FAQs 
 

Once I understand your proposal, I can advise clearly on whether it needs planning permission. Some home extensions (/extensions)do fall under permitted development, while others require a full application. I’ll confirm the correct route and prepare the necessary drawings. If you’re unsure, just get in touch (/contact)and I’ll check it for you.

Yes. I prepare the planning drawings, complete the application, upload all required documents and act as your agent throughout the process. Whether it’s a home extension,(/extensions) garage conversion,(/garages) internal alterations (/loft-conversions)or loft conversion,(/loft-conversions) I manage the submission and deal with Planning on your behalf.

Planning applications usually require existing and proposed floor plans, elevations, a site plan and sometimes cross‑sections. All drawings are prepared from a detailed measured survey and are included within my service.

Planning drawings are created primarily to obtain approval from the Planning Service demonstrating how a proposed extension fits in. These drawings highlight the overall design, site layout, and compliance with planning policies without going into a lot of detail. In contrast, construction drawings are highly detailed used by builders during the construction stage. They include precise measurements, materials, structural details, and technical specifications necessary to accurately execute the design. With 40 years of experience, GT Building Design ensures both sets of drawings are meticulously prepared, helping homeowners navigate approvals smoothly while providing clear guidance for construction to achieve a successful project outcome.

Northern Ireland has its own permitted development rules. Some smaller extensions (/extensions)may fall within these limits, but they still should be submitted to Planning for a Certificate of Lawfulness. Once we agree design proposals and we know the size and position of your extension, I can confirm whether it qualifies or whether a full planning application is needed.

Householder applications take between 8 to 16 weeks. This varies depending on the council’s workload and whether additional information is requested. I keep you updated throughout so you always know what stage your application is at.

Neighbour objections are common and don’t automatically stop a proposal. The planning case officer will assess your design against planning policy. If concerns are raised, I can advise on any adjustments that may help address them while keeping your project on track.

Some sites may require additional information such as levels, sections or a topographical survey. In some cases the Planning Service may ask for this. Once we agree design proposals I can confirm whether these are needed for your application.

Under current permitted development rights, you can build a two-storey rear extension without planning permission, but there are important limitations doing so. At GT Building Design, I will provide expert guidance to help you navigate permitted development rules to create functional, aesthetically pleasing extensions (/extensions)that enhance your home while complying with all legal requirements.

Yes. All garage conversions (/garages)should be submitted to Planning. Many councils now require a full Planning (PHD) application, especially where the garage door is being removed or the external appearance is changing. In some cases the work may still fall under permitted development, but the council will confirm this through the application process. I’ll advise on the correct route once I understand your proposal.

Most simple loft conversions (/loft-conversions)that stay within the existing roof space do not need full planning permission, but any dormer window or change to the roof shape normally does. Because councils in Northern Ireland often take a cautious approach, all loft conversions should be submitted to Planning so the council can confirm whether it is permitted development or requires a full Planning (PHD) application. Once I understand your proposal, I’ll advise on the correct route and prepare the submission for you.

If Planning Service NI have indicated that they are going to refuse your application, they will explain the reasons. I will review this with you and advise on the best next step. This will likely mean revising the design to address their specific concerns. Many refusals can be resolved with the right adjustments before a refusal notice is issued.

Yes, conservation areas have stricter rules. Please let me know in advance if your home is in a conservation area. Even small changes that would normally fall under permitted development may require full planning permission. I can also check with the planning service and advise on what may be allowed.

Not always. Boundary distances depend on the type of extension, height, windows, and impact on neighbours. I assess your site layout and advise on what is achievable under Northern Ireland planning policy so you avoid designs that are likely to be refused.

Yes. If the design changes significantly or addresses previous concerns, a new application can be submitted. I prepare updated drawings and ensure the revised proposal aligns with planning policy to improve your chances of approval.