a contractor in the abstract. These are the three things we hear first, and what we do about each of them.

Your ordinance, read for your lot

Size caps, height, setbacks, owner-occupancy and parking, answered in writing before design starts.

Rental is a separate question

Whether you may let it, short or long term, is decided by the ordinance and sometimes by an HOA. It can change the design.

One permit path of its own

An ADU is a dwelling. It is permitted and inspected as one, not as an outbuilding.

Trenching is cheap, rock is not

The run from the main house for water, waste and power is priced off what is actually in the ground.

Metered to suit the use

Separate or shared, decided by how you intend to use it rather than by what is easiest to install.

Falls and connections

Waste needs a gradient. Where the unit sits is partly a plumbing decision.

Detailed to match the house

Roof pitch, eaves, window proportion and cladding drawn from the main residence.

Real ceiling height

The single thing that decides whether a small building feels temporary or permanent.

Sited, not squeezed

Placed for light, privacy and approach, within what the setbacks permit.

Three ways to do it

A small building is still a building.

A one-bedroom cottage, a studio with a porch, a pool house with a bathroom — all of them a dwelling with its own permit path, and all of them detailed to sit in the garden as though they were always there. The photographs are references for a treatment rather than our own projects.

Our process

How an ADU actually runs.

Six stages, in order, with what you get at the end of each one. Nothing here starts until the stage before it is finished and signed off — which is the whole reason the schedule holds.

01

Can you build one here

Zoning, lot size, setbacks, height and coverage, plus whatever the local ordinance says about accessory units specifically. The rules differ by jurisdiction and change more often than most.

What you get

A written answer on what is permitted on your lot.

02

Siting

Where it goes on the plot: access, privacy from the main house and from neighbours, where the sun is, and how services will reach it. Siting decides more about how an ADU feels than its floor plan does.

What you get

A site plan showing the unit, access and service runs.

03

Design at small scale

A small building is an exercise in not wasting a square foot. Storage, ceiling height, and where the daylight comes from do the work that floor area does in a larger house.

What you get

Plans, elevations and a storage strategy.

04

Services and metering

Water, waste, power and heating run from the main house or brought in separately, and metered to suit whether the unit will be rented.

What you get

A services plan, and the utility applications where separate supply is needed.

05

Engineering and permit

Foundation and framing engineered and stamped, then submitted. An ADU is its own permit and its own inspections.

What you get

A stamped set, permit issued.

06

Build and connect

Foundation to certificate of occupancy, detailed to match the main house rather than to look temporary — because the resale value of the whole property depends on it not looking temporary.

What you get

Final inspection, certificate, and a closed snag list.

What’s included

In every ADU we build.

  • Zoning and setback check before design starts
  • Services run and metered to suit the use
  • Detailed to match the main house, not to look temporary
  • Its own permit, carried through to inspection

Need inspiration?

Our design team
will guide you.

Bring us the pictures you keep coming back to and our designers take it from there — working from the exterior style of the house, its proportions, its era and its materials, so every room reads as part of the same building rather than a set of separate good ideas.

One vision, carried through, inside and out. The image here is a reference for a treatment, not a photograph of one of our own projects.

Talk to a designer →
See 14 ADU ideas → Named, explained and costed in plain language
Dark timber, stone chimney, deep covered porch

What it takes

Three levels of ADU work.

Every job is priced from its own drawings, so what follows is scope rather than a menu: what falls inside each level, in the order the decisions actually get made. The same three names run through our finish levels below, because the two questions — how much work, and to what standard — are answered together.

Essentialessential scope · ADU

Priced at design

  • A studio or one-bedroom unit
  • Zoning and setback answer in writing before design
  • Foundation, framing, roof and envelope
  • Kitchen, bathroom and living space
  • Services trenched from the main house
  • Detailed to match the main residence
  • Its own permit, carried to final inspection
Most chosen Signaturesignature scope · ADU

Priced at design

  • Everything in Essential, plus:
  • A larger one- or two-bedroom plan
  • Raised ceiling height and full-height glazing to one side
  • A full kitchen rather than a kitchenette
  • Separate metering where the use calls for it
  • Built-in storage designed into the plan
  • Its own entry, path and lighting
Estateestate scope · ADU

Priced at design

  • Everything in Signature, plus:
  • A two-bedroom cottage at the size the ordinance allows
  • Vaulted ceilings and a covered outdoor space
  • High-end finishes matched to the main house
  • Landscape and screening designed as one property
  • Roof, cladding and joinery specified, not selected

Same Queen Boss craftsmanship at every level. Scope and finish are what move the number, never quality of workmanship — and you get an exact figure for your own project after the walk-through and the drawings, not before.

