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ArcTECH Freelance Architecture

Also seen as: ArcTech, Arctech
arctech.gg

Practice of Niall Bougourd, Chartered Architectural Technologist (MCIAT ACIOB); 24 Le Bordage, St Peter Port GY1 1DE. Trading over 20 years, positioned as an affordable/freelance alternative to traditional practice fees. Not RICS-regulated. 65 applications as agent 2022-2025.

Images published by ArcTECH Freelance Architecture on their own website.

What they specialise in

Work types this firm files more often than the island does — "×3.9" means nearly four times the rate that type appears across all Guernsey applications. Ordered by the value of the work, not the ratio, so the jobs that actually pay come first: a rebuild at ×1.7 is worth far more than window replacement at ×2.5.

Work typeVs island rateJobsTypical jobEst. value of this work
Demolish & rebuild dwelling×1.97£750,000£5,250,000
Single-storey extension×1.724£100,000£2,400,000
Loft conversion×3.45£60,000£300,000

"Est. value of this work" is the typical job cost for that type multiplied by how many they filed — a rough sense of where the practice's money sits, not their fees or their turnover. Needs at least 12 applications on file and 3 in the category before a ratio is shown, so a small practice can't look like a specialist on two lucky jobs. Classified from each application's own wording, so a minority will sit in a category a human would read differently.

The properties they work on

Of 65 applications this firm filed, 15 are tied to a later recorded sale of the same address, and 14 of those carry a real price. The midpoint is £589,541, each carried forward to 2026 money at the island index. Most of their filed work is in St Peter Port (24), St Martin (10), Castel (9).

1 matched sale recorded at a nominal £1–£100 was excluded — those are family or trust transfers, not market prices. Matching is by address and parish against the States register, not a shared ID, so a shared house name can mismatch. It tells you the value bracket this firm operates in; it is not their fee and not a claim about any individual job.

Work-type mix

Classified from each application's own description text, most common first — the same keyword model this site's planning cost estimates use. Select a type to filter the applications below.

Typical cost of work

£35,841–£63,491 average, estimated per application from its own description text using this site's planning cost model — a rough guide only, not a quote from ArcTECH Freelance Architecture or a reflection of what any specific job actually cost, and it does not include design fees. Each row below also carries an estimate at the prices of the year it was filed, deflated with the island house-price index — a proxy, since that index tracks house prices rather than construction costs and the two genuinely diverge (materials spiked in 2021–22 well beyond house-price growth). No Guernsey construction-cost index is published, so this is the best basis available, and it is an estimate on top of an estimate. 7 demolish-and-rebuild applications excluded from the average — that category prices per m² of the rebuild, which isn't recorded per application here.

65 planning applications as agent — real cross-references

Success rate on decided applications: 94% granted (59 granted, 4 refused, of 63 decided — pending/withdrawn excluded)

