Architectural Services Loft Conversion Design
Creating additional bedrooms, home offices and flexible living spaces
Unlock the Potential of Your Loft
A loft conversion is one of the most effective ways to create additional living space without extending into your garden. Whether you need an extra bedroom, home office, guest suite or a flexible family space, a well-designed loft conversion can add significant value to your home while making better use of existing space.
At Sasse Architectural Services, we design loft conversions that feel like a natural extension of the home rather than an afterthought. We carefully consider head height, natural light, staircase design and room layout to ensure the new space is comfortable, practical and enjoyable to use.
Every property is different, and we develop tailored solutions that respond to the character of the house, planning considerations and your family’s needs. From simple rooflight conversions to dormers and more complex roof alterations, we guide you through the design, planning and technical stages of the project.
Our goal is to create beautiful, functional loft spaces that integrate seamlessly with the rest of your home.

Testimonials
I worked with Sasse Architectural Services on a property in Harpenden. I found them very efficient and quick to get the drawings done. From a builders point of view the drawings were excellent and there was no issues. I would have no problem referring Sasse to anyone looking for an architect.
Fernanda was very responsive, helpful and knowledgeable with my HMO changes. Many thanks.
Very professional and well thought out designs!
How it works
Consultation
Get in touch with us to arrange your free site visit and we will provide you with a no-obligation quote.
Design / Plans / Application
We will create your bespoke concept design plans, handle the planning process, and develop your construction drawings.
Approval / Construction
With all permissions and approvals in place, we will connect you with one of our trusted partner builders to complete the construction work.
Why Choose Sasse Architectural Services
Intelligent Space Planning
We don't simply draw extensions. We carefully consider how every room connects and functions. Our bespoke architectural services focus on improving your quality of life by creating beautiful, functional spaces that fit your lifestyle. Whether you’re moving house, a growing family or an elderly couple looking to downsize, we deliver cost-effective solutions to meet your needs.
Planning Expertise
With extensive experience across St Albans, Harpenden, Hemel Hempstead, Wheathampstead, Berkhampstead, and North London, we understand local planning requirements and common challenges.
Practical Construction Knowledge
Our designs are developed with buildability and budget in mind. Our experience extends beyond design. With a strong understanding of construction, refurbishment and property development, we create homes that are attractive and practical.
Personal Service & Trust
We work closely with every client from the first meeting through to construction. We prioritise your satisfaction and peace of mind. We provide comprehensive support, including handling all necessary drawings and approvals with councils and building control, ensuring a smooth and stress-free process.
Our Promise
We promise to provide transparent communication, exceptional design quality and ongoing support throughout your project. Your home is our priority and we stand firmly behind our work to ensure your complete satisfaction.
- 15+ years UK experience
- Hundreds of completed projects
- Planning and technical expertise
- Hertfordshire & North London specialists
- Personal service from start to finish






