Building Regulations: Required for Building Work
Every loft conversion and house extension in London must comply with the relevant UK Building Regulations, whether or not planning permission is required. For loft conversions, requirements can cover:
• Structural strength and stability of the new floor and existing structure
• Safe escape routes and appropriate fire protection
• Suitable stairs providing safe access to the new floor
• Fire-resistant doors and protected escape routes where required
• Appropriate insulation and energy performance
• Sound insulation between the converted space and the rooms below
• Electrical installations that comply with the relevant Building Regulations requirements
Specific requirements depend on the property's existing layout, the proposed conversion and the construction details. Richway manages Building Regulations approval and the relevant inspection stages as part of every project's standard scope.
London's housing stock is genuinely diverse, and the right conversion type depends on your roof structure, your street, your borough and what you actually need the space to do. We assess every property individually before making a recommendation because the wrong conversion type, however well built, is still the wrong solution.
The Hip-to-Gable Conversion: For Semis and End-of-Terrace PropertiesA significant proportion of London's semi-detached and end-of-terrace homes were built with a hipped roof, with a sloping end rather than a flat gable wall. A hip-to-gable loft conversion replaces that slope with a vertical wall, increasing both headroom and usable floor area within the loft.
Where it delivers:• Unlocks headroom that a standard dormer alone may not provide on hipped-roof properties
• The new gable wall can accommodate a full-height window, bringing light deeper into the converted space
• Integrates naturally into the existing roofline when carefully designed, helping to preserve the character of the streetscape
• Can provide a substantial increase in usable loft space where the existing roof structure is suitable
The L-Shaped Conversion: Purpose-Built for Period London Terraces
The back addition is the lower rear projection attached to the main body of many Victorian and Edwardian terraced houses across London. It is also key to understanding why the L-shaped loft conversion works so well in the capital. By extending the conversion over both the main rear roof and the back addition, the L-shaped design can deliver significantly more floor area than a single rear dormer, depending on the property's layout.
Where it delivers:
• A highly space-efficient conversion option for suitable Victorian and Edwardian terraces
• Can naturally separate sleeping and bathing areas within the converted floor
• Complements the rear elevation of period properties when sensitively designed
• Particularly effective for growing families looking to create two additional rooms from a single project
The Dormer Conversion: The Capital's Most Versatile Option
The rear dormer loft conversion remains one of the most widely used conversion types across London, and the reasons are straightforward. It can provide substantial additional space, frequently falls within permitted development where the relevant conditions are met, and is suitable for a wide range of property types, from Victorian terraces to 1930s semis and post-war housing stock.
Where your proposed dormer falls within permitted development, we will confirm this at the outset. Where it does not, we can manage the planning application process, keeping the project moving without placing the administrative burden on you.
House Extensions in London That Change How You Live
Not every space problem is solved by going upward. For many London homeowners, the priority is a ground floor that actually functions: an open-plan kitchen and dining space rather than a sequence of cramped rooms, a utility area that earns its footprint, or a family room with a genuine connection to the garden. House extensions in London deliver that transformation at ground level, with results that can reshape daily life from the moment the project is complete.
Rear Extensions — Opening Up the Back of the House
A rear extension is a direct route to expanding an open-plan ground floor. Whether the ambition is a kitchen-diner that seats twelve or a light-filled family room that flows into the garden, we design each rear extension around how the space will actually be used, not simply around what fits within the planning envelope.
Side Extensions and Side Returns — Reclaiming Wasted Space
London's Victorian and Edwardian terraces were often built with a narrow side return alongside the rear kitchen, a strip of external space that contributes little to the house as it stands. A side-return extension can reclaim that space, widening the kitchen and transforming what is often the most frustrating room in a period London home into something genuinely generous.
For properties with a more substantial side gap, a full side extension can deliver an additional room or a significantly wider ground-floor layout.
L-Shaped Extensions — Maximum Ground-Floor Expansion
Combining a rear and side extension into a single L-shaped extension footprint can deliver a substantial increase in ground-floor area where the layout and planning position allow it. The result can be a wide-open kitchen, dining and living space across much of the rear of the house, creating one of the most significant home transformations available to suitable properties.
Everything Under One Roof — Richway's All-Inclusive Project Delivery
Every loft conversion and house extension we deliver in London is managed end-to-end under a single contract, with a dedicated project manager responsible for the project from survey to handover.
What Makes Richway Special For House Extensions And Loft Conversions In London?
• Dedicate team
• Customised design and layout options
• Free consultation
• Project delivery on time
• Round-the-clock availability
• 10 years of guaranteed
• Adaptation of eco-friendly practices
