PROJECTS
LANDSCAPES & POOLS

Outdoor Family Entertaining at its Finest
Landscape Design, Pools
Luxurious Pool Landscape
Landscape Design, Pools
Poolside Reverie at an Alpaca Farm
Landscape Design, Pools
Hudson Valley Idyll
Landscape Design, Pools
A Garden Designed for Celebrations
Landscape Design
Arts & Crafts Landscape Haven
Landscape Design
Garden & Pool Getaway
Landscape Design, Pools
A Contemporary & Artful Landscape
Landscape Design
Elegance in the Garden
Landscape Design, Pools
Elegance and Views in a Hudson Valley Hilltop
Landscape Design, Pools
Majestic Westchester – Hudson River Views
Landscape Design, Pools
Outdoor Living in a Glorious Landscape
Landscape Design, Pools
Resort Living at Home
Landscape Design, Pools
ABOUT JOHNSEN
WESTCHESTER and FAIRFIELD + LANDSCAPES & POOLS
Distinctive and Inspired Landscapes, Swimming Pools & Spas
Our passion, at Johnsen Landscapes & Pools, is to transform properties into outstanding outdoor settings that are inviting, distinctive, and enjoyable. Imagine sitting in a peaceful terrace garden surrounded with an artful display of flowers & plantings, or entertaining family & friends by your new custom swimming pool and spa, or hosting an outdoor event with anew outdoor kitchen. Beautiful and functional grounds are our specialty.
We will create a site & landscape design plan of your property, illustrating whatever it is you desire – an elegant swimming pool, spa, tennis court, inviting front entry, rear terrace and flower garden, meditative green space, secret garden, or impressive entry drive, and much more – then we apply our expertise to guide the overall construction and installation of your project to a successful conclusion.
We serve many counties in the New York and Connecticut area, including the following: Westchester, Putnam, Dutchess, Columbia, Rockland, Orange, Ulster, Fairfield and Litchfield, Eastchester; as well as New York City including boroughs such as Brooklyn, Manhattan, Riverdale. We also have projects in Massachusetts, Maryland, Florida and California.
Process
Our process begins with an initial discussion about your landscape / swimming pool & spa ‘wish list’ and identifying the unique possibilities of your property. We then prepare a design services proposal for your consideration based on our discussion.
Upon acceptance of our proposal, we move forward with developing a detailed and custom design plan for your property. Once your design is completed and approved, we are available to guide the construction & installation of your project to a smooth and successful conclusion!
Team
To learn about our team, read more…
SERVICES
DESIGN - BUILD - MAINTAIN
Design Service
Our design process starts with a comprehensive assessment of the possibilities of your property’s inherent characteristics in concert with your wants and wishes. We then develop our design plans utilizing computer aided design technology (CAD) to address as needed: grading, design layout and details, material / plant / equipment / furniture schedules / lighting, drainage, and finally construction & installation specifications and more, as may be required. We work closely throughout the process with our clients and easily collaborate as required with architects, engineers, surveyors and other professionals to implement a shared vision.
A more detailed description of our design service is provided within our agreement document, which is available upon request and after an initial meeting.
Construction Project Management Service
Our Construction Project Management Services includes pre-construction review & advice, pre-construction budget development, complete construction oversight / coordination / scheduling, project administration, cost estimating services, acting as client representative and much more for all of your construction & installation needs such as:
Saltwater swimming pools & spas ● Plunge pools ● Entire landscape installations ● General sitework ● Stonewalls & terraces ● Decks ● Patios ● Plant & flower beds ● Trees & shrubs ● Lawns ● Tennis & sports courts ● Storm water management and drainage systems ● Landscape lighting ● Landscape irrigation ● Fences, gates & pergolas ● Driveways and main front entrances ● Water features ● Pool house & cabana ● Home / residential additions & remodeling ● and much more.
A more detailed description of our construction project management service is provided within our agreement document, which is available upon request and after an initial meeting.
Property and Landscape Care Consultation & Oversight Service
Our Property and Landscape Care Consultation & Oversight Service provides expert advice and oversight of the required horticultural activities, as well as home & property maintenance, repair tasks and monitoring necessary to keep your home and grounds looking and performing their best.
A more detailed description of our property and landscape care consultation & oversight service is provided within our agreement document, which is available upon request and after an initial meeting.
In summary, our services provide for a concerted and comprehensive approach, ensuring exceptional outcomes and value, all delivered seamlessly and hassle free.
OUR TEAM

