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Building a house in the UK in 2025 costs £2,200–£3,800/m² depending on region, design, and finish. A typical 3-bed home costs £220K–£300K, excluding land. Costs vary due to location, materials, labour, and build method. Self-build options can save up to 25%. Planning permission usually lasts 3 years. Budget for land, surveys, VAT, and energy-efficient upgrades. Proper planning helps avoid delays and keeps your project legally compliant and financially on track.

Planning permission in the UK typically lasts 3 years for full and householder applications. For outline permission, applicants have 3 years to submit reserved matters and 2 additional years to begin construction. If work doesn't start within the set timeframe, permission expires and reapplication is required. Making a material start—like laying foundations—helps secure the validity of the consent. The article outlines risks such as project delays, missing deadlines, and misunderstandings around what counts as a valid start. It also explains how the 10-year rule may apply to long-standing unauthorised works. dRAW Architecture supports clients through the full planning process, including strategy, Section 73 amendments, reapplications, and lawful development documentation.