House
refurbishment
in Highgate, N6
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Hampstead Chartered Surveyors & Building ConsultancyA Highgate house refurbishment is decided as much by the borough line and the conservation area as by the house: we settle both before the layout.
Camden expects development to preserve or enhance the Highgate Conservation Area, and the neighbourhood plan's Policy DH2 asks the same of alterations on either side of the borough line.
Our survey of a Highgate house records the fabric that should survive the work as carefully as the rooms that will change.
Sources: Camden: Highgate Conservation Area Appraisal and Management Strategy (adopted October 2007), Highgate Neighbourhood Plan (adopted by Haringey in July 2017 and Camden in September 2017)
Original windows, doors and finishes
The neighbourhood plan calls original windows and doors integral to Highgate's character: they should be kept and repaired where possible, and any replacement should match in materials, design and detail.
It treats original materials, finishes and decorative details the same way, as essential and to be retained.
The forum also supports Article 4 directions aimed at replacement windows and doors and the removal of front garden walls.
We price sash and door repairs as a separate line, so the cost of keeping originals is clear beside the cost of replacing them.
Source: Highgate Neighbourhood Plan (adopted by Haringey in July 2017 and Camden in September 2017)
Listed houses and their gardens
Pevsner and Cherry's finest group in Highgate, the houses of The Grove, includes eleven listed buildings.
Behind Nos 1 to 6 even the garden walls, terraces and steps are listed grade II.
Camden says every part of a listed building is protected, the interior and later additions included, and work without consent is a criminal offence even where the owner did not know of the listing.
Sources: Camden: Highgate Conservation Area Appraisal and Management Strategy (adopted October 2007), Camden Council: Listed buildings
Old walls, insulation and damp
Camden's guidance encourages lime-based materials for brick and stone repair, which let walls breathe and resist mould.
It warns that painting or rendering masonry can trap moisture in traditional walls, so synthetic paints and cement renders are best avoided on them.
On the Haringey side, external wall insulation is supported in principle, provided it respects the building's character and historic significance.
For an older house we plan insulation, ventilation and heating as one system, so warming the house does not move the damp somewhere else.
Sources: Camden Planning Guidance: Home Improvements (January 2021), Haringey: Development Management DPD (adopted July 2017)
Extending the house as part of the refurbishment
Policy DH3 asks for rear extensions to be subordinate to the original house, to match its design and materials, to protect neighbours' amenity and to keep a proportionate garden.
Policy DH4 adds that side extensions, enlarged garages included, should not block or substantially fill the gaps between houses.
Haringey's Policy DM12 requires residential extensions to be of high quality and to respect neighbours' privacy and amenity.
Sources: Highgate Neighbourhood Plan (adopted by Haringey in July 2017 and Camden in September 2017), Haringey: Development Management DPD (adopted July 2017)
A Highgate house refurbishment: what the work covers
A whole-house refurbishment brings structure, services and finishes on every floor into one coordinated scheme. In Highgate the setting varies widely: Camden's Highgate Conservation Area appraisal separates places as different as Highgate Village, Fitzroy Park and Merton Lane/Millfield Lane, so a compact terrace and a house in a larger garden plot each need their own brief. Start by recording levels, daylight, stairs, windows and service routes.
Source: Camden: Highgate conservation appraisal and maps · Camden: Highgate Conservation Area appraisal PDF
Opening up a house can expose damp patches and pipe or cable runs in unexpected places. Trace the source of any moisture and map the existing service routes before new linings go up, rather than concealing a defect nobody has explained. Where fitted cupboards are planned, keep valves, meters and other equipment within reach behind them.
Moving a bathroom to another floor, or adding one, starts with the soil stack: confirm its position, the available water supply and the extract route before the plan is fixed. Valves, traps, electrical zones, lighting and maintenance access then follow the new layout, and the floor build-up should be checked before any hard finish or lowered ceiling is chosen.
Which consents a Highgate house refurbishment may need
A Highgate house refurbishment starts by confirming whether Camden or Haringey is the council, because each draws its own Highgate conservation boundary. Neither the neighbourhood name nor an N6 postcode decides the authority or the designation, so check the house with the GOV.UK council finder and that council's conservation map before design decisions are made.