Jan Johnsen
Co-PrincipalJan is an award-winning landscape designer, author and speaker. She studied landscape architecture and received a graduate degree in planning. She has worked in New York, Honolulu, Japan, California, and Washington, DC., Florida, Los Angeles, CA. Her commissions range from small gardens to large landscapes, including swimming pools & spas, and her work has been featured in many publications. Her books include ‘Gardentopia: Design Basics for Creating Beautiful Outdoor Spaces’ (2019, W.W. Norton), ‘The Spirit of Stone – 101 Practical & Creative Stonescaping Ideas for Your Garden’ (2017, St Lynn’s Press) and ‘Heaven is a Garden’ (2014). Jan shares her garden advice on her substack page, Gardentopia, and on our Johnsen Landscapes & Pools Facebook page.

Rafael Algarin
Co-PrincipalRafael’s lifelong commitment to a disciplined and expert approach to delivering our projects regularly exceeds our client’s expectations. He has a long and extensive experience in managing both residential and commercial construction & installation projects and has worked in New York, Connecticut, Vermont and Louisiana. He brings to every project a wide breath and depth of experience combined with a keen eye for details while uncovering the most efficient and cost-effective path forward for the successful completion of your project. His professional, comprehensive and efficient approach ensures exceptional outcomes and value, all delivered seamlessly and hassle free.

Laura McKillop
Senior Design AssociateLaura’s passion for plants and design is evident in every project we do. She received a master’s degree in Landscape Design from Columbia University and a design certificate from New York Botanical Garden. She is a long time instructor at the NY Botanical Garden. Her design expertise and commitment to client service ensures exceptional results on all levels. Our clients love working with Laura and appreciate her detailed follow through on every project, large and small.
PRESS
Gardentopia by Jan Johnsen
Published 2019Gardentopia by Jan Johnsen
By Jan Johnsen
Any backyard has the potential to refresh and inspire if you know what to do. Jan Johnsen’s new book, Gardentopia: Design Basics for Creating Beautiful Outdoor Spaces, will delight all garden lovers with over 130 lushly illustrated landscape design and planting suggestions.
Published by W.W. Norton
The Spirit of Stone by Jan Johnsen
Published 2017The Spirit of Stone by Jan Johnsen
By Jan Johnsen
In The Spirit of Stone, award-winning designer Jan Johnsen presents a richly photographed, authoritative guide to creative and practical uses for stone in the landscape: steps, paths, garden walls, dry streams, benches, rock gardens, driveways and more. The Spirit of Stone is an essential idea book and how-to for designers, stonemasons, builders, homeowners and DIYers.
Published by St. Lynn’s Press
Heaven is a Garden by Jan Johnsen
Published 2014Heaven is a Garden by Jan Johnsen
By Jan Johnsen
Why do some gardens make us feel so wonderful, relaxed and refreshed? Using ideas based on ancient and modern practices, this book shows how you can uplift yourself and others in a serene setting designed for “unplugging” and relaxing. Whether you are intending to create a lovely garden or just thinking about a future outdoor haven, Heaven is a Garden will help you see your backyard in a whole new light and reawaken an awareness of the wonders of Nature. “Simplicity, Sanctuary and Delight” is the guideline that noted landscape designer Jan Johnsen recommends in this elegantly written book.
Published by St. Lynn’s Press
Horticulture Magazine
September/October 2017Horticulture Magazine
By Jan Johnsen
Key considerations for designing a stone walkway that suits you garden’s style, climate and functions.
Garden Design Magazine
Summer 2016Garden Design Magazine
How Jan Johnsen blends ancient and modern ways to create gardens that simply make you feel good.
APLD Merit Award
2014APLD Merit Award
Project Title : Riverhouse
Project Location : Briarcliff Manor, NY
2014 Award: The site is a large, steeply sloped, partially wooded, west-facing property. It is characterized by large rock outcrops and the topsoil layer is fairly thin. The site faces the Hudson River. Our inspiration for the property was to create a feeling similar to that of the Hudson River School painting style: refined yet naturalistic. The design creates an impressive yet harmonious setting that enhances the spectacular nature of the site. Our environmental objective was to minimize storm runoff, retain as much of the native rock outcrops as possible and use plants suitable for slope conditions.
LoHud.com Journal News
June 2013LoHud.com Journal News
Written by DEBRA KEISER
For The Journal News/LoHud.com – June 28, 2013
Just like people, pools, too, have personality – if they’re lucky. Landscape designer Jan Johnsen, who studied and worked in Japan and Hawaii, has designed many over the last 40 years, and she believes every one of them has its own persona.
“There is an innate personality to each site – something I call, ‘the power of place.’ It refers to the overall appearance and feeling of a place,” she says. “My approach is to marry the site to the design so it makes sense on a visceral level.”
Of course, Johnsen’s plans also take into account the owner’s vision and personal tastes, but the site’s personality traits have to be considered.
“I look at the view, the native trees and shrubs, the geology, the orientation, the sun/ shade patterns and more,” she says. For instance, if the site has tall mature trees, you don’t clear cut; you blend them into the design. Working in concert with the site means that the finished layout will be more serene, she says. “I strive to create the feeling of calm.”
Read full article:
Westchester Home
Spring 2012Westchester Home
Written by Tovah Martin
Westchester Home – 2012
A perilous slope left this Chappaqua property virtually inaccessible before a savvy landscape designer turned dysfunctional into dramatic.
Most people see a slope and assume that it’s downhill all the way. But not Jan Johnsen. She sees slopes as totally upbeat.
The fact that grass steps are Jan Johnsen’s signature is telling. It says something about a landscape architect who strives to soften every element of a garden-cushioning access to the upwardly mobile aspects of a landscape. But the fact that Johnsen focuses on steps also implies that she’s dedicated to bringing every space in a yard into the dialogue. Show Johnsen a property with a breakneck hill that would give Jack and Jill the jitters, and she’ll see a way to utilize every square foot of space without worrying about taking a tumble. That’s exactly what she’s been doing for 18 years, working for a family in Chappaqua who came to her with the hill from hell. Not only did she transform it into herbaceous heaven, but she harnessed the uppermost areas to turn them into viewing platforms and utilized all the acreage in between.
Read full article:

