Extension Architecture

Most people planning an extension in Bromley start with a set of assumptions about what they can build, what it will cost, and how the planning process works. Some of those assumptions are right. Several are wrong in ways that cost time and money once the project starts. Here are the five misconceptions that come up most often, and what the reality actually looks like across BR1, BR2, and the wider borough. Homeowners searching for architects in Bromley benefit from clearing these up before spending anything on design. Myth 1: "My Extension Will Definitely Clear Under Permitted Development" This is the most common assumption, and it's wrong more often than homeowners expect in Bromley. Green Belt land covers substantial parts of the borough, particularly toward Orpington, Biggin Hill, Downe, and the rural fringes. Properties on Green Belt land lose most permitted development rights and require full planning applications even for modest extensions. Conservation areas incl...

Kitchen extension research online is full of half-truths repeated so often they sound like fact. Below are the claims that come up most in first meetings, checked against what actually happens on real kitchen extension projects, including four completed builds across London and Surrey. Myth: "A kitchen extension always needs full planning permission" Reality: Many single storey rear kitchen extensions fall under permitted development rights, provided they stay within volume and boundary limits set by national planning policy. Full planning is only triggered once the scheme exceeds those thresholds, or the property sits in a conservation area or has removed permitted development rights through an Article 4 Direction. The right first step is always a site specific check, not an assumption either way. Myth: "Bigger always means better value" Reality: Value uplift depends more on how the space connects to the rest of the house than on raw square footage. This played...

Most London loft conversions start with the same conversation. Family runs out of space, hears about the loft option, gets a rough quote, appoints a contractor, discovers halfway through that critical elements weren't discussed at the start. The observations below capture what actually matters at the earliest stages of a loft conversion project, drawn from patterns across hundreds of completed London projects. Read these before your first architect meeting and your questions at that meeting will be significantly better. A competent loft conversion service walks through each of these considerations at feasibility stage. Practices that skip them produce the compromised outcomes families regret. 1. Ridge Height Above 2.4 Metres Is the First Test Measure from the existing ceiling joists to the underside of the ridge. Above 2.4 metres works. Below 2.2 metres usually doesn't. Building Regulations Part K minimums determine viability before design ambition matters. 2. Roof Pitch Abov...

1,800. That is the number of planning applications Extension Architecture has successfully secured across 16 years of residential and commercial work in London and Surrey. A single number of that scale tells you more about how a residential practice actually operates than any portfolio photograph can. It reflects accumulated borough relationships, case officer familiarity, and pattern recognition across thousands of design decisions. For homeowners searching among the many architects london offers, distinguishing between practices that will deliver against ambitious briefs and practices that will produce compromised outcomes requires reading the data behind the marketing rather than the marketing itself. The analysis below unpacks the specific numbers that actually predict project outcomes. The Applications Volume Number That Predicts Everything Volume of planning applications processed correlates strongly with borough-specific expertise. A practice submitting hundreds of application...

Most homeowners searching for London architecture start with portfolio photographs. The images look similar across every serious practice website. Award winning kitchen extensions in Islington. Grade II listed refurbishments in Hampstead. New build homes in Barnes. Photography lies flat about the process that produced any of these outcomes. What actually distinguishes one practice from another sits under the finished photograph. The proof of that distinction shows up in a single data point that most practice websites carry but few visitors think to interrogate. The number of planning applications the practice has successfully secured. Across 16 years of operation from Roehampton, Extension Architecture has delivered over 1,800 approvals across residential briefs in London and Surrey, which is the kind of volume that produces genuine borough knowledge rather than borough claims. If you're searching for london architecture firm with real operational depth behind it, that scale of p...

Ask ten London architects which route works better for a residential loft conversion and you'll get two answers back. Half will recommend permitted development wherever the property qualifies. The other half will argue for a full planning application even when PD sits on the table. Both camps have real evidence behind their position. Neither is wrong. The right answer depends on the specific property, the specific brief, and how much design ambition the family carries into the project. The full argument below sits inside every conversation with a competent loft conversion service team at first appointment, and it's worth understanding both sides before appointing anyone. The PD Camp Argument The permitted development route is faster. That's the starting point. A Prior Approval Notification under Class B of the General Permitted Development Order runs 6 to 8 weeks. Full householder planning applications run 10 to 16 weeks. On projects where the family wants to start on ...