Sarah Jefferys Design

Sarah Jefferys Design Boutique architecture firm that specializes in residential, commercial and small institutional design, including new construction, additions and renovations.

Boutique Design firm that specializes in residential, commercial and small institutional design, including new construction, additions and renovations.

08/27/2026

Beautiful design goes beyond what you see. This pool was designed to nestle seamlessly into the surrounding landscape.

☀️ This pool is also as smart as it is sleek: It's heated using solar energy, and a thermal pool cover locks in heat overnight, so the heater is rarely needed.

08/25/2026

Behind every finished project is a day full of cameras, conversations, and countless details coming together. 🎥

A little BTS inside look from our Connecticut Passive House photoshoot... we can't wait to share the finished images!

The beauty of a space is often found in the details.From carefully considered material pairings to custom millwork, ligh...
08/18/2026

The beauty of a space is often found in the details.

From carefully considered material pairings to custom millwork, lighting, and the smallest finishing touches, every decision is intentional. It's this level of thought and craftsmanship that transforms a house into a home that feels effortless, timeless, and uniquely yours.

08/13/2026

Every detail matters when designing a Passive House.

Our Connecticut project is thoughtfully crafted to balance beauty, comfort, and exceptional performance... all to create a home that's as efficient as it is timeless.

The final days of summer are made for homes like this.Designed for gathering, creating, and taking in panoramic views of...
08/06/2026

The final days of summer are made for homes like this.

Designed for gathering, creating, and taking in panoramic views of the Maine coastline, this contemporary retreat blends timeless coastal character with modern living, proving that thoughtful design is always in season.

Sustainability starts with thoughtful material choices. From locally sourced cyprus siding and pine to triple-pane windo...
07/29/2026

Sustainability starts with thoughtful material choices. From locally sourced cyprus siding and pine to triple-pane windows, we look for ways to reduce environmental impact without compromising on beauty or performance.

No project is perfectly ecological, but every decision—from where materials come from to how they are made—can contribute to a healthier home and a more responsible approach to design.

There's always an element of surprise. ✨The detail you don't expect. The material that stops you mid-room. The moment wh...
07/21/2026

There's always an element of surprise. ✨

The detail you don't expect. The material that stops you mid-room. The moment where a space goes from beautiful to unforgettable.

It's something we build into every single project, intentionally. Because good design should make you feel something, not just look at something.

Swipe to see some of our favorite unexpected moments. →

Before → After. The difference a vision makes.This mid-century modern home in Bellport, Long Island took on a full backy...
07/16/2026

Before → After. The difference a vision makes.

This mid-century modern home in Bellport, Long Island took on a full backyard transformation with a lush lawn, clean pool, mature landscaping, and a façade that finally lives up to the bones of the house.

Sometimes the best design move is simply letting a home breathe.

While the rest of the city cranks the AC, this Carroll Gardens brownstone stays naturally cool... by design.Passive hous...
07/14/2026

While the rest of the city cranks the AC, this Carroll Gardens brownstone stays naturally cool... by design.

Passive house construction uses continuous insulation, triple-glazed windows, and an airtight fresh air system to maintain consistent temps year-round. Up to 70% less energy than a typical home. Less noise, better air quality, lower bills.

Sustainable design isn't a sacrifice — it's an upgrade.

Collaborators:






07/09/2026

The moment it all comes together from original design render to final instal.

Sarah checked out some final install details of this Connecticut passive house bathroom — and it's everything. Sleek, minimal, considered down to the last detail.

This is what we work toward: a space so quiet and precise it feels less like a bathroom and more like a breath.

Address

611 Broadway, Suite 424
New York, NY
10012

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12126251450

Website

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