11 from adjacent districts — postcode shown on each card.
Exeter's housing mix — Georgian terraces in the cathedral quarter, Edwardian villas near Pennsylvania, post-war estates in Whipton, and suburban semis stretching toward Pinhoe — presents a distinct set of challenges for anyone looking to extend or reconfigure their home. With the city's conservation areas, surrounding greenbelt, and planning policies that prioritise character retention, hiring an architect familiar with Exeter's planning authority and local building vernacular isn't optional — it's essential.
Exeter's architectural market is shaped by competing pressures: strong demand for extensions and loft conversions (terraced stock in St Leonard's and Newtown is tight on space), a city council that takes heritage seriously, and a local plan that restricts sprawl into the valley landscape. Much of central Exeter sits within conservation areas where permitted development rights are withdrawn, meaning even modest rear extensions need planning consent. Listed buildings are common — particularly around the cathedral and along older streets like Fore Street — requiring specialist understanding of Listed Building Consent processes. The city's topography (built on a hill with clay subsoil in parts) often complicates foundations for extensions, particularly on sloping plots. Architects here tend to be busiest March through October when homeowners want designs ready for spring/summer builds, though planning timelines mean starting conversations in autumn for next-year work is sensible. Fees typically sit 8–12% of build cost for full service on domestic projects, with planning-only packages from £2,500 for straightforward extensions. Expect longer lead times if your project touches a conservation area or listed building — Exeter's planning officers are thorough.
Hiring an architect in Exeter usually begins with a site visit and feasibility discussion (often free or a nominal fee refunded against full appointment). For a typical side-return or rear extension, expect 8–12 weeks to reach planning submission once you've agreed a design, then 8 weeks for the council's decision (sometimes 13 weeks if it's a listed building or requires referral). Architects here should be on the Devon Association of Architects register or ARB-registered nationally; ask explicitly about their experience with Exeter City Council and whether they've navigated conservation area or Article 4 restrictions before. Full-service fees cover RIBA Stages 0–7 (concept through construction monitoring); many homeowners opt for Stages 0–4 (up to Building Regs approval) and use a project manager or builder for the build phase to save cost. Listed building specialists charge a premium — rightly so, given the additional consents and heritage statements required. Be aware that Building Control in Exeter can be handled by the council or a private inspector; your architect will typically coordinate either route. Most practices work remotely for design phases but will attend site during construction for key inspections.
Exeter City Council operates several conservation areas — St Leonard's, Pennsylvania, Newtown, and the Cathedral Close among them — where permitted development is restricted and design scrutiny is higher. If your property falls within one, even a small dormer or side extension requires planning permission, and officers will expect materials and proportions sympathetic to the streetscape. Article 4 directions remove certain PD rights across much of the city centre. The Local Plan prioritises brownfield development and has specific policies on protecting the Exeter skyline and valley setting; if you're on a hillside plot visible from distance, expect landscape impact to be assessed. Listed Building Consent is separate from planning permission and involves Historic England if your building is Grade I or II*. Devon's Building Control has particular focus on flood risk (parts of Exeter near the Exe and Alphin Brook are Flood Zones 2 and 3) and requires sustainable drainage consideration for extensions over 10m². Party Wall Act applies if you share walls with neighbours — your architect should flag this early. Parking standards are strict in denser areas; losing a driveway or garage space can be grounds for refusal unless you prove alternative provision.
For residential work, expect 8–12% of total build cost for full service (RIBA Stages 0–7), or £2,500–£5,000 for planning drawings only on a straightforward single-storey extension. Listed building or conservation area projects often sit at the higher end due to additional heritage work. Hourly rates range £60–£120 depending on seniority and firm size.
It depends on your location and the size of the extension. Much of central Exeter is in conservation areas where permitted development rights are withdrawn, meaning you'll need planning permission even for modest rear or side extensions. Your architect should check the Local Plan and any Article 4 directions on your property before advising.
Standard planning applications take 8 weeks from validation to decision. Listed building applications or those requiring Environmental Impact Assessment can take 13 weeks. Pre-application advice from Exeter City Council (recommended for complex sites) costs £120–£350 and takes around 4 weeks, but can speed up the formal application significantly.
Architects are ARB-registered and have completed a minimum seven years' training, including professional practice exams. Architectural designers or technologists may have strong technical skills but aren't legally entitled to call themselves 'architect'. For planning submissions and Building Regs in Exeter, either can submit drawings, but chartered architects (RIBA members) carry professional indemnity insurance and are bound by a code of conduct.
Not legally, but it's wise in Exeter. Many loft conversions here require planning permission (especially in conservation areas or if you're adding dormer windows), and all need Building Regs approval for structure, fire escape, insulation, and headroom. An architect will ensure the design meets both and maximises usable space. Expect £1,800–£3,500 for drawings and Building Regs submission.
You can, but local knowledge matters. Exeter's conservation policies, the council's interpretation of Local Plan policies, and relationships with planning officers make a measurable difference to approval speed and design compromises. An architect who's negotiated dormer designs in St Leonard's or heritage statements for Southernhay will save you time and potential refusals.
A feasibility study assesses whether your project idea is viable given planning constraints, site conditions, and budget. In Exeter, it's particularly useful if you're in a conservation area, on a sloping plot, or dealing with a listed building. Costs typically range £500–£1,500 and include a site visit, constraints analysis, and outline design options. It prevents wasting money on detailed designs for something the council will refuse.
Check the National Heritage List for England (Historic England's online database) using your postcode. Exeter has hundreds of listed buildings, especially around the cathedral, Southernhay, and older streets. If listed, you'll need Listed Building Consent for any alterations affecting character — internal or external — even if planning permission isn't required. Your architect must understand the heritage impact assessment process.
Most architects coordinate Building Control as part of their service, either through Exeter City Council's Building Control team or a private Approved Inspector. They'll prepare the drawings, calculations, and submissions required. Clarify upfront whether Building Regs fees (typically £800–£1,500 for an extension) are included in the architect's quote or paid separately.
You can appeal to the Planning Inspectorate (free but takes 3–6 months) or submit a revised application addressing the refusal reasons. Exeter City Council's refusal rate sits slightly above the national average for conservation-related objections, so pre-application advice is worth the cost. Your architect should assess the likelihood of overturn before recommending appeal versus redesign.
About the author
Senior Editor, Building & Renovation · 15years' experience · RIBA Part 1 & Part 2 qualified
RIBA-trained, now writes about UK extensions, loft conversions and planning. 15 years covering UK building regulations.