ApplicationAddressDescriptionDecision
FULL/2023/1383The Pink House Rue Des Marais St. Pierre Du Bois Guernsey GY7 9LDDemolish chimneys, install windows at second floor level to west (front) and east (rear) gable and rooflights …
Est. £14,088–£29,350 at 2023 prices
Granted
Later sold 2021-10-21 · £609,375
Full record
Decision notice (PDF)
FULL/2023/1421Kevala Les Juqueurs Road Vale Guernsey GY3 5REDemolish existing outbuilding, erect garden room and shed to north boundary.
Est. £29,350–£52,830 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/1544La Petite Croute Kings Road St. Peter Port Guernsey GY1 1QBErect dwelling with associated works to east of site and create vehicle access to south boundary.
Est. £5,870–£17,610 at 2023 prices
Granted
Later sold 2024-08-06 · £1,170,000
Full record
Decision notice (PDF)
FULL/2023/1627Qila York Avenue Fort George St. Peter Port Guernsey GY1 2SYRemove hedge, erect wall, pillars, alter and install gate to existing vehicle access to west boundary.
Est. £5,870–£17,610 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/1713Willow Park Ville Au Roi St. Peter Port Guernsey GY1 1NZInstall external insulating render system and alterations to fenestration.
Est. £17,610–£46,960 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/2004Cloud End Rue Du Planel Torteval Guernsey GY8 0RFDemolish and erect replacement dwelling with associated works and install gate to vehicle access.GrantedFull record
Decision notice (PDF)
FULL/2023/2022Camblez House Queens Road St. Peter Port Guernsey GY1 1PSErect detached garden room to east boundary and conservatory to south boundary. Replace/install balustrade to …
Est. £9,392–£21,132 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/2207Amethyst Cottage La Planque Road St. Martin Guernsey GY4 6THChange of use of agricultural land to domestic garden (1,610sqm).
Est. £17,610–£46,960 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/2255Belmont Cottage Les Grands Marais Vale Guernsey GY3 5DUErect single storey extension to north (rear) elevation and alterations to fenestration.
Est. £52,830–£88,050 at 2023 prices
GrantedFull record
Decision notice (PDF)
FULL/2023/2315Bag End Victoria Avenue St. Sampson Guernsey GY2 4BDDemolish extension, erect extension at ground and first floor level to north (rear) elevation and erect single…
Est. £52,830–£88,050 at 2023 prices
Granted
Later sold 2020-12-01 · £336,375
Full record
Decision notice (PDF)
FULL/2023/2349Courtil Canivet Calais Lane St. Martin Guernsey GY4 6AUDemolish existing dwelling, erect replacement dwelling with associated works and widen vehicle access.WithdrawnFull record
FULL/2023/2425Hillview Le Variouf Forest Guernsey GY8 0BHErect fence to south and west boundary (Protected Building).
Est. £5,870–£17,610 at 2023 prices
RefusedFull record
Decision notice (PDF)
FULL/2023/2472Asturias Highfield Estate Upper St. Jacque's St. Peter Port Guernsey GY1 1STErect 2 storey extension to north (rear) elevation, erect porch to south (front) and alterations to fenestrati…
Est. £52,830–£88,050 at 2023 prices
Granted
Later sold 2023-07-04 · £507,000
Full record
Decision notice (PDF)
FULL/2024/0014Merton Rue Du Cornus St. Martin Guernsey GY4 6PUDemolish existing dwelling, erect replacement dwelling with associated works and demolish section of wall to c…GrantedFull record
Decision notice (PDF)
FULL/2024/00192 Clos De Bas Green Lanes St. Peter Port Guernsey GY2 4LPErect retaining wall and fence to west boundary.
Est. £6,096–£18,288 at 2024 prices
Granted
Later sold 2012-06-12 · £586,625
Full record
Decision notice (PDF)
FULL/2024/00302 Portland Place Cambridge Park Road St. Peter Port Guernsey GY1 1UFVariations to previously approved plans to extend and alter at ground, 1st floor level and 2nd floor level wit…
Est. £54,863–£91,438 at 2024 prices
Granted
Later sold 2016-11-22 · £308,750
Full record
Decision notice (PDF)
FULL/2024/0061Hanmar Clos de Marais Rue Des Marais Vale Guernsey GY6 8AZDemolish extension, erect single storey extension to south (side) and east (rear) elevations.
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0110Choisy Queens Road St. Peter Port Guernsey GY1 1PTDemolish/partially demolish existing greenhouses, erect greenhouse and provide hardstanding to west of propert…
Est. £18,288–£48,767 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0311Ivymount 51 Mount Durand St. Peter Port Guernsey GY1 1DYEnlarge dormer windows, install rooflight, internal and fenestration alterations; alterations to roadside wall…
Est. £54,863–£79,246 at 2024 prices
Granted
Later sold 2017-11-23 · £155,000
Full record
Decision notice (PDF)
FULL/2024/0343La Cachette Ruette Du Guet Castel Guernsey GY5 7ELExtend and alter dwelling at first floor level to south (rear) elevation.
Est. £18,288–£48,767 at 2024 prices
RefusedFull record
Decision notice (PDF)
FULL/2024/0378Pre De Calais Rue De Calais St. Martin Guernsey GY4 6ATExtend and alter to south (side) elevation.
Est. £18,288–£48,767 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0416The Workshop Route De Saumarez Castel Guernsey GY6 8HDRaise roof height to create additional floor area, erect single storey extension to south-east (rear) elevatio…
