
Case Study: Dormer Loft Conversion in Halesowen
This three-bedroom detached house in Halesowen required a rear dormer loft conversion to create a spacious master bedroom with an en-suite.
Using 3D design to find the right solution
The project presented a unique structural challenge: the property had an existing ground floor extension with a steel beam supporting the first floor and roof structure. Using our comprehensive survey process and interactive 3D design technology, we successfully navigated these complexities to deliver a stunning, practical living space that maximised the home’s potential and added valuable square footage to this family home.
Solving the Steal Beam Challenge
During the initial survey, we discovered the homeowners had previously completed a ground floor extension to create an open-plan kitchen area. This renovation involved removing the back wall of the house and installing a steel beam to support the first-floor walls, ceilings, and roof structure above.
This existing steel beam created an important structural consideration for the loft conversion. The new dormer required its own load-bearing calculations, and we needed to ensure compatibility between the existing support system and our new structural requirements.

Our Design Process
The project began with a call from the homeowners requesting an initial survey. During our visit, we conducted a comprehensive assessment, asking all the relevant questions needed to compile a suitable design and accurate quotation. This included carefully documenting the existing steel beam configuration and ground floor extension details.
After completing our survey, we developed a tailored design solution and returned to present our proposal. Using our interactive 3D model technology—a service included with every O’Sullivan Lofts survey—we showed the homeowners a fully rendered visualisation of their proposed loft conversion. This allowed them to understand the full scope of the transformation and see how the new space would function for daily living.
Quality Control
Once the homeowners were satisfied with the design and comfortable with the costings, we began the behind-the-scenes work that ensures every project meets building regulations. The design went to our architect for initial drawings, then to a structural engineer for detailed calculations that addressed both the new dormer requirements and the existing steel beam configuration. These documents were submitted to building control in preparation for on-site inspections throughout construction.
With all administrative requirements completed and approvals secured, we arranged a start date with the homeowners and commenced the build.
The Beam Solution
Our structural engineer developed a solution that worked harmoniously with the existing ground floor beam system. Through careful calculations and strategic design, we ensured the new dormer structure had sufficient support while maintaining the integrity of the existing load-bearing elements.
The rear dormer was constructed to maximise headroom and natural light, creating a bright, comfortable master bedroom with a modern en-suite bathroom that significantly increased the property value and enhanced the family’s living space.
The result is a transformed living space that adds significant value and functionality to the home—all achieved despite the initial structural complexities.

Finished Space
Frequently Asked Questions
Q: Can I have a loft conversion if I already have a ground floor extension?
A: Yes, absolutely. As this Halesowen project demonstrates, existing extensions and steel beams don’t prevent loft conversions—they just require careful structural planning and expert engineering to ensure compatibility.
Q: How does the 3D visualisation help?
A: Our interactive 3D models allow you to see exactly how your finished loft will look and function before construction begins. This technology is included with every survey at no extra cost, helping you make confident decisions about your project.
Q: Do you handle all the building regulations and approvals?
A: Yes, we manage the entire process—from architect drawings to structural calculations to building control submissions. You’ll have complete peace of mind knowing all regulatory requirements are professionally handled.
Q: What areas do you cover for loft conversions?
A: We serve Halesowen and throughout the West Midlands. View all areas we cover.
Why a Loft Conversion?
Adds space without moving
If you love your home but just don’t have enough space, a loft conversion is the perfect solution.
Boosts property value
Your home is your biggest investment and a loft conversion can pay itself and more if you sell in future.
Cost-effective vs moving
It’s expensive and stressful to move home, so a loft conversion is often better value for money.
Tailored to your needs
Design your loft conversion so it meets your exact requirements.


Completed Projects
See a small sample of successfully completed loft conversion projects below. View a larger selection of our completed projects in the gallery.
Areas We Cover
We work across the West Midlands and Staffordshire, including Wolverhampton, Dudley, Bilston, Halesowen, West Bromwich, Sedgley and more. If you’re unsure if we cover your area, please contact us and we can advise.







