briefs, design and space planning
Service or goods category · Residential
Design and construction
Design coordination, construction, extensions, conversions and development delivery. Explore the main design and construction categories, exact needs and connected property routes for homeowners, residents, landlords and residential property teams.
Tell Property AI what you need
See the main routes available and choose a sensible place to begin.
Useful for
Homeowners and residentsLandlords and managing agentsResidential portfolio teams
In depth
Understand the property decision before choosing.
Design and construction connects property decisions, delivery routes and exact customer needs for homeowners, residents, landlords and residential property teams; it is designed as a navigable subject hub rather than a single generic service page.
Use the child pages to compare scope, property fit, timing, access, cost drivers, professional boundaries and the exact services or goods available.
The route is narrowed using property type, occupancy or operating use, existing records, access, urgency, specification and the responsibilities of owners, occupiers, landlords, managers and appointed professionals.
At this level, cost depends on the child route selected, the condition and type of property, scale, access, timing, specification and whether qualified or specialist attendance is required.
The guidance is supported by Ministry of Housing, Communities and Local Government, GOV.UK, Google Search Central. Source links and review dates are shown on the page so customers can distinguish general Mayfair guidance from statutory, professional or regulator information.
Mayfair keeps the selected property-service context in the Property AI handoff, including the exact route and any location chosen, so the conversation begins here rather than starting again.
See the property context
Turn a property idea into a clear project
What are you planning to change?
What this area covers
Turn a property idea into a clear project
What are you planning to change?
extensions, conversions and development
permissions, delivery and specialist coordination
Continue your route
Choose a category
Single-option wrapper levels are skipped here so the next genuine services or goods choices are visible immediately.
Category
Development routes
Development routes brings together the main design and construction decisions for homeowners, residents, landlords and residential property teams. Compare relevant disciplines, property situations, scope factors and the specific routes available before making an enquiry.
Open this pageCategory
Extensions and conversions
Extensions and conversions brings together the main design and construction decisions for homeowners, residents, landlords and residential property teams. Compare relevant disciplines, property situations, scope factors and the specific routes available before making an enquiry.
Open this pageCategory
Design services
Design services brings together the main design and construction decisions for homeowners, residents, landlords and residential property teams. Compare relevant disciplines, property situations, scope factors and the specific routes available before making an enquiry.
Open this pageCategory
Residential design and build
Residential design and build brings together the main design and construction decisions for homeowners, residents, landlords and residential property teams. Compare relevant disciplines, property situations, scope factors and the specific routes available before making an enquiry.
Open this pageCategory
Design and professional coordination
Design and professional coordination brings together the main design and construction decisions for homeowners, residents, landlords and residential property teams. Compare relevant disciplines, property situations, scope factors and the specific routes available before making an enquiry.
Open this pageApply the property context
Then narrow it for the building or use.
These are adaptations of the core route—not extra services counted as catalogue breadth.
occupied homesHome development projects for occupied homesOpen contextual guidance →landlords and rental propertiesHome development projects for landlords and rental propertiesOpen contextual guidance →flats and managed blocksHome development projects for flats and managed blocksOpen contextual guidance →period and heritage homesHome development projects for period and heritage homesOpen contextual guidance →planned home careHome development projects for planned home careOpen contextual guidance →home buyers and ownersPre-construction services for home buyers and ownersOpen contextual guidance →landlords and rental portfoliosPre-construction services for landlords and rental portfoliosOpen contextual guidance →leasehold and managed propertyPre-construction services for leasehold and managed propertyOpen contextual guidance →period and heritage propertyPre-construction services for period and heritage propertyOpen contextual guidance →residential development decisionsPre-construction services for residential development decisionsOpen contextual guidance →
What affects cost?
Price follows the real requirement.
Mayfair will confirm the scope before giving cost guidance. The main variables are:
- property and asset type
- scope, quantity and specification
- access, location and working hours
- urgency, phasing and specialist requirements
How to choose
Compare what matters.
Property AI can help compare:
- planned versus urgent need
- repair versus replacement
- single item versus complete package
- direct delivery versus coordinated specialist route
The Mayfair route
Simple from here.
One customer-facing journey, with the delivery, sourcing and specialist routes coordinated behind it.
- 1
Tell Property AI what you are trying to achieve.
- 2
Mayfair checks the property, location, specification and any constraints.
- 3
Mayfair confirms the appropriate delivery route, scope and next action.
Clear responsibility
Mayfair remains your single point of contact while the right delivery and specialist route is confirmed privately.
Before you start
Helpful, not essential.
You can begin with very little. These details simply help Mayfair reach the right answer faster.
- property type and postcode
- the outcome you want
- timing or urgency
- photos, measurements or documents where available
Common questions
Good to know.
What does design and construction include?
Design and construction covers the closest route described on this page, including scope, preparation, comparisons, professional boundaries and the next service, supply or referral step. Start with property type and postcode, the outcome you want, timing or urgency.
What affects the cost of design and construction?
The main variables are property and asset type, scope, quantity and specification, access, location and working hours, urgency, phasing and specialist requirements. Mayfair confirms these against the property and required outcome before giving tailored cost guidance.
What should be checked before arranging design and construction?
Check the existing property or product condition, access, responsibilities, timing and any regulated or specialist dependencies. For this route the first useful details are property type and postcode, the outcome you want, timing or urgency, photos, measurements or documents where available.
Can design and construction be considered in London and elsewhere in the UK?
Start with Birmingham. Serviceability, access and any local planning, landlord, lease or operational requirements are confirmed before the route proceeds.
Research and guidance
Sources behind this guidance.
General property guidance is separated from the facts and professional advice required for the actual property. Last reviewed 31 August 2026.
Ministry of Housing, Communities and Local GovernmentBuilding Regulations Approved DocumentsEngland · governmentGOV.UKBuilding regulations approvalEngland and Wales · governmentGOV.UKPlanning permission and building regulationsEngland · governmentGoogle Search CentralCreating helpful, reliable, people-first contentGlobal · search guidance
Indexing and evidence
Expanded route written for a distinct property situation, use case or specification. Statutory decisions, certifications and professional conclusions remain with the responsible authority or qualified person.
Browse by location
Options for Birmingham
Location can affect access, timing, regulations, property stock and the available delivery route.
Local property context
Design and construction in Birmingham.
Birmingham has residential, commercial and mixed-use property ranging from established stock to newer development. Building age, ownership, operational use and local access conditions are checked for the actual property rather than inferred from the city name.
Illustrative planning scenario—not a claimed completed Mayfair project. Published case studies will use verified project evidence only.- Access and logisticsTravel, loading, parking, site access, delivery windows and specialist availability can affect the practical route in Birmingham. Mayfair confirms these points against the postcode and required outcome.
- Property responsibilitiesPlanning, building control, ownership boundaries, lease obligations and specialist statutory requirements are checked for the actual address in Birmingham. A location page is guidance, not evidence that consent or serviceability is automatic.
- Route-specific checksFor design and construction, start with property type and postcode, the outcome you want, timing or urgency, photos, measurements or documents where available.
- Useful evidencePhotos, dimensions, existing records and a clear description of the outcome make the next step more accurate.