914 INC.
2011914 INC.
Born with a Green Thumb – Jan Johnsen
Written by NLC
914INC Magazine – 2011
When she was in the third grade, Jan Johnsen planted corn seeds on the windowsill of her family’s New York apartment. She soon branched out to the fire escape, where pots of flowers and vegetables thrived. At 16, she won first prize in the Manhattan borough-wide science fair with an experiment on how sound affects the growth of plants. “My teacher thought it was a stupid idea,” she says, “and that made me want to do it more. I just intuitively knew there was a connection.” Since then, scientists have learned that the high-frequency vibrations of birdsong open up the pores on plant leaves so that they absorb more air and nutrients.
After 15 years of working for other firms, Johnsen opened her own landscape company in 1986 with just $3,000. “I bought a used computer from the PennySaver and started out in a one-room office I rented from a tree company.”
Read full article:

Home & Design
Summer 2006Home & Design
Written by Bill Cary
Home & Design (The Journal News) – Summer 2006
“People say pools are only for four months of the year in this climate, but what a great four months it is.” – Jan Johnsen
photo: Mark Vergari
As you make your way down along the grassy path from the 1930s hilltop house on Lounsbury Road in Croton-on-Hudson to the secluded pool area that sits just below the apple orchard, a hint of sun warms the back of your neck just before you settle into one of the large wooden chairs at the edge of the pool.
The ornamental grasses behind you sway gently as a river breeze catches the seed heads, sending them bobbing in the brightening morning light. The shadow of the great oak that stands between you and the Hudson begins to stretch out across the hillside and the gauzy morning haze over the river seems to be lifting, bringing with it the promise of another great day poolside.
“When people put in a pool, their entire use of their property changes,” says landscape designer Jan Johnsen, the designer who transformed this rocky ledge into an oasis for a Croton family of four. “You’ll be out here in the early morning and then later in the evening.”
“Your garden changes, too,” says Johnsen, who also lives in Croton. “It becomes much more immediate, much more intimate – you’re living inside your garden now.”
Read full article:
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CONTACT
Telephone
New York: 914.666.4190
Connecticut: 203.629.9001
Fax: 914.242.9104
3 Morgan Drive
PO 1011
Mount Kisco, NY 10549
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