ADU BUILDER — WEST HARTFORD, CT
In-Law Suites & ADUs Built for West Hartford.
West Hartford's established neighborhoods are full of mid-century colonials and ranches — the perfect starting point for an attached ADU, in-law suite, or basement conversion. Lagace Construction handles permits, design, and build.
25+Years Experience
500+Projects Completed
★ 4.9Google Rated
100%Licensed & Insured
PROUD TO USE INDUSTRY-LEADING BRANDS
WHAT WE BUILD IN WEST HARTFORD
A second unit on your West Hartford property.
West Hartford homeowners are increasingly using ADUs to house aging parents, adult children, or generate rental income — all without moving. Connecticut's 2026 ADU law now requires most municipalities, including West Hartford, to allow accessory dwelling units on single-family lots.Whether you want to convert your basement into a self-contained apartment, add an in-law wing to your existing home, or build a detached backyard cottage, Lagace Construction designs, engineers, and permits it for you — one crew, start to finish.- Basement ADU conversions with egress windows & full kitchen
- Attached in-law wing additions with private entrance
- Detached backyard ADU cottages
- Garage-with-living-above on existing garage footprint
- West Hartford zoning research & permit applications
- Full code-compliant build — passes West Hartford CO inspection
WHY WEST HARTFORD
One of Connecticut's best markets for ADU investment.
West Hartford's high property values — median home prices well above state average — mean every square foot you add generates significant return. An ADU in West Hartford doesn't just house a family member; it appreciates alongside one of Connecticut's strongest real estate markets.
Mid-century homes. Modern living.
Much of West Hartford's housing stock was built between 1945 and 1975 — solid construction with full basements, decent ceiling heights, and floor plans that adapt well to ADU conversion. These homes are underutilized by modern standards and often the most cost-effective candidates for basement or attached ADU projects.We've built throughout Hartford County for over 25 years. Our crews know local building departments, permitting timelines, and the specific code requirements that apply to West Hartford ADU projects.- Familiar with West Hartford building & zoning department
- Experienced with in-town setback and lot coverage rules
- All work permitted and inspected — no shortcuts
- Licensed NHC contractor: #NHC-0016939
25+Years CT Experience
500+Projects Built
100%In-House Crew
★ 4.9Google Rated
INVESTMENT GUIDE
What does an ADU cost in West Hartford?
Pricing depends on ADU type, finish level, and site conditions. Here's a realistic West Hartford range.Basement Conversion
$85K – $155K
Convert an existing West Hartford basement into a fully permitted, self-contained living unit.- Egress windows & door
- Full kitchen & bathroom
- Separate electrical sub-panel
- Permits & CO included
Attached ADU Addition
$160K – $310K
An in-law wing or second-floor unit added to your existing West Hartford home with its own entrance.- Private entrance & utility hookups
- Full kitchen, bedroom, bath
- Tied into existing foundation & roof
- Full design-build service
Detached ADU Cottage
$210K – $460K
A fully independent structure on your West Hartford lot — carriage house, backyard cottage, or garage-with-living-above.- New foundation & structure
- Full utilities & mechanicals
- Maximum privacy & independence
- Best for rental income
YOUR QUESTIONS ANSWERED
Frequently Asked Questions — ADUs in West Hartford
Is an ADU allowed on my West Hartford property?
As of 2026, Connecticut state law requires municipalities — including West Hartford — to allow at least one ADU per single-family residential lot. Detached ADUs and attached ADUs are both permitted, though each comes with specific setback, size, and design requirements. We research your parcel's specific constraints during the initial consultation at no charge.How long does permitting take with the West Hartford building department?
West Hartford's building department is generally responsive. Expect 4–8 weeks for permit approval on a straightforward ADU project. Projects requiring variances or zoning board approval may take longer. We handle all permit applications, drawings, and department follow-ups on your behalf.Can I rent out my ADU in West Hartford?
Yes. ADUs in West Hartford can be rented to long-term tenants. Short-term rentals (Airbnb-style) are subject to additional local rules. With West Hartford's strong rental demand and proximity to CCSU, UConn Law, and Hartford healthcare employers, ADU rental income is substantial in this market.What's the difference between an ADU and an in-law suite?
An in-law suite is an ADU — specifically an attached one. The key distinction is that a true ADU (vs. a finished basement room) has its own private entrance, full kitchen, and bathroom, making it a legally separate dwelling unit. This distinction matters for both permitting and for renting it independently.Do you handle the full project or just construction?
We handle everything: initial site assessment, design, engineering drawings, permit applications, all construction trades (framing, plumbing, electrical, HVAC, finish work), inspections, and final certificate of occupancy. You don't need to hire a separate architect or coordinate multiple contractors. START YOUR PROJECT
Book a free, no-pressure quote.
Pick a time that works for you. Scott or one of our project leads will visit your home, walk the project with you, and follow up with a clear written estimate — usually within 5 business days.- On-site consultation, no obligation
- Line-itemized written estimate
- Real timelines and a real start date
- CT Licensed & Insured (Reg. #NHC-0016939)
Prefer to call? Reach Scott directly at (860) 933-2700
Serving Hartford & Tolland Counties
Based in Andover, CT — building ADUs and additions across central and eastern Connecticut for over 25 years.
West HartfordGlastonburyFarmingtonHebronCoventryBoltonManchesterTollandAndoverColumbiaVernonEllingtonMarlboroughEast HamptonWindsor