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0597Rosendale La Planque Road St. Martin Guernsey GY4 6THDemolish shed, erect one-and-a-half storey outbuilding/garage to north boundary and hardstanding to west bound…
Est. £30,479–£54,863 at 2024 prices
RefusedFull record
Decision notice (PDF)
FULL/2024/06371 San Simeon Route De Farras Forest Guernsey GY8 0EGDemolish extension, erect single storey extension to south (rear) elevation.
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0651Hillsea Close de Colbourne Fort Road St. Peter Port Guernsey GY1 1ZXRemove hedge and erect fence to west boundary (retrospective) (revised Scheme).
Est. £6,096–£18,288 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0782Whincroft Bailiffs Cross Road St. Andrew Guernsey GY6 8SDErect 2 storey extension to south-west (rear) elevation with Juliet balcony to north-west elevation.
Est. £54,863–£91,438 at 2024 prices
Granted
Later sold 2008-03-13 · £1
Full record
Decision notice (PDF)
FULL/2024/0847Sea Breeze La Longue Rue Vazon Road Castel Guernsey GY5 7LJErect dormer window at 1st floor level including Juliet balconies to south-east (rear) elevation.
Est. £54,863–£79,246 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0947The Barn L'Heritage Des Monts Les Petils Bordeaux Vale Guernsey GY3 5NBExcavate section of raised earth bank and erect single outbuilding/store to north of property.
Est. £30,479–£54,863 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/0973Havelet House Belmont Terrace St. Peter Port Guernsey GY1 1BADemolish section of wall and railings to widen vehicle access and parking area.
Est. £6,096–£18,288 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1008Havelet House Belmont Terrace St. Peter Port Guernsey GY1 1BADemolish extension, erect single storey extension and install dormer window to north (rear) elevation, install…
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1071Tangle Trees Le Vauquiedor St. Peter Port Guernsey GY1 2UPWiden, alter and erect wall, pillars and gate to vehicle access to south boundary (retrospective).
Est. £6,096–£18,288 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1135Horizon Clos D' Albecq Castel Guernsey GY5 7HPVariation to previously approved plans to extend and alter dwelling to south (side) elevation and erect outbui…
Est. £54,863–£79,246 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1183Les Chataigniers Courtil de la Fontaine Kings Road St. Peter Port Guernsey GY1 1QBConvert, extend and alter outbuilding/garage to create dwelling, with associated works, relocate existing vehi…
Est. £30,479–£54,863 at 2024 prices
WithdrawnFull record
FULL/2024/1244Courtil Canivet Calais Lane St. Martin Guernsey GY4 6AUDemolish existing dwelling, erect replacement dwelling with associated works and widen vehicle access.GrantedFull record
Decision notice (PDF)
FULL/2024/1267La Miette La Ruette Fort George St. Peter Port Guernsey GY1 2SXErect pillars and gate to alter existing vehicle access, remove and replant section of hedge to south and east…
Est. £6,096–£18,288 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1306La Maraive La Rue De La Maraive Vale Guernsey GY3 5BEInstall 2 dormers and rooflight to south (front) elevation. Install dormer to north (rear) elevation and inser…
Est. £54,863–£79,246 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1318Granite Lodge Rue Des Bailleuls St. Andrew Guernsey GY6 8XBInstall gate to south roadside boundary.
Est. £6,096–£18,288 at 2024 prices
Granted
Later sold 2010-09-28 · £836,000
Full record
Decision notice (PDF)
FULL/2024/1357Stable Flat Oriana Lodge Rue des Fontenelles Forest Guernsey GY8 0BLDemolish shed and erect single storey extension to east (side) of property.
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1498Santana Les Effards Road St. Sampson Guernsey GY2 4YWDemolish conservatory, erect single storey extension to east (side) elevation.
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1527Haven Tree (formerly Highland View) Les Vardes St. Peter Port GuernseyDemolish extensions, erect single storey extensions to south (side) and east (front) elevation, alterations to…
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1528Havelet House Belmont Terrace Havelet St. Peter Port Guernsey GY1 1BAVariations to previously approved plans to demolish extension, erect single storey extension and install dorme…
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/157135 Le Pollet St. Peter Port GuernseyChange of use of ground and first floor levels from restaurant (Use Class 11) to dental surgery (Use Class 18)…
Est. £18,288–£48,767 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1587No 8 Union Street St. Peter Port Guernsey GY1 2PSDemolish and rebuild chimney to east gable, replacement roof covering and dormers to main dwelling and interna…RefusedFull record
Decision notice (PDF)
FULL/2024/1742Les Châtaigniers Courtil De La Fontaine Kings Road St. Peter Port Guernsey GY1 1QBConvert, extend and alter outbuilding/garage to create dwelling with associated works, relocate existing vehic…
Est. £30,479–£54,863 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1766Marbella Guildown Close Le Villocq Castel Guernsey GY5 7SHExtend at ground floor level and erect extension at 1st floor level to north-east (side) elevation with balcon…
