Göktürk, IstanbulArchitecture studio
SG Concept Architecture: villas, residences, offices and showrooms in Istanbul, from concept to turnkey delivery.
scroll, let's step inside ↓
A-01 · FRONT FACADE
Scale 1/100 · since 2021
07Projects
from drawing to reality, a few sheets
An apartment renovation at Privé Kemer in Göktürk, Istanbul, without skirting boards, door frames or joints: microcement floors, Italian paint walls and calm living spaces opening onto the forest view.
A safe and free-spirited children's room inspired by nature, with arch forms, olive green velvet panels and abacus-style beads.
Landscape and outdoor design for a detached house in Çakırlar, Düzce: a garden that completes the black-framed architecture with timber decking, layered planting and warm night lighting.
The KLN Logistics office at Istanbul Airport: floor-to-ceiling walnut cabinets, black marble-look counters and the brand's orange create an orderly, warm workspace.
A daylit café interior that makes guests want to stay, with white relief walls, black pendant lamps, warm timber and terracotta seating.
A characterful home interior where every corner tells a story, with patterned armchairs, burgundy accents, a sputnik chandelier and warm wood.
Living and dining spaces where classic details meet a contemporary reading: a crystal chandelier, a mirrored dining table, a velvet chesterfield sofa and sheer curtains.
A showroom design for Melza Textile that treats the facade and interior together: brass columns, burgundy accents and a display setting that puts the product on stage.
An office design for VeNatura that rethinks a corporate office with the warmth of a hotel lobby, through arched ceiling rings and a balance of cream and burgundy.
Concept designs and photorealistic 3D visualisations that bring a space to life before the first stone is laid: villa living rooms, bedrooms, bathrooms, kitchens and studios.
all of themAll projects →08Process
from the first coffee to the keys
coffee and questions
We talk about your needs, your budget and the potential of the space. If needed, we visit the site.
the character of the space
Measurements, survey and first sketches. Together we set the language of materials, colour and light.
see it before it's built
Photorealistic renders let you see the space from every angle, change it and approve it.
every detail drawn
Technical drawings, details, custom furniture and the bill of quantities are prepared.
same team, on site
We run the site in the same design language and report every stage to you.
the keys are yours
After final checks and cleaning, the space is handed over ready to use.
Free site visit
Tick the site visit option in the quote form and pick a day and time from the calendar. We take measurements and photos and talk about your project on site. We only do two site visits a day.
weekdays 10:30 and 15:00
09Videos
from the site, the studio, the field
10FAQ
ask what's on your mind
Can't find the answer you need? Write to us and we'll get back to you the same day.
Architecture, interior design, consulting, 3D design and construction. We carry every stage from concept design to turnkey delivery in the same design language, and we also design custom furniture.
We are based in Göktürk, Istanbul. We run villa, home, office and commercial projects in Kemerburgaz, Kemer Country, Eyüpsultan, Sarıyer, Levent and across Istanbul.
Both. You can hire us for design or consulting only, or leave the construction to us on a turnkey basis.
Yes. In the concept stage we prepare photorealistic 3D renders, and we make material and colour decisions together on those renders.
Ideally before the shell construction or renovation begins. That way plumbing, lighting and custom furniture decisions are built into the project from the start.
It depends on the scope. Paint and flooring can be done in a few weeks, while a full renovation with plumbing, bathrooms, kitchen and custom furniture can take a few months. We give a firm schedule after the site visit.
For most projects, by floor area and scope. Our proposal states in writing how many 3D renders and how many revision rounds are included.
When you reach us on WhatsApp or by phone, we schedule an introductory meeting. We talk about your needs, your expectations and the potential of the space.
SG Concept Architecture · Göktürk, Eyüpsultan / Istanbul
11Journal
notes on architecture, materials and the site
· 3 min read
The most expensive mistake in a bathroom renovation is made where you cannot see it. Waterproofing, falls, plumbing, ventilation and fixtures, in the right order.
Guide ·
In one- and two-bedroom apartments you cannot add square metres, but you can enlarge the perception of space. Layout, storage, colour, light and multi-purpose furniture.
Guide ·
Needs that change from infancy to the teenage years, safety, storage, colour and light: how to plan a children's room that will not date in a few years.
Materials ·
Microcement is the material behind seamless floors and one-piece bathrooms. How it is applied, where it works and what to watch out for.
12Brands
good spaces are built with good materials
13Studio
since 2021, Göktürk
Sibel K. Onsekiz
Architect · Founder
the character of the space
Giray Onsekiz
Engineer · Founder
every detail on site
Sibel is an architect, Giray is an engineer. Two people who share life and work at the same table founded SG Concept in Göktürk in 2021. Sibel draws the character of the space; Giray makes sure that line comes to life on site exactly as drawn.
SG Concept Architecture is an architecture and interior design studio based in Göktürk, Istanbul. We start every project with the character of the space and the story of the people who will live in it, turning art, light and carefully chosen materials into an original whole.
For high-end homes, villas, offices and commercial spaces, we run concept design, interior design, custom furniture and construction in the same design language, with the same team.
Our goal is not just to renovate a space, but to design spaces with character that keep their value for many years.
coffee's on us ☕
Göktürk, Eyüpsultan, Istanbul
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