Source: GOV.UK: find your local council · Camden: Highgate conservation appraisal and maps · Haringey: adopted Strategic Policies, Highgate context
Rearranging rooms inside a house is ordinarily not planning development, whereas external alterations, subdivision or a change of use need their own assessment. Some external work to a house can proceed under householder permitted-development rights, but test the address and the specified works against any Article 4 direction before relying on them.
Source: GOV.UK: when planning permission is required · GOV.UK: permitted development rights for householders · Camden heritage Article 4 directions
Search Historic England's list for the house and raise any removal of partitions, joinery or other historic fabric with the local planning authority first. Building Regulations sit apart from planning: settle the building-control route for structural, drainage, ventilation and electrical work before construction. Cutting into or altering a party wall can also require formal notice to the adjoining owner.
Source: Historic England: Search the List · Historic England: listed building consent · GOV.UK: building regulations approval · GOV.UK: party wall work you must tell your neighbour about
Running a house refurbishment on a Highgate street
Camden limits ordinary noisy building work at a house without special authorisation to 8am to 6pm Monday to Friday and 8am to 1pm on Saturday; working at any other time, Sundays and bank holidays included, needs authorisation. If Haringey is the council for the address, confirm its current requirements, and brief neighbouring households before the first noisy phase.
Source: Camden noisy building work hours · GOV.UK: find your local council
Whole-house work produces a steady flow of materials and waste. A skip on the public road needs the council's permit, and scaffolding or hoarding on the highway needs a separate licence, so identify the responsible highway authority and check parking arrangements for the street. Where a Camden parking bay is needed, follow Camden's parking-suspension guidance.
Source: GOV.UK: skip permits and local council finder · GOV.UK: scaffolding and hoarding licence · Camden parking bay suspensions
Decide early whether the household will live in the house during the works, because that shapes which floors can be stripped together and when water, heating or power can be isolated. Measure stairs, doorways and the route from the street before ordering large items, then plan surveys, permissions, ordering, construction and handover around the agreed scope.
What to prepare before asking for a house quotation
Send the full address and property type with existing plans or photographs of each floor, plus records of any consents granted for earlier work. Flag what still needs investigating, such as an unexplained damp patch, an uneven floor or an old electrical installation, so that a quotation allows for surveys rather than assumptions.
Walk through the house room by room, noting which existing features you want kept and which you want changed. Keep essential repairs and new layouts separate from optional upgrades, state the level of finish and any budget limit, and ask for inclusions, exclusions, allowances, fees and VAT treatment in writing so tenders can be compared like for like.
A Highgate house we have modernised
Questions about refurbishing a Highgate house
Should I replace or repair my original windows?
Repair first: the neighbourhood plan says original windows and doors should be retained and repaired where possible, and replacements should match them.
Can I insulate the outside walls of my house?
On the Haringey side external wall insulation is supported in principle if it respects the building's character; on the Camden side, ask the council for the specific house.
Are garden walls protected too?
Some are: the garden walls, terraces and steps behind Nos 1 to 6 The Grove are listed grade II.
Which plan applies to my alterations?
Camden's or Haringey's own policies for your address, together with Policy DH2 of the Highgate Neighbourhood Plan.
Is internal work controlled in a listed house?
Yes. Camden says every part of a listed building is protected, including the interior.
What does a house refurbishment in Highgate cost?
Your Highgate figure is confirmed after a feasibility visit.
Sources: Highgate Neighbourhood Plan (adopted by Haringey in July 2017 and Camden in September 2017), Haringey: Development Management DPD (adopted July 2017), Camden: Highgate Conservation Area Appraisal and Management Strategy (adopted October 2007), Camden Council: Listed buildings
Sources
- Camden: Highgate Conservation Area Appraisal and Management Strategy (adopted October 2007)
- Highgate Neighbourhood Plan (adopted by Haringey in July 2017 and Camden in September 2017)
- Camden Council: Listed buildings
- Camden Planning Guidance: Home Improvements (January 2021)
- Haringey: Development Management DPD (adopted July 2017)
History and architecture nearby
Guides & Local Reading
House Refurbishment in Nearby Areas
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