Define the finish

Selection & finish levels.

Two rooms of exactly the same size can cost dramatically different amounts, and the difference is selections. Cabinetry, countertops, tile, fixtures, lighting, appliances, doors, trim and hardware all move the number. These three tiers give us a shared language, so when you say “a $50,000 kitchen” we can talk immediately about what that realistically includes.

Essential~$135–$165 / SFFinishes only · excludes land, site work & structural

A clean, well-built home using quality builder-grade materials — the right choice when maximising budget toward square footage and structure matters most.

Most popularSignature~$165–$210 / SFFinishes only · excludes land, site work & structural

Upgraded materials and brands throughout that elevate everyday livability and long-term durability — without moving into full custom pricing.

Estate~$210–$275+ / SFFinishes only · excludes land, site work & structural

A full custom finish package with premium brands, natural materials, and designer detailing — built for clients who want the home to be a showpiece.

Per square foot, finishes only — excludes land, site work and structural. Same Queen Boss craftsmanship at every tier: the difference is customisation and material investment, never quality of workmanship.

Pre-construction investment

Three stages before a shovel goes in.

Pre-construction stageScopeInvestment
1 — Design & ArchitecturalComplete plan set: layouts, selections, construction drawings & renderings$2,000 – $4,000
2 — Structural EngineeringSite evaluation, calculations & engineer’s stamp (if required)$2,000 – $4,000
3 — City PermitPlan submission & city stamp · permit fees billed at costAt cost
Total pre-constructionFinal range confirmed once scope & areas are set$2,000 – $8,000+

Design, engineering and permit are priced separately from the build, so you can stop at any stage with a set of drawings you own outright.

Financing

Borrow against the house
it is going to be.

A renovation is usually worth more than the house was before it. RenoFi is built on that: their lending partners underwrite against your home’s after-renovation value rather than what it is worth today, which is why the number they can reach is so often larger than a standard home-equity offer.

Explore RenoFi → Opens RenoFi · a separate company
Up to 90%of after-renovation value, per RenoFi
$25k – $750krenovation home equity loans and HELOCs
Up to $75kpersonal loans, on credit and income
11×more on average than standard equity, per RenoFi

RenoFi is not a lender; it works with lending partners who make the loans. Queen Boss Construction is not a lender or a broker, does not arrange credit and takes no part in the application or the decision — we point you at them because clients keep asking who to talk to. All terms, rates and eligibility are between you and the lender.

What moves the number

Where the cost actually goes.

We do not publish prices, because a price quoted before the drawings exist is a number that changes. These are the four things that decide it, so you know what you are choosing between.

Service runs

Distance from the main house to the unit for water, waste and power. Trenching is cheap; rock is not.

Separate metering

Required for some rental arrangements, and a utility process with its own timeline.

Foundation and access

Slope, soil and whether machinery can reach the location at all.

Finish level

A guest suite and a long-term rental are specified differently, and should be.

In their words

Read our client reviews.

Robert is a great communicator and we love working with him and his team.

Adam Peter S.

They are always professional and strive to provide exemplary customer service.

Shannon L.

Common questions

About ADU work.

Can I rent it out?

That depends on your jurisdiction's ordinance, and sometimes on whether the owner occupies the main house. We check it before design, because the answer can change the design.

Does it need its own utilities?

Not always. It depends on the ordinance and on how you intend to use it. Separate metering is worth deciding early because it affects the trenching.

Will it add value?

Generally yes, and more where the local market rents them. It is also the reason it should be detailed to match the house — a unit that reads as temporary appraises as temporary.

Also from us

The rest of what we build.

Get started

Tell us about
your ADU.

A conversation and a walk through the rooms you are thinking about — no charge, and no obligation at the end of it.

704-323-5700 info@queenbossconstruction.com 400 Gilead Rd, Suite 2038 · Huntersville, NC 28070