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1853Langtoft Rouge Huis Avenue St. Peter Port Guernsey GY1 1RXDemolish chimney, extend and alter at ground floor and 1st floor level, create balcony at 2nd floor level, ins…
Est. £14,630–£30,479 at 2024 prices
Granted
Later sold 2024-08-06 · £809,250
Full record
Decision notice (PDF)
FULL/2024/187133 George Street St. Peter Port Guernsey GY1 1NFChange of use of ground floor from retail to a residential flat (Use Class 2) and replacement windows.
Est. £9,753–£24,383 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/1897La Cachette Sous Les Courtils Castel Guernsey GY5 7EGErect single storey extension to south-east (front) elevation and erect shed to south-east boundary.
Est. £54,863–£91,438 at 2024 prices
Granted
Later sold 2023-05-04 · £380,250
Full record
Decision notice (PDF)
FULL/2024/1922Malvern Longue Rue Vale Guernsey GY6 8DBDemolish outbuilding, extend and alter at 1st floor level to east (rear) elevation. Erect 1.5 storey detached …
Est. £30,479–£54,863 at 2024 prices
Granted
Later sold 2024-02-20 · £200
Full record
Decision notice (PDF)
FULL/2024/1985Elm Trees La Route Des Cornus St. Martin Guernsey GY4 6PZErect single storey extension/garden room to north (side) elevation of building.
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2024/2080L'Hirondelle Jerbourg Road St. Martin Guernsey GY4 6AZDemolish extensions, erect single storey extensions to north-east (rear) and porch to south-west (front) eleva…
Est. £54,863–£91,438 at 2024 prices
Granted
Later sold 2024-12-05 · £731,250
Full record
Decision notice (PDF)
FULL/2024/2094Eturs Place Rue Des Eturs Castel Guernsey GY5 7DUDemolish extension and chimney, erect single storey extension, raised terrace area and erect dormer window to …
Est. £54,863–£91,438 at 2024 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0018Wyndham Rose Helston Estate Rue De La Perruque Castel Guernsey GY5 7NZRaise and alter ground levels, install retaining wall to garden area and install patio area to north-east of s…
Est. £6,299–£18,898 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/00281 & 2 Grand Havre Cottages Picquerel Road St. Sampson Guernsey GY2 4SEDemolish existing 2 dwellings, erect 3 dwellings and associated works, alter roadside wall to create additiona…GrantedFull record
Decision notice (PDF)
FULL/2025/0071La Cachette Les Querites Castel Guernsey GY5 7EEDemolish conservatory, erect dormer window to east (front) and west (rear) elevations to create accommodation …
Est. £56,694–£81,891 at 2025 prices
Granted
Later sold 2024-07-02 · £550,875
Full record
Decision notice (PDF)
FULL/2025/0129Cobweb Cottage Les Hougues Magues Road St. Sampson Guernsey GY2 4UPErect 1.5 storey extension to west (side) elevation and install dormer window to south (rear) elevation.
Est. £56,694–£94,489 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0165Santa Maria Damouettes Lane St. Peter Port Guernsey GY1 1ZTDemolish extension, erect single storey extension and raised terrace area to west (rear) elevation, install ro…
Est. £56,694–£94,489 at 2025 prices
Granted
Later sold 2024-12-17 · £575,000
Full record
Decision notice (PDF)
FULL/2025/0214Lavender House Les Caches Road St. Martin Guernsey GY4 6PWDemolish conservatory, erect single storey extension to north-west (rear) elevation, enclose porch to south-ea…
Est. £56,694–£94,489 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0243Unit 2 Stable Flat Oriana Lodge Rue des Fontenelles Forest Guernsey GY8 0BLErect single storey extension to south (rear) elevation.
Est. £56,694–£94,489 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0250Le Clos D'Hy Les Mourants Road St. Martin Guernsey GY4 6TWExtend and alter roof to create first floor extension, erect single storey extensions to west (rear) and south…GrantedFull record
Decision notice (PDF)
FULL/2025/0277Highlands La Croix du Bois Vale Guernsey GY3 5LBErect single storey extension to south elevation, demolish chimney, replace roof covering and install cladding…
Est. £56,694–£94,489 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/02981 La Heche Route De La Passee St. Sampson Guernsey GY2 4TLChange of use of agricultural land to domestic garden (462sqm) and associated works (Retrospective).
Est. £18,898–£50,394 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0380Land to rear of Ivymount 51 Mount Durand St. Peter Port Guernsey GY1 1DYVariation to previously approved plans to erect 2 dwellings with associated underground parking area (revised …
Est. £6,299–£18,898 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0402Kinallen 6 Clos Des Petites Maisons Vale Road St. Sampson Guernsey GY2 4DRErect shed to west boundary and erect fence to south boundary to alter parking area (west of dwelling), and er…
Est. £10,079–£22,677 at 2025 prices
GrantedFull record
Decision notice (PDF)
FULL/2025/0499Casa Freitas Les Petites Capelles Road St. Sampson Guernsey GY2 4GSDemolish extension, extend and alter to south (side) and north (rear) elevations.
Est. £56,694–£94,489 at 2025 prices
GrantedFull record
Decision notice (PDF)
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