Guidance

Residential projects often begin with some form of existing information, such as historic drawings, estate agent plans, or previous approval documents. While this material can be useful, it is rarely a substitute for accurate, up-to-date information. Understanding the limitations of existing information is essential before relying on it for design or construction. Common sources of existing information Existing information may include: Previous architectural drawings Planning

A measured survey provides an accurate record of a building as it exists. It forms the factual basis upon which design, planning, and technical decisions are made. Without reliable existing information, even well-considered proposals are vulnerable to error. Establishing a reliable starting point Measured surveys capture the geometry, levels, and key features of a property. This information ensures that proposals are based on what is actually present, rather than assumptions

Structural design ensures that a building can safely support the loads placed upon it and remain stable throughout its life. Calculations provide the technical evidence that proposed works comply with building regulations and accepted engineering standards. They are a fundamental part of safe and responsible construction. When structural design is required Structural input is commonly required where works involve: Extensions and new openings Loft and garage conversions Remova

When applying for building regulations approval, there are two main routes available: a Full Plans application or a Building Notice. Both routes are valid, but they serve different purposes and carry different levels of certainty and risk. What is a Full Plans application A Full Plans application involves the submission of detailed drawings, specifications, and calculations for formal approval before work begins. The proposals are checked in advance against building regulatio

Building regulations set the minimum standards for the design and construction of buildings. They exist to ensure that work is safe, healthy, energy efficient, and fit for purpose. Unlike planning, building regulations focus on how a building is constructed rather than how it looks. What building regulations cover Building regulations apply to most forms of building work and typically address matters such as: Structural safety Fire safety and means of escape Thermal performan

Windows play a critical role in how a building looks, functions, and relates to its surroundings. While often perceived as a minor element, changes to windows can raise planning issues depending on their location, design, and impact. Understanding how windows are assessed helps avoid unnecessary objections, delays, or enforcement action. When windows require planning permission Planning permission may be required for new or altered windows where they: Change the external appe

Permitted development rights allow certain types of work to be carried out without applying for planning permission. These rights are defined nationally and are intended to streamline minor development where impacts are limited and predictable. Understanding what permitted development does, and does not, allow is essential before relying on it. What permitted development covers Permitted development commonly applies to modest residential works, including: Single-storey rear e

Planning permission governs whether and how development can take place. It is not simply a yes-or-no process, but a judgement made by the local authority against national policy, local planning guidance, and the specific characteristics of a site and its surroundings. Understanding when planning permission is required, and how decisions are made, helps avoid unnecessary applications, delays, and cost. When planning permission is required Planning permission is generally requi

Many residential projects begin with informal ideas sketches or conversations. This early thinking is valuable but there is often a point where professional input becomes necessary to move forward with confidence. Understanding when that point has been reached helps prevent missteps and allows decisions to be made on a sound and informed basis. Early ideas versus structured advice Initial ideas often focus on what a project might look like or how additional space could be cre

Every project is shaped by constraints. Some are obvious while others only become clear once the site building and context are properly understood. Understanding design constraints early allows proposals to be developed realistically and helps avoid frustration redesign and delay later in the process. What design constraints are Design constraints are the conditions that limit or influence what can be built and how a project can develop. They do not necessarily prevent develo

Feasibility and early design are about understanding what is possible before committing to a defined proposal. This stage allows ideas to be tested objectively and helps identify opportunities constraints and risks at the outset of a project. Rather than focusing on finished solutions early design work explores options assesses viability and establishes a clear direction for what follows. What feasibility means in practice - Feasibility is not simply about whether something