Everything for Lancaster on one page.

Location and context

Where Lancaster actually sits.

From the studio

45.7 mi

north of Beverly Hills.

From Downtown LA

44.9 mi

north of the Civic Center.

County area

Antelope Valley

Editorial grouping inside Los Angeles County.

Coordinates

34.698, -118.137

Approximate municipal centre.

Local review conditions

What sets a Lancaster project apart.

These are the conditions on record for Lancaster. Each one changes the design, the studies or the agencies involved — and each one still has to be confirmed for the exact parcel.

Recorded parameters

Typical local figures for Lancaster.

Typical editorial values — not a quote and not an official determination. Verify each figure with the city before deciding anything.

Maximum ADU size

1,200 sq ft detached; attached limited by the primary dwelling (state floor, Gov. Code § 66321)

Height limit

16 ft detached; up to 18 ft within ½ mile of a major transit stop; up to 25 ft attached (Gov. Code § 66321)

Rear / side setbacks

4 ft rear and 4 ft side minimum (Gov. Code § 66321)

Owner occupancy

No local owner-occupancy requirement for an ordinary ADU (§ 66315); qualified-buyer separate sales have an exception (§ 66341(c)(3)). For a JADU, shared sanitation triggers occupancy, subject to ownership exceptions (§ 66333(b)).

JADU rules

Up to 500 sq ft within a single-family residence; efficiency kitchen; occupancy only with shared sanitation, subject to statutory ownership exceptions (§ 66333)

Short-term rental

Not stated in the city's ADU submittal material; confirm with the city before planning any rental use

Fire sprinklers

Only required if the primary dwelling has sprinklers (Gov. Code § 66314)

Solar PV

Newly built detached ADUs fall under the Title 24 solar PV requirement

Construction hours

Set by the city noise ordinance; confirm the current window with the city

Local detailADU standards sit in Title 17 of the municipal code, and the city's plan submittal sheet asks for 11×17 sets with a cover sheet naming the adopted code editions, including the Los Angeles County Fire Code — so the drawing set itself is where most corrections happen.

Municipal sources last read on 2026-09-23. Cities revise ordinances and handouts — confirm the current version before deciding anything.

• City of Lancaster — official site (Title 17, ADU forms)
• Gov. Code §§ 66310–66342 (state ADU law)
• AB 976 (2023) — owner-occupancy prohibition made permanent
• CA HCD — ADU Handbook

Closest jurisdictions

Which cities surround Lancaster.

Real distances between municipal centres. Each city keeps its own code and process, so identifying the right jurisdiction comes before any design detail.

• Palmdale8.3 mi · Antelope Valley
• Santa Clarita31.3 mi · North County
• San Fernando33.5 mi · Central LA/Foothills
• La Cañada Flintridge34.6 mi · Central LA/Foothills
• Burbank37.1 mi · Central LA/Foothills

Official Lancaster sources: cityoflancasterca.org · cityoflancasterca.org

Legislative sources

The law that governs a project in Lancaster.

State statute, building standards, county records and Lancaster's own official sources. Each item links to the document it can be read in. Rules change, and only the exact address decides what applies.

• MunicipalLocal zoning and standardsLancaster planning sourceLancaster's own official source for zoning, land use, applications and review — where the current ordinance and municipal code applying to the address are confirmed.
• MunicipalMunicipal portal and departmentsCity of LancasterThe city's official portal for current building, planning and fire contacts, and for the published municipal code.
• StateState accessory dwelling unit lawCal. Gov. Code § 66310 et seq.The statute that frames how California cities must treat accessory dwelling units, including the limits on what a local ordinance may require.
• StateLocal ADU ordinance standardsCal. Gov. Code § 66314Sets the framework for the standards a local ADU ordinance may impose, which is why a city ordinance has to be read against the state section rather than on its own.
• StateJunior accessory dwelling unitsCal. Gov. Code § 66333The statutory treatment of junior accessory dwelling units, which follow a different path from a detached unit and are often the first option studied on a small lot.
• StateTwo-unit residential development (SB 9)Cal. Gov. Code § 65852.21The two-unit development pathway on eligible single-family parcels, with its own eligibility conditions and exclusions.
• StateUrban lot splitCal. Gov. Code § 66411.7The urban lot split provision that sits alongside the two-unit pathway, including the parcel conditions that decide whether it is available at all.
• StateHCD accessory dwelling unit guidanceCalifornia HCDThe state housing department's own guidance and handbook material on accessory dwelling units, useful for reading a local ordinance against state expectations.
• StateCalifornia Building Standards CodeCalifornia Code of Regulations, Title 24The building standards adopted statewide and enforced locally, published in editions — which is why the edition in effect at permit submittal matters.
• StateCALGreen building standardsTitle 24, Part 11 (CALGreen)The green building standards that apply to residential work, covering water, materials and construction waste requirements.
• StateBuilding energy efficiency standardsTitle 24, Part 6 (Energy Code)The energy standards applied by climate zone, which affect envelope, glazing, mechanical and on-site generation decisions.
• StateContractor licence verificationCal. Bus. & Prof. Code, CSLBThe state licence board's public lookup, the primary way to verify that whoever signs a construction contract holds an active licence.
• CountyCounty parcel and assessment recordsLos Angeles County AssessorPublic parcel records — the starting point for confirming ownership, parcel number and recorded characteristics before any design work.

Recommended reading

What to read before deciding in Lancaster.

Municipal services

Banks, licences, payments and records in Lancaster.

RSA takes no referral fees for recommending banks, lenders or vendors, and names none. Below is the service type, the rule that governs it and the official office where it is verified — plus Lancaster's own fee and records sources.